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+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based on authentic facts. BEWARE!
Some background:
The РТАК-30 attack vintoplan (also known as vintokryl) owed its existence to the Mil Mi-30 plane/helicopter project that originated in 1972. The Mil Mi-30 was conceived as a transport aircraft that could hold up to 19 passengers or two tons of cargo, and its purpose was to replace the Mi-8 and Mi-17 Helicopters in both civil and military roles. With vertical takeoff through a pair of tiltrotor engine pods on the wing tips (similar in layout to the later V-22 Osprey) and the ability to fly like a normal plane, the Mil Mi-30 had a clear advantage over the older models.
Since the vintoplan concept was a completely new field of research and engineering, a dedicated design bureau was installed in the mid-Seventies at the Rostov-na-Donu helicopter factory, where most helicopters from the Mil design bureau were produced, under the title Ростов Тилт Ротор Авиационная Компания (Rostov Tilt Rotor Aircraft Company), or РТАК (RTRA), for short.
The vintoplan project lingered for some time, with basic research being conducted concerning aerodynamics, rotor design and flight control systems. Many findings later found their way into conventional planes and helicopters. At the beginning of the 1980s, the project had progressed far enough that the vintoplan received official backing so that РТАК scientists and Mil helicopter engineers assembled and tested several layouts and components for this complicated aircraft type.
At that time the Mil Mi-30 vintoplan was expected to use a single TV3-117 Turbo Shaft Engine with a four-bladed propeller rotors on each of its two pairs of stub wings of almost equal span. The engine was still installed in the fuselage and the proprotors driven by long shafts.
However, while being a very clean design, this original layout revealed several problems concerning aeroelasticity, dynamics of construction, characteristics for the converter apparatuses, aerodynamics and flight dynamics. In the course of further development stages and attempts to rectify the technical issues, the vintoplan layout went through several revisions. The layout shifted consequently from having 4 smaller engines in rotating pods on two pairs of stub wings through three engines with rotating nacelles on the front wings and a fixed, horizontal rotor over the tail and finally back to only 2 engines (much like the initial concept), but this time mounted in rotating nacelles on the wing tips and a canard stabilizer layout.
In August 1981 the Commission of the Presidium of the USSR Council of Ministers on weapons eventually issued a decree on the development of a flyworthy Mil Mi-30 vintoplan prototype. Shortly afterwards the military approved of the vintoplan, too, but desired bigger, more powerful engines in order to improve performance and weight capacity. In the course of the ensuing project refinement, the weight capacity was raised to 3-5 tons and the passenger limit to 32. In parallel, the modified type was also foreseen for civil operations as a short range feederliner, potentially replacing Yak-40 and An-24 airliners in Aeroflot service.
In 1982, РТАК took the interest from the military and proposed a dedicated attack vintoplan, based on former research and existing components of the original transport variant. This project was accepted by MAP and received the separate designation РТАК-30. However, despite having some close technical relations to the Mi-30 transport (primarily the engine nacelles, their rotation mechanism and the flight control systems), the РТАК-30 was a completely different aircraft. The timing was good, though, and the proposal was met with much interest, since the innovative vintoplan concept was to compete against traditional helicopters: the design work on the dedicated Mi-28 and Ka-50 attack helicopters had just started at that time, too, so that РТАК received green lights for the construction of five prototypes: four flyworthy machines plus one more for static ground tests.
The РТАК-30 was based on one of the early Mi-30 layouts and it combined two pairs of mid-set wings with different wing spans with a tall tail fin that ensured directional stability. Each wing carried a rotating engine nacelle with a so-called proprotor on its tip, each with three high aspect ratio blades. The proprotors were handed (i.e. revolved in opposite directions) in order to minimize torque effects and improve handling, esp. in the hover. The front and back pair of engines were cross-linked among each other on a common driveshaft, eliminating engine-out asymmetric thrust problems during V/STOL operations. In the event of the failure of one engine, it would automatically disconnect through torque spring clutches and both propellers on a pair of wings would be driven by the remaining engine.
Four engines were chosen because, despite the weight and complexity penalty, this extra power was expected to be required in order to achieve a performance that was markedly superior to a conventional helicopter like the Mi-24, the primary Soviet attack helicopter of that era the РТАК-30 was supposed to replace. It was also expected that the rotating nacelles could also be used to improve agility in level flight through a mild form of vectored thrust.
The РТАК-30’s streamlined fuselage provided ample space for avionics, fuel, a fully retractable tricycle landing gear and a two man crew in an armored side-by-side cockpit with ejection seats. The windshield was able to withstand 12.7–14.5 mm caliber bullets, the titanium cockpit tub could take hits from 20 mm cannon. An autonomous power unit (APU) was housed in the fuselage, too, making operations of the aircraft independent from ground support.
While the РТАК-30 was not intended for use as a transport, the fuselage was spacious enough to have a small compartment between the front wings spars, capable of carrying up to three people. The purpose of this was the rescue of downed helicopter crews, as a cargo hold esp. for transfer flights and as additional space for future mission equipment or extra fuel.
In vertical flight, the РТАК-30’s tiltrotor system used controls very similar to a twin or tandem-rotor helicopter. Yaw was controlled by tilting its rotors in opposite directions. Roll was provided through differential power or thrust, supported by ailerons on the rear wings. Pitch was provided through rotor cyclic or nacelle tilt and further aerodynamic surfaces on both pairs of wings. Vertical motion was controlled with conventional rotor blade pitch and a control similar to a fixed-wing engine control called a thrust control lever (TCL). The rotor heads had elastomeric bearings and the proprotor blades were made from composite materials, which could sustain 30 mm shells.
The РТАК-30 featured a helmet-mounted display for the pilot, a very modern development at its time. The pilot designated targets for the navigator/weapons officer, who proceeded to fire the weapons required to fulfill that particular task. The integrated surveillance and fire control system had two optical channels providing wide and narrow fields of view, a narrow-field-of-view optical television channel, and a laser rangefinder. The system could move within 110 degrees in azimuth and from +13 to −40 degrees in elevation and was placed in a spherical dome on top of the fuselage, just behind the cockpit.
The aircraft carried one automatic 2A42 30 mm internal gun, mounted semi-rigidly fixed near the center of the fuselage, movable only slightly in elevation and azimuth. The arrangement was also regarded as being more practical than a classic free-turning turret mount for the aircraft’s considerably higher flight speed than a normal helicopter. As a side effect, the semi-rigid mounting improved the cannon's accuracy, giving the 30 mm a longer practical range and better hit ratio at medium ranges. Ammunition supply was 460 rounds, with separate compartments for high-fragmentation, explosive incendiary, or armor-piercing rounds. The type of ammunition could be selected by the pilot during flight.
The gunner can select one of two rates of full automatic fire, low at 200 to 300 rds/min and high at 550 to 800 rds/min. The effective range when engaging ground targets such as light armored vehicles is 1,500 m, while soft-skinned targets can be engaged out to 4,000 m. Air targets can be engaged flying at low altitudes of up to 2,000 m and up to a slant range of 2,500 m.
A substantial range of weapons could be carried on four hardpoints under the front wings, plus three more under the fuselage, for a total ordnance of up to 2,500 kg (with reduced internal fuel). The РТАК-30‘s main armament comprised up to 24 laser-guided Vikhr missiles with a maximum range of some 8 km. These tube-launched missiles could be used against ground and aerial targets. A search and tracking radar was housed in a thimble radome on the РТАК-30’s nose and their laser guidance system (mounted in a separate turret under the radome) was reported to be virtually jam-proof. The system furthermore featured automatic guidance to the target, enabling evasive action immediately after missile launch. Alternatively, the system was also compatible with Ataka laser-guided anti-tank missiles.
Other weapon options included laser- or TV-guided Kh-25 missiles as well as iron bombs and napalm tanks of up to 500 kg (1.100 lb) caliber and several rocket pods, including the S-13 and S-8 rockets. The "dumb" rocket pods could be upgraded to laser guidance with the proposed Ugroza system. Against helicopters and aircraft the РТАК-30 could carry up to four R-60 and/or R-73 IR-guided AAMs. Drop tanks and gun pods could be carried, too.
When the РТАК-30's proprotors were perpendicular to the motion in the high-speed portions of the flight regime, the aircraft demonstrated a relatively high maximum speed: over 300 knots/560 km/h top speed were achieved during state acceptance trials in 1987, as well as sustained cruise speeds of 250 knots/460 km/h, which was almost twice as fast as a conventional helicopter. Furthermore, the РТАК-30’s tiltrotors and stub wings provided the aircraft with a substantially greater cruise altitude capability than conventional helicopters: during the prototypes’ tests the machines easily reached 6,000 m / 20,000 ft or more, whereas helicopters typically do not exceed 3,000 m / 10,000 ft altitude.
Flight tests in general and flight control system refinement in specific lasted until late 1988, and while the vintoplan concept proved to be sound, the technical and practical problems persisted. The aircraft was complex and heavy, and pilots found the machine to be hazardous to land, due to its low ground clearance. Due to structural limits the machine could also never be brought to its expected agility limits
During that time the Soviet Union’s internal tensions rose and more and more hampered the РТАК-30’s development. During this time, two of the prototypes were lost (the 1st and 4th machine) in accidents, and in 1989 only two machines were left in flightworthy condition (the 5th airframe had been set aside for structural ground tests). Nevertheless, the РТАК-30 made its public debut at the Paris Air Show in June 1989 (the 3rd prototype, coded “33 Yellow”), together with the Mi-28A, but was only shown in static display and did not take part in any flight show. After that, the aircraft received the NATO ASCC code "Hemlock" and caused serious concern in Western military headquarters, since the РТАК-30 had the potential to dominate the European battlefield.
And this was just about to happen: Despite the РТАК-30’s development problems, the innovative attack vintoplan was included in the Soviet Union’s 5-year plan for 1989-1995, and the vehicle was eventually expected to enter service in 1996. However, due to the collapse of the Soviet Union and the dwindling economics, neither the РТАК-30 nor its civil Mil Mi-30 sister did soar out in the new age of technology. In 1990 the whole program was stopped and both surviving РТАК-30 prototypes were mothballed – one (the 3rd prototype) was disassembled and its components brought to the Rostov-na-Donu Mil plant, while the other, prototype No. 1, is rumored to be stored at the Central Russian Air Force Museum in Monino, to be restored to a public exhibition piece some day.
General characteristics:
Crew: Two (pilot, copilot/WSO) plus space for up to three passengers or cargo
Length: 45 ft 7 1/2 in (13,93 m)
Rotor diameter: 20 ft 9 in (6,33 m)
Wingspan incl. engine nacelles: 42 ft 8 1/4 in (13,03 m)
Total width with rotors: 58 ft 8 1/2 in (17,93 m)
Height: 17 ft (5,18 m) at top of tailfin
Disc area: 4x 297 ft² (27,65 m²)
Wing area: 342.2 ft² (36,72 m²)
Empty weight: 8,500 kg (18,740 lb)
Max. takeoff weight: 12,000 kg (26,500 lb)
Powerplant:
4× Klimov VK-2500PS-03 turboshaft turbines, 2,400 hp (1.765 kW) each
Performance:
Maximum speed: 275 knots (509 km/h, 316 mph) at sea level
305 kn (565 km/h; 351 mph) at 15,000 ft (4,600 m)
Cruise speed: 241 kn (277 mph, 446 km/h) at sea level
Stall speed: 110 kn (126 mph, 204 km/h) in airplane mode
Range: 879 nmi (1,011 mi, 1,627 km)
Combat radius: 390 nmi (426 mi, 722 km)
Ferry range: 1,940 nmi (2,230 mi, 3,590 km) with auxiliary external fuel tanks
Service ceiling: 25,000 ft (7,620 m)
Rate of climb: 2,320–4,000 ft/min (11.8 m/s)
Glide ratio: 4.5:1
Disc loading: 20.9 lb/ft² at 47,500 lb GW (102.23 kg/m²)
Power/mass: 0.259 hp/lb (427 W/kg)
Armament:
1× 30 mm (1.18 in) 2A42 multi-purpose autocannon with 450 rounds
7 external hardpoints for a maximum ordnance of 2.500 kg (5.500 lb)
The kit and its assembly:
This exotic, fictional aircraft-thing is a contribution to the “The Flying Machines of Unconventional Means” Group Build at whatifmodelers.com in early 2019. While the propulsion system itself is not that unconventional, I deemed the quadrocopter concept (which had already been on my agenda for a while) to be suitable for a worthy submission.
The Mil Mi-30 tiltrotor aircraft, mentioned in the background above, was a real project – but my alternative combat vintoplan design is purely speculative.
I had already stashed away some donor parts, primarily two sets of tiltrotor backpacks for 1:144 Gundam mecha from Bandai, which had been released recently. While these looked a little toy-like, these parts had the charm of coming with handed propellers and stub wings that would allow the engine nacelles to swivel.
The search for a suitable fuselage turned out to be a more complex safari than expected. My initial choice was the spoofy Italeri Mi-28 kit (I initially wanted a staggered tandem cockpit), but it turned out to be much too big for what I wanted to achieve. Then I tested a “real” Mi-28 (Dragon) and a Ka-50 (Italeri), but both failed for different reasons – the Mi-28 was too slender, while the Ka-50 had the right size – but converting it for my build would have been VERY complicated, because the engine nacelles would have to go and the fuselage shape between the cockpit and the fuselage section around the original engines and stub wings would be hard to adapt. I eventually bought an Italeri Ka-52 two-seater as fuselage donor.
In order to mount the four engines to the fuselage I’d need two pairs of wings of appropriate span – and I found a pair of 1:100 A-10 wings as well as the wings from an 1:72 PZL Iskra (not perfect, but the most suitable donor parts I could find in the junkyard). On the tips of these wings, the swiveling joints for the engine nacelles from the Bandai set were glued. While mounting the rear wings was not too difficult (just the Ka-52’s OOB stabilizers had to go), the front pair of wings was more complex. The reason: the Ka-52’s engines had to go and their attachment points, which are actually shallow recesses on the kit, had to be faired over first. Instead of filling everything with putty I decided to cover the areas with 0.5mm styrene sheet first, and then do cosmetic PSR work. This worked quite well and also included a cover for the Ka-52’s original rotor mast mount. Onto these new flanks the pair of front wings was attached, in a mid position – a conceptual mistake…
The cockpit was taken OOB and the aircraft’s nose received an additional thimble radome, reminiscent of the Mi-28’s arrangement. The radome itself was created from a German 500 kg WWII bomb.
At this stage, the mid-wing mistake reared its ugly head – it had two painful consequences which I had not fully thought through. Problem #1: the engine nacelles turned out to be too long. When rotated into a vertical position, they’d potentially hit the ground! Furthermore, the ground clearance was very low – and I decided to skip the Ka-52’s OOB landing gear in favor of a heavier and esp. longer alternative, a full landing gear set from an Italeri MiG-37 “Ferret E” stealth fighter, which itself resembles a MiG-23/27 landing gear. Due to the expected higher speeds of the vintoplan I gave the landing gear full covers (partly scratched, plus some donor parts from an Academy MiG-27). It took some trials to get the new landing gear into the right position and a suitable stance – but it worked. With this benchmark I was also able to modify the engine nacelles, shortening their rear ends. They were still very (too!) close to the ground, but at least the model would not sit on them!
However, the more complete the model became, the more design flaws turned up. Another mistake is that the front and rear rotors slightly overlap when in vertical position – something that would be unthinkable in real life…
With all major components in place, however, detail work could proceed. This included the completion of the cockpit and the sensor turrets, the Ka-52 cannon and finally the ordnance. Due to the large rotors, any armament had to be concentrated around the fuselage, outside of the propeller discs. For this reason (and in order to prevent the rear engines to ingest exhaust gases from the front engines in level flight), I gave the front wings a slightly larger span, so that four underwing pylons could be fitted, plus a pair of underfuselage hardpoints.
The ordnance was puzzled together from the Italeri Ka-52 and from an ESCI Ka-34 (the fake Ka-50) kit.
Painting and markings:
With such an exotic aircraft, I rather wanted a conservative livery and opted for a typical Soviet tactical four-tone scheme from the Eighties – the idea was to build a prototype aircraft from the state acceptance trials period, not a flashy demonstrator. The scheme and the (guesstimated) colors were transferred from a Soviet air force MiG-21bis of that era, and it consists of a reddish light brown (Humbrol 119, Light Earth), a light, yellowish green (Humbrol 159, Khaki Drab), a bluish dark green (Humbrol 195, Dark Satin Green, a.k.a. RAL 6020 Chromdioxidgrün) and a dark brown (Humbrol 170, Brown Bess). For the undersides’ typical bluish grey I chose Humbrol 145 (FS 35237, Gray Blue), which is slightly lighter and less greenish than the typical Soviet tones. A light black ink wash was applied and some light post-shading was done in order to create panels that are structurally not there, augmented by some pencil lines.
The cockpit became light blue (Humbrol 89), with medium gray dashboard and consoles. The ejection seats received bright yellow seatbelts and bright blue pads – a detail seen on a Mi-28 cockpit picture.
Some dielectric fairings like the fin tip were painted in bright medium green (Humbrol 101), while some other antenna fairings were painted in pale yellow (Humbrol 71).
The landing gear struts and the interior of the wells became Aluminum Metalic (Humbrol 56), the wheels dark green discs (Humbrol 30).
The decals were puzzled together from various sources, including some Begemot sheets. Most of the stencils came from the Ka-52 OOB sheet, and generic decal sheet material was used to mark the walkways or the rotor tips and leading edges.
Only some light weathering was done to the leading edges of the wings, and then the kit was sealed with matt acrylic varnish.
A complex kitbashing project, and it revealed some pitfalls in the course of making. However, the result looks menacing and still convincing, esp. in flight – even though the picture editing, with four artificially rotating proprotors, was probably more tedious than building the model itself!
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
The Douglas F3D Skyknight (later designated F-10 Skyknight) was a United States twin-engined, mid-wing jet fighter aircraft manufactured by the Douglas Aircraft Company in El Segundo, California. The F3D was designed as a carrier-based all-weather night fighter and saw service with the United States Navy and United States Marine Corps. The mission of the F3D-2 was to search out and destroy enemy aircraft at night.
The F3D was not intended to be a typical sleek and nimble dogfighter, but as a standoff night fighter, packing a powerful radar system and a second crew member. It originated in 1945 with a US Navy requirement for a jet-powered, radar-equipped, carrier-based night fighter. The Douglas team led by Ed Heinemann designed around the bulky air intercept radar systems of the time, with side-by-side seating for the pilot and radar operator. The result was an aircraft with a wide, deep, and roomy fuselage. Instead of ejection seats, an escape tunnel was used.
As a night fighter that was not expected to be as fast as smaller daylight fighters, the expectation was to have a stable platform for its radar system and the four 20 mm cannon mounted in the lower fuselage. The F3D was, however, able to outturn a MiG-15 in an inside circle. The fire control system in the F3D-1 was the Westinghouse AN/APQ-35.
The AN/APQ-35 was advanced for the time, a combination of three different radars, each performing separate functions: an AN/APS-21 search radar, an AN/APG-26 tracking radar, both located in the nose, and an AN/APS-28 tail warning radar. The complexity of this vacuum tube-based radar system, which was produced before the advent of semiconductor electronics, required intensive maintenance to keep it operating properly.
The F3D Skyknight was never produced in great numbers but it did achieve many firsts in its role as a night fighter over Korea. While it never achieved the fame of the North American F-86 Sabre, it did down several Soviet-built MiG-15s as a night fighter over Korea with only one air-to-air loss of its own against a Chinese MiG-15 on the night of 29 May 1953.
In the years after the Korean War, the F3D was gradually replaced by more powerful aircraft with better radar systems. The F3D's career was not over though; its stability and spacious fuselage made it easily adaptable to other roles. The Skyknight played an important role in the development of the radar-guided AIM-7 Sparrow missile in the 1950s which led to further guided air-to-air missile developments.
In 1954, the F3D-2M was the first U.S. Navy jet aircraft to be fitted with an operational air-to-air missile: the Sparrow I,an all weather day/night BVR missile that used beam riding guidance for the aircrew to control the flight of the missile. Only 38 aircraft (12 F3D-1Ms, and 16 F3D-2Ms) were modified to use the missiles, though.
One of the F3D's main flaws, which it shared with many early jet aircraft, was its lack of power and performance. Douglas tried to mend this through a radical redesign: The resulting F3D-3 was the designation assigned to a swept-winged version (36° sweep at quarter chord) of the Skyknight. It was originally to be powered by the J46 turbojet, rated at 4.080 lbf for takeoff, which was under development but suffered serious trouble.
This led to the cancellation of the J46, and calculated performance of the F3D-3 with the substitute J34 was deemed insufficient. As an alternative the aircraft had to be modified to carry two larger and longer J47-GE-2 engines, which also powered the USN's FJ-2 "Fury" fighter.
This engine's thrust of 6.000 pounds-force (27 kN) at 7,950 rpm appeared sufficient for the heavy, swept-wing aircraft, and in 1954 an order for 287 production F3D-3s was issued, right time to upgrade the new type with the Sparrow I.
While the F3D-3's outline resembled that of its straight wing predecessors, a lot of structural changes had to be made to accommodate the shifted main wing spar, and the heavy radar equipment also took its toll: the gross weight climbed by more than 3 tons, and as a result much of the gained performance through the stronger engines and the swept wings was eaten away.
Maximum internal fuel load was 1.350 US gallons, plus a further 300 in underwing drop tanks. Overall wing surface remained the same, but the swept wing surfaces reduced the wing span.
In the end, thrust-to-weight ratio was only marginally improved and in fact, the F3D-3 had a lower rate of climb than the F3D-2, its top speed at height was only marginally higher, and stall speed climbed by more than 30 mph, making carrier landings more complicated.
It's equipment was also the same - the AN/APQ-35 was still fitted, but mainly because the large radar dish offered the largest detection range of any carrier-borne type of that time, and better radars that could match this performance were still under construction. Anyway, the F3D-3 was able to carry Sparrow I from the start, and this would soon be upgraded to Sparrow III (which became the AIM-7), and it showed much better flight characteristics at medium altitude.
Despite the ,many shortcomings the "new" aircraft represented an overall improvement over the F3D-2 and was accepted for service. Production of the F3D-3 started in 1955, but technology advanced quickly and a serious competitor with supersonic capability appeared with the McDonnell F3H Demon and the F4D Skyray - much more potent aircraft that the USN immediately preferred to the slow F3Ds. As a consequence, the production contract was cut down to only 102 aircraft.
But it came even worse: production of the swept wing Skyknight already ceased after 18 months and 71 completed airframes. Ironically, the F3D-3's successor, the F3H and its J40 engine, turned out to be more capricious than expected, which delayed the Demon's service introduction and seriously hampered its performance, so that the F3D-3 kept its all weather/night fighter role until 1960, and was eventually taken out of service in 1964 when the first F-4 Phantom II fighters appeared in USN service.
In 1962 all F3D versions were re-designated into F-10, the swept wing F3D-3 became the F-10C. The straight wing versions were used as trainers and also served as an electronic warfare platform into the Vietnam War as a precursor to the EA-6A Intruder and EA-6B Prowler, while the swept-wing fighters were completely retired as their performance and mission equipment had been outdated. The last F-10C flew in 1965.
General characteristics
Crew: two
Length: 49 ft (14.96 m)
Wingspan: 42 feet 5 inches (12.95 m)
Height: 16 ft 1 in (4.90 m)
Wing area: 400 ft² (37.16 m²)
Empty weight: 19.800 lb (8.989 kg)
Loaded weight: 28,843 lb (13.095 kg)
Max. takeoff weight: 34.000 lb (15.436 kg)
Powerplant:
2× General Electric J47-GE-2 turbojets, each rated at 6.000 lbf (26,7 kN) each
Performance
Maximum speed: 630 mph (1.014 km/h) at sea level, 515 mph (829 km/h) t (6,095 m)
Cruise speed: 515 mph (829 km/h) at 40,000 feet
Stall speed: 128 mph (206 km/h)
Range: 890 mi (1.433 km) with internal fuel; 1,374 mi, 2,212 km with 2× 300 gal (1.136 l) tanks
Service ceiling: 43.000 ft (13.025 m)
Rate of climb: 2,640 ft/min (13,3 m/s)
Wing loading: 53.4 lb/ft² (383 kg/m²)
Thrust/weight: 0.353
Armament
4× 20 mm Hispano-Suiza M2 cannon, 200 rpg, in the lower nose
Four underwing hardpoints inboard of the wing folding points for up to 4.000 lb (1.816 kg)
ordnance, including AIM-7 Sparrow air-to-air missiles, 11.75 in (29.8cm) Tiny Tim rockets, two
150 or 300 US gal drop tanks or bombs of up to 2.000 lb (900 kg) caliber, plus four hardpoints
under each outer wing for a total of eight 5" HVARs or eight pods with six 2 3/4" FFARs each
The kit and its assembly:
Another project which had been on the list for some years now but finally entered the hardware stage. The F3D itself is already a more or less forgotten aircraft, and there are only a few kits available - there has been a vacu kit, the Matchbox offering and lately kits in 1:72 and 1:48 by Sword.
The swept wing F3D-3 remained on the drawing board, but would have been a very attractive evolution of the tubby Skyknight. In fact, the swept surfaces resemble those of the A3D/B-66 a Iot, and this was the spark that started the attempt to build this aircraft as a model through a kitbash.
This model is basically the Matchbox F3D coupled with wings from an Italeri B-66, even though, being much bigger, these had to be modified.
The whole new tail is based on B-66 material. The fin's chord was shortened, though, and a new leading edge (with its beautiful curvature) had to be sculpted from 2C putty. The vertical stabilizers also come from the B-66, its span was adjusted to the Skyknight's and a new root intersection was created from styrene and putty, so that a cross-shaped tail could be realized.
The tail radar dish was retained, even though sketches show the F3D-3 without it.
The wings were take 1:1 from the B-66 and match well. They just had to be shortened, I set the cut at maybe 5mm outwards of the engine pods' attachment points. They needed some re-engraving for the inner flaps, as these would touch the F3D-3's engines when lowered, but shape, depth and size are very good for the conversion.
On the fuselage, the wings' original "attachment bays" had to be filled, and the new wings needed a new position much further forward, directly behind the cockpit, in order to keep the CoG.
One big issue would be the main landing gear. On the straight wing aircraft it retracts outwards, and I kept this arrangement. No detail of the exact landing gear well position was available to me, so I used the Matchbox parts as stencils and placed the new wells as much aft as possible, cutting out new openings from the B-66 wings.
The OOB landing gear was retained, but I added some structure to the landing gear wells with plastic blister material - not to be realistic, just for the effect. A lot of lead was added in the kit's nose section, making sure it actually stands on the front wheel.
The Matchbox Skyknight basically offers no real problems, even though the air intake design leaves, by tendency some ugly seams and even gaps. I slightly pimped the cockpit with headrests, additional gauges and a gunsight, as well as two (half) pilot figures. I did not plan to present the opened cockpit and the bulbous windows do not allow a clear view onto the inside anyway, so this job was only basically done. In fact, the pilots don't have a lower body at all...
Ordnance comprises of four Sparrow III - the Sparrow I with its pointed nose could have been an option, too, but I think at the time of 1960 the early version was already phased out?
Painting and markings:
This was supposed to become a typical USN service aircraft of the 60ies, so a grey/white livery was predetermined. I had built an EF-10B many years ago from the Matchbox kit, and the grey/white guise suits the Whale well - and here it would look even better, with the new, elegant wings.
For easy painting I used semi matt white from the rattle can on the lower sides (painting the landing gear at the same time!), and then added FS 36440 (Light Gull Grey, Humbrol 129) with a brush to the upper sides. The radar nose became semi matt black (with some weathering), while the RHAWS dish was kept in tan (Humbrol 71).
In order to emphasize the landing gear and the respective wells I added a red rim to the covers.
The cockpit interior was painted in dark grey - another factor which made adding too many details there futile, too...
The aircraft's individual marking were to be authentic, and not flamboyant. In the mid 50ies the USN machines were not as colorful as in the Vietnam War era, that just started towards the 60ies.
The markings I used come primarily from an Emhar F3H Demon, which features no less than four(!) markings, all with different colors. I settled for a machine of VF-61 "Jolly Rogers", which operated from the USS Saratoga primarily in the Mediterranean from 1958 on - and shortly thereafter the unit was disbanded.
I took some of the Demon markings and modified them with very similar but somewhat more discrete markings from VMF-323, which flew FJ-4 at the time - both squadrons marked their aircraft with yellow diamonds on black background, and I had some leftover decals from a respective Xtradecal sheet in the stash.
IMHO a good result with the B-66 donation parts, even though I am not totally happy with the fin - it could have been more slender at the top, and with a longer, more elegant spine fillet, but for that the B-66 fin was just too thick. Anyway, I am not certain if anyone has ever built this aircraft? I would not call the F3D-3 elegant or beautiful, but the swept wings underline the fuselage's almost perfect teardrop shape, and the thing reminds a lot of the later Grumman A-6 Intruder?
Some background:
The Leyland “Type D” was one of several armoured vehicle types designed in 1940 on the orders of Lord Beaverbrook and Admiral Sir Edward Evans, as a part of the hasty measures taken by the British Government following the Dunkirk evacuation and the threat of invasion.
The “Type D” was a heavy scout car, intended to replace the Lanchester 6x4 and Rolls-Royce 4x2 armoured cars, which dated back to the WWI era and the early interwar period. While they were reliable vehicles and still in active service, their off-road capabilities, armament and armour left a lot to be desired – esp. in the face of the modern German army and its effective equipment.
Certainly inspired by the German SdKfz. 231/232 family of heavy 8x8 armoured reconnaissance vehicles, Leyland added a fourth axle to better distribute the vehicle’s weight and a drivetrain to the front axle to a modified “Retriever” 3-ton 6x4 lorry chassis, resulting in a 6x8 layout. The rigid axles were mounted on leaf springs front and rear with hydraulic dampers, both front axles were steerable. The engine, a water-cooled 6-litre, 4-cylinder overhead camshaft petrol engine with 73 hp, was, together with the gearbox, relocated to the rear, making room for a fully enclosed crew compartment in the front section with two access doors in the vehicle’s flanks. The crew consisted of four, with the driver seat at the front. The gunner and commander (the commander at the right and gunner at the left) stood behind them into the turret or were sitting on simple leather belts, and behind them was a working station for a radio operator.
The tall, cylindrical turret was welded and electrically traversed, but it lacked a commander cupola. All the armament was mounted in the turret and consisted of a quick-firing two-pounder (40mm) cannon and a coaxial 7.92 mm Besa machine gun. The faceted hull was, like the turret, welded from homogenous steel armour plates, and a straightforward design. Maximum armour thickness was 15 mm at the front, 8 mm on the sides, and 10 mm on the back, with 6 mm and 5 mm of armour on the top and bottom respectively. It had been designed to provide protection from small arms fire and HE fragments, but it was ineffective against heavier weapons. This armour was a compromise, since better protection had resulted in a higher weight and overstrained the Type D’s lorry chassis and engine. The armoured cabin was mounted to the chassis at only four points - front, rear and sides - to give some flexibility but with precautions against excessive movement.
The Type D’s prototype was designed, built, tested and approved just within 3 months. Deliveries of the first production vehicles commenced only 2 months later, just in time to become involved in the North Africa campaign. All early production vehicles were immediately sent to Egypt and took part in Operation Compass and the Western Desert Campaign.
It comes as no surprise that the Type D – developed and produced in a hurry and thrown into battle in an environment it had not been designed for – initially failed, and even when the worst deficits had been rectified the Type D’s performance remained mediocre at best. The biggest problems concerned the engine’s cooling system, its low power output and therefore poor speed, and the vehicle’s poor off-road performance, esp. on soft ground like sand. The vehicle’s suspension was quickly overburdened in heavy terrain and the tall turret placed its center of gravity very high, making the Type D prone to topple over to a side when slope angles were taken too slightly. Poor cabin ventilation was another problem that became even more apparent under the African sun.
Initial losses were high: more than half of the Type Ds lost in North Africa during the early months of 1941 were abandoned vehicles which got stuck or had to be left behind due to mechanical failures. The rest had fallen easy prey to German and Italian attacks – the Type D was not only very vulnerable even to the Panzer II’s 20 mm autocannon, its thin top armour made it in the open desert also very vulnerable to air attacks: German MG 131 machine gun rounds easily punched the vehicle’s shell, and even lighter weapons were a serious threat to the tall Type D.
As soon as the first sobering field reports returned back to Great Britain, Leyland immediately devised major improvements. These were introduced to newly produced Mk. II vehicles and partly retrofitted to the early Mk. I vehicles in field workshops. One of these general improvements were new desert wheels and tires, which were considerably wider than the original lorry wheels and featured a flat pattern that better distributed the vehicle’s weight on soft and unstable ground, what considerably improved the Type D’s performance on sand. A kit with a more effective radiator and a bigger engine cooling system was quickly developed and sent to the units in Africa, too. The kit did not fully solve the overheating problems of the early Mk. I, but improved the situation. From the outside, retrofitted Type Ds could be recognized by a raised engine cover with enlarged air intakes. Due to the limits of the chassis the armour level was not improved, even though the crews and field workshops tried to attach improvised additional protective measures like spare track links from tanks or sandbags – with mixed results, though. The armament was not updated either, except for an optional mount for an additional light anti-aircraft machine gun on the turret and kits for smoke dischargers on the turret’s flanks.
The Type D Mk. II, which gradually replaced the Mk. I on the production lines from March 1941 on, furthermore received a different and much more effective powerplant, a Leyland 7-litre six-cylinder diesel engine with an output of 95 hp (70 kW). It not only provided more power and torque, markedly improving the vehicle’s off-road performance, it also had a better fuel economy than the former lorry petrol engine (extending range by 25%), and the fuel itself was less prone to ignite upon hits or accidents.
During its short career the Leyland Type D was primarily used in the North African Campaign by the 11th Hussars and other units. After the invasion of Italy, a small number was also used in the Southern European theatre by reconnaissance regiments of British and Canadian infantry divisions. A few vehicles were furthermore used for patrol duty along the Iran supply route.
However, the Type D was not popular, quickly replaced by smaller and more agile vehicles like the Humber scout car, and by 1944 outdated and retired. Leyland built a total of 220 Type Ds of both versions until early 1943, whilst an additional 86 Mk. IIs were built by the London, Midland and Scottish Railway's Derby Carriage Works.
Specifications:
Crew: Four (commander, gunner, driver, co-driver/radio operator/loader)
Weight: 8.3 tons
Length: 20 ft 5 in (6,30 m)
Width: 7 ft 5 in (2,27 m)
Height: 9 ft 2¾ in (2,81 m)
Ground clearance: 12 in (30.5 cm)
Turning radius: 39 ft (12 m)
Suspension: Wheel, rigid front and rear axles;
4x8 rear-wheel drive with selectable additional 6x8 front axle drive
Fuel capacity: 31 imp gal (141 litres)
Armour:
5–15 mm (0.2 – 0.6 in)
Performance:
Maximum road speed: 35 mph (56 km/h)
Sustained road speed: 30 mph (48 km/h)
Cross country speed: up to 20 mph (32 km/h)
Operational range: 250 mi (400 km)
Power/weight: 11,44 hp/ton
Engine:
1× Leyland 7-litre six-cylinder diesel engine, 95 hp (70 kW)
Transmission:
4-speed, with a 2-speed auxiliary box
Armament:
1× QF Two-pounder (40 mm/1.57 in) cannon with 94 rounds
1× 7.92 mm Besa machine gun mounted co-axially with 2.425 rounds
2-4× smoke dischargers, mounted on the turret
The kit and its assembly:
This fictional British WWII vehicle might look weird, but it has a real-world inspiration: the Marmon Herrington Mk. VI armoured heavy scout car. This vehicle only existed as a prototype and is AFAIK still preserved in a museum in South Africa – and upon a cursory glance it looks like an SdKfz. 232 with the shrunk turret from a “Crusader” cruiser tank with a short-barreled six pounder gun. It looks like a fake! Another reason for this build was a credible “canvas” for the application of the iconic “Caunter Scheme”, so that I placed the Type D in a suitable historic time frame.
The Type D was not supposed to be a truthful Marmon Herrington Mk. VI copy, so I started with a 1:72 “First to Fight” SdKfz. 232. This is a simple and sturdy tabletop wargaming model, but it is quite accurate, goes together well, is cheap and even comes with a metal gun barrel. It’s good value for the money, even though the plastic is a little thick and soft.
However, from this basis things changed in many ways. I initially wanted to shorten the hull, but the new wheels (see below) made this idea impossible. Nevertheless, the front glacis plate was completely re-modeled with 2C putty in the style of the Humber scout car, and the crew cabin was extended backwards with the same method. New observation slits had to be scratched with styrene profile material. The engine bay received a raised cover, simulating extra air intakes. The turret was replaced with a resin piece for an A13 “Valentine” Mk.III tank (S&S Models), which had a perfect size and even came with a suitable gun.
The suspension was taken OOB, but the wheels were replaced with two aftermarket resin sets (Silesian Models) with special Allied desert wheels/tires from 1941, they originally belong to a Chevrolet truck and are markedly bigger and wider than the SdKfz. 232 wheels. However, they had to be modified to match the rest of the suspension, and their size necessitated a thorough modification of the mudguards. They were not only mounted 1mm higher on the flanks, their sides, normally consisting of closed skirts, were fully opened to make sufficient room for the new wheels to change the vehicle’s look. They were furthermore separated into four two-wheel covers and their front and rear ends were slightly bent upwards. Sufficient space for the side doors had to be made, too. The spare wheels that came with the respective sets were mounted to the front (again Humber-style) and onto the engine bay cover, under a scratched tarpaulin (made from paper tissue drenched with white glue).
To conceal the SdKfz. 232 heritage even more I added more equipment to the vehicle’s flanks. Tool boxed were added to the engine bay’s flanks, some more tools to the fenders, scratched tarpaulin rolls above the side doors and I tried to scratch PSP plates with aluminum foil rubbed against a flight stand diorama floor made from PSP. Not perfect, but all the stuff livens the Type D up. A new exhaust (IIRC from a Panzer IV) was added to the rear and bumpers scratched from wire and mounted low unto the hull.
Painting and markings:
Finally, the British, so-called “Caunter Scheme”, a great source of misinterpretation not only in museums but also by modelers who have painted their British tanks in dubious if not garish colors. I do not claim that my interpretation of the colors is authentic, but I did some legwork and tried to improvise with my resources some tones that appear plausible (at least to me), based on descriptions and contemporary references.
The pattern itself was well defined for each vehicle type, and I adapted a M3 “Stuart” pattern for the model. All three basic colors, “Light Stone”, “Silver Grey” and “Slate”, were guesstimated. “Slate” is a relatively dark and greenish tone, and I chose Tamiya XF-65 (Field Grey). “Light Stone” is rather yellow-ish, light sand tone, and I used Humbrol 103 (Cream). Some sources suggest the use of Humbrol 74 (linen) as basis, but that is IMHO too yellow-ish and lacks red. The most obscure tone is “Silver Grey”, and its depictions range from a pale and dull light olive drab over blue-grey, greenish grey to bright light blue and even turquoise. In fact, this tone must have had a greenish-blue hue, and so I mixed Humbrol 145 (FS 35237) with maybe Humbrol 94 in a 3:1 ratio to achieve an “in between” tone, which is hard to describe - maybe as a greenish sand-grey? A funny effect of the colors in direct contrast is that the XF-65 appeared with an almost bluish hue! Overall, the choice of colors seems to work, though, and the impression is good.
Painting was, as usual, done with brushes and, due to the vehicle’s craggy shape, free-handedly. After basic painting the model received a light washing with a mix of black ink and brown, and some post-shading was done with light grey (Revell 75) and Hemp (Humbrol 168). Decals came from the scrap box, and before an overall protective coat of matt acrylic varnish was applied, the model received an additional treatment with thinned Revell 82 (supposed to be RAF Dark Earth but it is a much paler tone).
A more demanding build than one would expect at first sight. The SdKafz. 232 is unfortunately still visible, but the desert wheels, including the spare wheels, change the look considerably, and the British replacement turret works well, too. Using the tabletop model basis was not a good move, though, because everything is rather solid and somewhat blurry, esp. the many molded surface details, which suffered under the massive body work. On the other side, the Counter Scheme IMHO turned out well, esp. the colors, even though the slender hull made the adaptation of the pattern from a (much shorter) tank not easy. But most of the critical areas were hidden under extra equipment, anyway. 😉
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background
The Hütter Hü 324 was the final development stage of BMW's 'Schnellbomber II' project, which had been designed around two mighty BMW 109-028 turboprops.
These innovative engines had been developed since February 1941, but did not receive fullest attention due to the more promising jet engines. Anyway, it soon became clear that no jet engine with the potential to drive a bomber-sized aircraft - considering both performance and fuel consumption - would be available on short notice. Consequently, the BMW 028 received more attention from the RLM from 1943 on.
Biggest pressure came from the fact that several obsolete types like the He 111 or Do 217 had to be replaced, and the ill-fated and complicated He 177 was another candidate with little future potential, since four-engined variants had been rejected. Additionally, the promising and ambitious Ju 288 had been stillborn, and a wide gap for a tactical medium bomber opned in the Luftwaffe arsenal.
In may 1943, new requirements for a medium bomber were concretised. Main objective was to design a fast, twin-engined bomber, primarily intended for horizontal bombing, which would be able to carry a 3.000 kilograms (6.600 lbs) payload at 800 kilometres per hour in a 1.500km (900 ml) radius. The plane had to be fast and to operate at great heights, limiting the threat of interception.
Since many major design bureaus’ resources were bound, Ulrich W. Hütter, an Austro-German engineer and university professor got involved in the RLM project and BMW's design team which had been working on appropriate designs. In July 1943, Hütter moved to the Research Institute of the Graf Zeppelin works (FGZ) convened in Ruit near Stuttgart, and as head of the engineering department he was also involved in the development of manned missiles, underwater towing systems and the Hü 211 high altitude interceptor/reconnaissance plane.
Under Ulrich W. Hütter and his brother, Wolfgang Hütter, BMW's original and highly innovative (if not over-ambitious) Schnellbomber designs gave way to a more conservative layout: the so-called BMW-Hütter Hü 324.
The plane was conventional in layout, with high, unswept laminar profile wings and a high twin tail. The engines were carried in nacelles slung directly under the wings. The nose wheel retracted rearwards, while the main wheels retracted forwards into the engine nacelles, rotating 90°, and laying flat under the engines. The crew of four (pilot, co-pilot/bombardier, navigator/radar operator and gunner/radio operator) were accommodated in a compact, pressurised "glass house" cockpit section – a popular design and morale element in Luftwaffe bomber and reconnaissance aircraft of that era.
Construction of the first prototype started in February 1945, and while the aircraft cell made good progress towards the hardware stage, the development suffered a serious setback in March when BMW admitted that the 109-028 turboprop engine would not be ready in time. It took until August to arrive, and the prototype did not fly until 6 November 1945.
Initial flight test of the four A-0 pre-production samples of the Hü 324 went surprisingly well. Stability and vibration problems with the aircraft were noted, though. One major problem was that the front glas elements were prone to crack at high speeds, and it took a while to trace the troubole source back to the engines and sort these problems out. Among others, contraprops were fitted to counter the vibration problems, the engines' power output had to be reduced by more than 500 WPS and the tail fins had to be re-designed.
Another innovative feature of this bomber was the “Elbegast” ground-looking navigation radar system, which allowed identification of targets on the ground for night and all-weather bombing. It was placed in a shallow radome behind the front wheel. Performance-wise, the system was comparable to the USAAF’s H2X radar, and similarly compact. Overall, the Hü 324 showed much promise and a convincing performance, was easy to build and maintain, and it was immediately taken to service.
Despite the relatively high speed and agility for a plane of its size, the Hü 324 bore massive defensive armament: the original equipment of the A-1 variant comprised two remotely operated FDL 131Z turrets in dorsal (just behind the cockpit) and ventral (behind the bomb bay) position with 2× 13 mm MG 131 machine guns each, plus an additional, unmanned tail barbette with a single 20mm canon. All these guns were aimed by the gunner through a sighting station at the rear of the cockpit, effectively covering the rear hemisphere of the bomber.
After first operational experience, this defence was beefed up with another remotely-controlled barbette with 2× 13 mm MG 131 machine guns under the cockpit, firing forwards. The reason was similar to the introduction of the chin-mounted gun turret in the B-17G: the plane was rather vulnerable to frontal attacks. In a secondary use, the chin guns could be used for strafing ground targets. This update was at first called /R1, but was later incorporated into series production, under the designation A-2.
Effectively, almost 4.500kg ordnance could be carried in- and externally, normally limited to 3.000kg in the bomb bay in order to keep the wings clean and reduce drag, for a high cruising speed. While simple iron bombs and aerial mines were the Hü 324's main payload, provisions were made to carry guided weapons like against small/heavily fortified targets. Several Rüstsätze (accessory packs) were developed, and the aircraft in service received an "/Rx" suffix to their designation, e. g. the R2 Rüstsatz for Fritz X bomb guidance or the R3 set for rocket-propelled Hs 293 bombs.
Trials were even carried out with a semi-recessed Fieseler Fi 103 missile, better known as the V1 flying bomb, hung under the bomber's belly and in an enlarged bomb bay, under deletion of the ventral barbette.
The Hü 324 bomber proved to be an elusive target for the RAF day and night fighters, especially at height. After initial attacks at low level, where fast fighters like the Hawker Tempest or DH Mosquito night fighters were the biggest threat, tactics were quickly changed. Approaching at great height and speed, bombing was conducted from medium altitudes of 10,000 to 15,000 feet (3,000 to 4,600 m).
The Hü 324 proved to be very successful, striking against a variety of targets, including bridges and radar sites along the British coast line, as well as ships on the North Sea.
From medium altitude, the Hü 324 A-2 proved to be a highly accurate bomber – thanks to its "Elbegast" radar system which also allowed the planes to act as pathfinders for older types or fast bombers with less accurate equipment like the Ar 232, Ju 388 or Me 410. Loss rates were far lower than in the early, low-level days, with the Hü 324 stated by the RLM as having the lowest loss rate in the European Theatre of Operations at less than 0.8 %.
BMW-Hütter Ha 324A-2, general characteristics:
Crew: 4
Length: 18.58 m (60 ft 10 in)
Wingspan: 21.45 m (70 ft 4½ in )
Height: 4.82 m (15 ft 9½ in)
Wing area: 60.80 m² (654.5 ft.²)
Empty weight: 12,890 kg (28,417 lb)
Loaded weight: 18,400 kg (40,565 lb)
Max. take-off weight: 21,200 kg (46,738 lb)
Performance:
Maximum speed: 810 km/h (503 mph) at optimum height
Cruising speed: 750 km/h (460 mph) at 10,000 m (32,800 ft)
Range: 3.500 km (2.180 ml)
Service ceiling: 11.400 m (37.500 ft)
Rate of climb: 34.7 m/s (6,820 ft/min)
Powerplant:
Two BMW 109-028 ‘Mimir’ turboprop engines, limited to 5.500 WPS (4.044 WkW) each plus an additional residual thrust of 650kg (1.433 lb), driving four-bladed contraprops.
Armament:
6× 13mm MG 131 in three FDL 131Z turrets
1× 20mm MG 151/20 in unmanned/remote-controlled tail barbette
Up to 4.500 kg (9.800 lbs) in a large enclosed bomb-bay in the fuselage and/or four underwing hardpoints.
Typically, bomb load was limited to 3.000 kg (6.500 lbs) internally.
The kit and its assembly
This project/model belongs in the Luft '46 category, but it has no strict real world paradigm - even though Luftwaffe projects like the Ju 288, the BMW Schnellbomber designs or Arado's E560/2 and E560/7 had a clear influence. Actually, “my” Hü 324 design looks pretty much like a He 219 on steroids! Anyway, this project was rather inspired by a ‘click’ when two ideas/elements came together and started forming something new and convincing. This is classic kitbashing, and the major ingredients are:
● Fuselage, wings, landing gear and engine nacelles from a Trumpeter Ilyushin Il-28 bomber
● Nose section from an Italeri Ju 188 (donated from a friend, leftover from his Ju 488 project)
● Stabilisers from an Italeri B-25, replacing the Il-28’s swept tail
● Contraprops and fuselage barbettes from a vintage 1:100 scale Tu-20(-95) kit from VEB Plasticart (yes, vintage GDR stuff!)
Most interestingly, someone from the Netherlands had a similar idea for a kitbashing some years ago: www.airwar1946.nl/whif/L46-ju588.htm. I found this after I got my idea for the Hü 324 together, though - but its funny to see how some ideas manifest independently?
Building the thing went pretty straightforward, even though Trumpeter's Il-28 kit has a rather poor fit. Biggest problem turned out to be the integration of the Ju 188 cockpit section: it lacks 4-5mm in width! That does not sound dramatic, but it took a LOT of putty and internal stabilisation to graft the parts onto the Il-28's fuselage.
The cockpit was completely re-equipped with stuff from the scrap box, and the main landing gear received twin wheels.
The chin turret was mounted after the fuselage was complete, the frontal defence had been an issue I had been pondering about for a long while. Originally, some fixed guns (just as the Il-28 or Tu-16) had been considered. But when I found an old Matchbox B-17G turret in my scrap box, I was convinced that this piece could do literally the same job in my model, and it was quickly integrated. As a side effect, this arrangement justifies the bulged cockpit bottom well, and it just looks "more dangerous".
Another task was the lack of a well for the front wheel, after the Il-28 fuselage had been cut and lacked the original interior. This was also added after the new fuselage had been fitted together, and the new well walls were built with thin polystyrene plates. Not 100% exact and clean, but the arrangement fits the bill and takes the twin front wheel.
The bomb bay was left open, since the Trumpeter kit offers a complete interior. I also added four underwing hardpoints for external loads (one pair in- and outboard of the engine nacelles), taken from A-7 Corsair II kits, but left them empty. Visually-guided weapons like the 'Fritz X' bomb or Hs 293 missiles would IMHO hardly make sense during night sorties? I also did not want to overload the kit with more and more distracting details.
Painting
Even though it is a whif I wanted to incorporate some serious/authentic late WWII Luftwaffe looks. Since the Hü 324 would have been an all-weather bomber, I went for a night bomber livery which was actually used on a He 177 from 2./KG 100, based in France: Black (RLM 22, I simply used Humbrol 33) undersides, and upper surfaces in RLM 76 (Base is Humbrol 128, FS36320, plus some added areas with Testors 2086, the authentic tone which is a tad lighter, but very close) with mottles in RLM 75 (Grauviolett, Testors 2085, plus some splotches of Humbrol 27, Medium Sea Grey), and some weathering through black ink, some enhanced panel lines (with a mix of matte varnish and Panzergrau), as well as some dry painting all over the fuselage.
All interior surfaces were painted in RLM 66 (Schwarzgrau/Black Grey, Testors 2079), typical for German late WWII aircraft. Propeller spinners were painted RLM 70 (Schwarzgrün) on the front half, the rear half was painted half black and half white.
Pretty simple scheme, but it looks VERY cool, esp. on this sleek aircraft. I am very happy with this decision, and I think that this rather simple livery is less distracting from the fantasy plane itself, making the whif less obvious. In the end, the whole thing looks a bit grey-in-grey, but that spooky touch just adds to the menacing look of this beefy aircraft. I think it would not look as good if it had been kept in daytime RLM 74/75/76 or even RLM 82/83/76?
Markings and squadron code were puzzled together from an Authentic Decal aftermarket sheet for a late He 111 and individual letters from TL Modellbau. The "F3" code for the fictional Kampfgruppe (KG) 210 is a random choice, "EV" marks the individual plane, the red "E" and the control letter "V" at the end designate a plane from the eleventh squadron of KG 210. My idea is that the Hü 324 would replace these machines and literally taking their place in the frontline aviaton units. So I tried to keep in line with the German aircraft code, but after all, it's just a whif...
So, after some more surgical work than expected, the Hü 324 medium bomber is ready to soar!
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
The Gloster Glaive was basically a modernized and re-engined variant of the successful, British-built Gloster Gladiator (or Gloster SS.37), the RAF’s final biplane fighter to enter service. The Gladiator was not only widely used by the RAF at the dawn of WWII and in almost every theatre of operations, but also by many other nations. Operators included Norway, Belgium, Sweden, Greece, Latvia, Lithuania or Nationalist China, and while the RAF already opted for more modern monoplanes, Gloster saw the opportunity to sell an updated Gladiator to countries which were not as progressive.
Originally designated Gladiator Mk. IV, the machine received many aerodynamic refinements and the motor was changed from a draggy radial to a liquid-cooled inline engine. The latter was the new Rolls Royce Peregrine, a development of the Kestrel. It was, in its original form, a 21-litre (1,300 cu in) liquid-cooled V-12 aero engine ), delivering 885-horsepower (660 kW). The engine was housed under a streamlined cowling, driving a three blade metal propeller, and was coupled with a ventral radiator bath, reminiscent of the Hawker Fury biplane’s arrangement.
Structural improvements included an all-metal monocoque fuselage and stabilizers, as well as new wings and streamlined struts with reduced bracing. The upper wing was enlarged and of all-metal construction, too, while the lower wings were reduced in span and area, almost resulting in a sesquiplane layout. The total wing area was only marginally reduced, though.
The fixed landing gear was retained, but the main wheels were now covered with spats. The pilot still sat in a fully enclosed cockpit, the armament consisted of four machine guns, similar to the Gladiator. But for the Glaive, all Browning machine guns were synchronized and mounted in the fuselage: one pair was placed on top of the cowling, in front of the cockpit. Another pair, much like the Gladiator’s arrangement was placed in the fuselage flanks, below the exhaust outlets.
Compared with the Gladiator, the design changes were so fundamental that Gloster eventually decided to allocate a separate designation – also with a view to the type’s foreign marketing, since a new aircraft appeared more attractive than another mark of a pre-war design. For the type’s virgin flight in late 1938 the name “Glaive” was unveiled to the public, and several smaller European air forces immediately showed interest, including Greece, Croatia, Turkey, Portugal and Egypt.
Greece was one of the initial customers, and the first of a total of 24 aircraft for the Hellenic Air Force was delivered in early 1939, with 24 more on order (which were never delivered, though). The initial batch arrived just in time, since tension had been building between Greece and Italy since 7 April 1939, when Italian troops occupied Albania. On 28 October 1940, Italy issued an ultimatum to Greece, which was promptly rejected. A few hours later, Italian troops launched an invasion of Greece, initiating the Greco-Italian War.
The Hellenic Gloster Glaives were split among three Mirae Dioxeos (Fighter Squadrons): the 21st at Trikala, 22nd at Thessaloniki and 23rd at Larissa. When Italy attacked in October 1940, the British fighter was, together with the PZL 24, the Greeks' only modern type in adequate numbers. However, by late 1940, the Gloster Glaive was already no longer a front-runner despite a powerful powerplant and satisfactory armament. It had no speed advantage over the Fiat Cr.42 nor could it outfly the nimble Italian biplane, and it was much slower than the Macchi MC.200 and the Fiat G.50 it was pitted against. Its agility was the only real advantage against the Italian fighters, whose reliance on the slow firing Breda-SAFAT 12.7mm machine guns proved detrimental.
Anyway, on 5 April 1941, German forces invaded Greece and quickly established air superiority. As the Allied troops retreated, British and Hellenic forces covered them, before flying to Crete during the last week of April. There, the refugee aircraft recorded a few claims over twin-engine aircraft before being evacuated to Egypt during the Battle of Crete.
Overall, the Glaives performed gallantly during the early period of the conflict, holding their own against impossible numerical odds and despite the fact that their main target were enemy bombers which forced them to fight at a disadvantage against enemy fighters. Italian claims of easy superiority over the Albanian front were vastly over-rated and their kill claims even exceeded the total number of operational fighters on the Greek side. Total Greek fighter losses in combat came to 24 a/c with the Greek fighter pilots claiming 64 confirmed kills and 24 probables (about two third bombers).
By April 1941, however, lack of spares and attrition had forced the Hellenic Air Force to merge the surviving seven Glaives with five leftover PZL.24s into one understrength squadron supported by five Gloster Gladiators Mk I & II and the two surviving MB.151s. These fought hopelessly against the Luftwaffe onslaught, and most aircraft were eventually lost on the ground. None of the Hellenic Gloster Glaives survived the conflict.
General characteristics:
Crew: two
Length: 8.92m (29 ft 3 in)
Wingspan: 34 ft 0 in (10.36 m)
Height: 11 ft 9 in (3.58 m)
Wing area: 317 ft² (29.4 m²)
Empty weight: 1,295 kg (2,855 lb)
Max takeoff weight: 1,700 kg (3,748 lb)
Powerplant:
1× Rolls Royce Peregrine II liquid-cooled V12 inline engine, rated at 940 hp (700 kw)
Performance:
Maximum speed: 405 km/h (252 mph; 219 kn) at 4,400 m (14,436 ft)
Cruise speed: 345 km/h (214 mph; 186 kn)
Stall speed: 60 mph (52 knots, 96 km/h)
Range: 373 mi (600 km; 324 nmi)
Endurance: 2 hours
Service ceiling: 10,600 m (34,800 ft)
Rate of climb: 2,982 ft/min (15.15 m/s)
Time to altitude: 10.000 ft (3.050 m) in 3 minutes 20 seconds
Armament:
4× 0.303 calibre (7.7 mm) M1919 Browning machine guns in the fuselage
Provisions for 6× 10 kg (22 lb) or 4x 20 kg (44 lb) bombs under the lower wings
The kit and its assembly:
The fictional Gloster Glaive started quite simple with the idea of replacing the Gladiator’s radial with an inline engine. But this soon did not appear enough for an update – the Peregrine hardly delivered much more power than the former Mercury, so I considered some structural updates, too. Most of them comprised the replacement of former fabric-covered structures, and this led conceptually to a kitbash with only some Gladiator fuselage and tail parts left.
The basis is (once more) the very nice Matchbox Gloster Gladiator, but it was heavily modified. As an initial step, fuselage, fin and stabilizers (all OOB parts) lost their rib-and-fabric structure, simply sanded away. A minor detail, but it changes the overall look of the aircraft a lot, making it appear much more modern.
The fuselage was left without the OOB radial, and instead a leftover Merlin front end from an Airfix Hurricane (ca. 1cm long, left over from one of my first whif builds ever, a Hurricane with a radial engine!) was added. The lines match pretty well: the side profile looks sleek, if not elegant, but the Gladiator fuselage turned out to be wider than expected. Some major body work/PSR was necessary to integrate the new nose, but the result looks very good.
The liquid-cooled engine necessitated a radiator somewhere on the airframe…! Since I wanted the nose to remain slim and streamlined I eventually placed the radiator bath under the fuselage, much like the arrangement of the Hawker Fury biplane. The radiator itself comes from a late Spitfire (FROG kit).
The exhaust was taken from the Hurricane kit, too, and matching slits dug into the putty nose to take them. The three blade propeller is a mash-up, too: the spinner belongs, IIRC, to an early Spitfire (left over from an AZ Models kit) while the blades came from a damaged Matchbox Brewster Buffalo.
The Gladiator’s fuselage flank machine guns were kept and their “bullet channels” extrapolated along the new cowling, running under the new exhaust pipes. Another pair of machine guns were placed on top of the engine – for these, openings were carved into the upper hull and small fairings (similar to the Browning guns in the flanks) added. This arrangement appeared plausible to me, since the Gladiator’s oil cooler was not necessary anymore and the new lower wings (see below) were not big enough anymore to take the Gladiator’s underwing guns. Four MGs in the fuselage appears massive – but there were other types with such an arrangement, e.g. the Avia B-534 with four guns in the flanks and an inline engine.
The wings are complete replacements: the upper wing comes from a Heller Curtiss SBC4, while the lower wings as well as the spats (on shortened OOB Gladiator struts) come from an ICM Polikarpov I-153. All struts were scratched. Once the lower wings were in place and the relative position of the upper wing clear, the outer struts were carved from 1mm styrene sheet, using the I-153 design as benchmark. These were glued to the lower wing first, and, once totally dry after 24h, the upper wing was simply glued onto the top and the wing position adjusted. This was left to dry another 24h, and as a final step the four struts above the cowling (using the OOB struts, but as single parts and trimmed for proper fit) were placed. This way, a stable connection is guaranteed – and the result is surprisingly sturdy.
Rigging was done with heated sprue material – my personal favorite for this delicate task, and executed before painting the kit started so that the glue could cure and bond well.
Painting and markings:
The reason why this aircraft ended in Greek service is a color photograph of a crashed Hellenic Bloch M.B. 152 (coded ‘D 177’, to be specific). I guess that the picture was post-colored, though, because the aircraft of French origin sports rather weird colors: the picture shows a two-tone scheme in a deep, rather reddish chestnut brown and a light green that almost looks like teal. Unique, to say the least... Underside colors couldn’t be identified with certainty in the picture, but appeared like a pale but not too light blue grey.
Anyway, I assume that these colors are pure fiction and exaggerated Photoshop work, since the few M.B. 152s delivered to Greece carried AFAIK standard French camouflage (in French Khaki, Chestnut Brown and Blue-Grey on the upper surfaces, and a very light blue-grey from below). I’d assume that the contrast between the grey and green tones was not very obvious in the original photograph, so that the artist, not familiar with WWII paint schemes, replaced both colors with the strange teal tone and massively overmodulated the brown.
As weird as it looked, I liked this design and used it as an inspirational benchmark for my Hellenic Glaive build. After all, it’s a fictional aircraft… Upper basic colors are Humbrol 31 (RAF Slate Grey) and 160 (German Camouflage Red Brown), while the undersides became French Dark Blue Grey (ModelMaster Authentics 2105). The result looks rather odd…
Representing a combat-worn aircraft, I applied a thorough black ink wash and did heavier panel shading and dry-brushing on the leading edges, along with some visible touches of aluminum.
The Hellenic roundels come from a TL Modellbau aftermarket sheet. The tactical code was puzzled together from single letters, and the Greek “D” was created from single decal strips. For better contrast I used white decals – most Hellenic aircraft of the time had black codes, but the contrast is much better, and I found evidence that some machines actually carried white codes. The small fin flash is another free interpretation. Not every Hellenic aircraft carried these markings, and instead of painting the whole rudder in Greek colors I just applied a small fin flash. This was created with white and blue decal strips, closely matching the roundels’ colors.
Finally, after some soot stains around the guns and the exhausts, the kit was sealed with matt acrylic varnish.
Modified beyond recognition, perhaps…? The fictional Gloster Glaive looks IMHO good and very modern, just like one of those final biplane designs that were about to be outrun by monoplanes at the brink of WWII.
Some background:
The Leyland “Type D” was one of several armoured vehicle types designed in 1940 on the orders of Lord Beaverbrook and Admiral Sir Edward Evans, as a part of the hasty measures taken by the British Government following the Dunkirk evacuation and the threat of invasion.
The “Type D” was a heavy scout car, intended to replace the Lanchester 6x4 and Rolls-Royce 4x2 armoured cars, which dated back to the WWI era and the early interwar period. While they were reliable vehicles and still in active service, their off-road capabilities, armament and armour left a lot to be desired – esp. in the face of the modern German army and its effective equipment.
Certainly inspired by the German SdKfz. 231/232 family of heavy 8x8 armoured reconnaissance vehicles, Leyland added a fourth axle to better distribute the vehicle’s weight and a drivetrain to the front axle to a modified “Retriever” 3-ton 6x4 lorry chassis, resulting in a 6x8 layout. The rigid axles were mounted on leaf springs front and rear with hydraulic dampers, both front axles were steerable. The engine, a water-cooled 6-litre, 4-cylinder overhead camshaft petrol engine with 73 hp, was, together with the gearbox, relocated to the rear, making room for a fully enclosed crew compartment in the front section with two access doors in the vehicle’s flanks. The crew consisted of four, with the driver seat at the front. The gunner and commander (the commander at the right and gunner at the left) stood behind them into the turret or were sitting on simple leather belts, and behind them was a working station for a radio operator.
The tall, cylindrical turret was welded and electrically traversed, but it lacked a commander cupola. All the armament was mounted in the turret and consisted of a quick-firing two-pounder (40mm) cannon and a coaxial 7.92 mm Besa machine gun. The faceted hull was, like the turret, welded from homogenous steel armour plates, and a straightforward design. Maximum armour thickness was 15 mm at the front, 8 mm on the sides, and 10 mm on the back, with 6 mm and 5 mm of armour on the top and bottom respectively. It had been designed to provide protection from small arms fire and HE fragments, but it was ineffective against heavier weapons. This armour was a compromise, since better protection had resulted in a higher weight and overstrained the Type D’s lorry chassis and engine. The armoured cabin was mounted to the chassis at only four points - front, rear and sides - to give some flexibility but with precautions against excessive movement.
The Type D’s prototype was designed, built, tested and approved just within 3 months. Deliveries of the first production vehicles commenced only 2 months later, just in time to become involved in the North Africa campaign. All early production vehicles were immediately sent to Egypt and took part in Operation Compass and the Western Desert Campaign.
It comes as no surprise that the Type D – developed and produced in a hurry and thrown into battle in an environment it had not been designed for – initially failed, and even when the worst deficits had been rectified the Type D’s performance remained mediocre at best. The biggest problems concerned the engine’s cooling system, its low power output and therefore poor speed, and the vehicle’s poor off-road performance, esp. on soft ground like sand. The vehicle’s suspension was quickly overburdened in heavy terrain and the tall turret placed its center of gravity very high, making the Type D prone to topple over to a side when slope angles were taken too slightly. Poor cabin ventilation was another problem that became even more apparent under the African sun.
Initial losses were high: more than half of the Type Ds lost in North Africa during the early months of 1941 were abandoned vehicles which got stuck or had to be left behind due to mechanical failures. The rest had fallen easy prey to German and Italian attacks – the Type D was not only very vulnerable even to the Panzer II’s 20 mm autocannon, its thin top armour made it in the open desert also very vulnerable to air attacks: German MG 131 machine gun rounds easily punched the vehicle’s shell, and even lighter weapons were a serious threat to the tall Type D.
As soon as the first sobering field reports returned back to Great Britain, Leyland immediately devised major improvements. These were introduced to newly produced Mk. II vehicles and partly retrofitted to the early Mk. I vehicles in field workshops. One of these general improvements were new desert wheels and tires, which were considerably wider than the original lorry wheels and featured a flat pattern that better distributed the vehicle’s weight on soft and unstable ground, what considerably improved the Type D’s performance on sand. A kit with a more effective radiator and a bigger engine cooling system was quickly developed and sent to the units in Africa, too. The kit did not fully solve the overheating problems of the early Mk. I, but improved the situation. From the outside, retrofitted Type Ds could be recognized by a raised engine cover with enlarged air intakes. Due to the limits of the chassis the armour level was not improved, even though the crews and field workshops tried to attach improvised additional protective measures like spare track links from tanks or sandbags – with mixed results, though. The armament was not updated either, except for an optional mount for an additional light anti-aircraft machine gun on the turret and kits for smoke dischargers on the turret’s flanks.
The Type D Mk. II, which gradually replaced the Mk. I on the production lines from March 1941 on, furthermore received a different and much more effective powerplant, a Leyland 7-litre six-cylinder diesel engine with an output of 95 hp (70 kW). It not only provided more power and torque, markedly improving the vehicle’s off-road performance, it also had a better fuel economy than the former lorry petrol engine (extending range by 25%), and the fuel itself was less prone to ignite upon hits or accidents.
During its short career the Leyland Type D was primarily used in the North African Campaign by the 11th Hussars and other units. After the invasion of Italy, a small number was also used in the Southern European theatre by reconnaissance regiments of British and Canadian infantry divisions. A few vehicles were furthermore used for patrol duty along the Iran supply route.
However, the Type D was not popular, quickly replaced by smaller and more agile vehicles like the Humber scout car, and by 1944 outdated and retired. Leyland built a total of 220 Type Ds of both versions until early 1943, whilst an additional 86 Mk. IIs were built by the London, Midland and Scottish Railway's Derby Carriage Works.
Specifications:
Crew: Four (commander, gunner, driver, co-driver/radio operator/loader)
Weight: 8.3 tons
Length: 20 ft 5 in (6,30 m)
Width: 7 ft 5 in (2,27 m)
Height: 9 ft 2¾ in (2,81 m)
Ground clearance: 12 in (30.5 cm)
Turning radius: 39 ft (12 m)
Suspension: Wheel, rigid front and rear axles;
4x8 rear-wheel drive with selectable additional 6x8 front axle drive
Fuel capacity: 31 imp gal (141 litres)
Armour:
5–15 mm (0.2 – 0.6 in)
Performance:
Maximum road speed: 35 mph (56 km/h)
Sustained road speed: 30 mph (48 km/h)
Cross country speed: up to 20 mph (32 km/h)
Operational range: 250 mi (400 km)
Power/weight: 11,44 hp/ton
Engine:
1× Leyland 7-litre six-cylinder diesel engine, 95 hp (70 kW)
Transmission:
4-speed, with a 2-speed auxiliary box
Armament:
1× QF Two-pounder (40 mm/1.57 in) cannon with 94 rounds
1× 7.92 mm Besa machine gun mounted co-axially with 2.425 rounds
2-4× smoke dischargers, mounted on the turret
The kit and its assembly:
This fictional British WWII vehicle might look weird, but it has a real-world inspiration: the Marmon Herrington Mk. VI armoured heavy scout car. This vehicle only existed as a prototype and is AFAIK still preserved in a museum in South Africa – and upon a cursory glance it looks like an SdKfz. 232 with the shrunk turret from a “Crusader” cruiser tank with a short-barreled six pounder gun. It looks like a fake! Another reason for this build was a credible “canvas” for the application of the iconic “Caunter Scheme”, so that I placed the Type D in a suitable historic time frame.
The Type D was not supposed to be a truthful Marmon Herrington Mk. VI copy, so I started with a 1:72 “First to Fight” SdKfz. 232. This is a simple and sturdy tabletop wargaming model, but it is quite accurate, goes together well, is cheap and even comes with a metal gun barrel. It’s good value for the money, even though the plastic is a little thick and soft.
However, from this basis things changed in many ways. I initially wanted to shorten the hull, but the new wheels (see below) made this idea impossible. Nevertheless, the front glacis plate was completely re-modeled with 2C putty in the style of the Humber scout car, and the crew cabin was extended backwards with the same method. New observation slits had to be scratched with styrene profile material. The engine bay received a raised cover, simulating extra air intakes. The turret was replaced with a resin piece for an A13 “Valentine” Mk.III tank (S&S Models), which had a perfect size and even came with a suitable gun.
The suspension was taken OOB, but the wheels were replaced with two aftermarket resin sets (Silesian Models) with special Allied desert wheels/tires from 1941, they originally belong to a Chevrolet truck and are markedly bigger and wider than the SdKfz. 232 wheels. However, they had to be modified to match the rest of the suspension, and their size necessitated a thorough modification of the mudguards. They were not only mounted 1mm higher on the flanks, their sides, normally consisting of closed skirts, were fully opened to make sufficient room for the new wheels to change the vehicle’s look. They were furthermore separated into four two-wheel covers and their front and rear ends were slightly bent upwards. Sufficient space for the side doors had to be made, too. The spare wheels that came with the respective sets were mounted to the front (again Humber-style) and onto the engine bay cover, under a scratched tarpaulin (made from paper tissue drenched with white glue).
To conceal the SdKfz. 232 heritage even more I added more equipment to the vehicle’s flanks. Tool boxed were added to the engine bay’s flanks, some more tools to the fenders, scratched tarpaulin rolls above the side doors and I tried to scratch PSP plates with aluminum foil rubbed against a flight stand diorama floor made from PSP. Not perfect, but all the stuff livens the Type D up. A new exhaust (IIRC from a Panzer IV) was added to the rear and bumpers scratched from wire and mounted low unto the hull.
Painting and markings:
Finally, the British, so-called “Caunter Scheme”, a great source of misinterpretation not only in museums but also by modelers who have painted their British tanks in dubious if not garish colors. I do not claim that my interpretation of the colors is authentic, but I did some legwork and tried to improvise with my resources some tones that appear plausible (at least to me), based on descriptions and contemporary references.
The pattern itself was well defined for each vehicle type, and I adapted a M3 “Stuart” pattern for the model. All three basic colors, “Light Stone”, “Silver Grey” and “Slate”, were guesstimated. “Slate” is a relatively dark and greenish tone, and I chose Tamiya XF-65 (Field Grey). “Light Stone” is rather yellow-ish, light sand tone, and I used Humbrol 103 (Cream). Some sources suggest the use of Humbrol 74 (linen) as basis, but that is IMHO too yellow-ish and lacks red. The most obscure tone is “Silver Grey”, and its depictions range from a pale and dull light olive drab over blue-grey, greenish grey to bright light blue and even turquoise. In fact, this tone must have had a greenish-blue hue, and so I mixed Humbrol 145 (FS 35237) with maybe Humbrol 94 in a 3:1 ratio to achieve an “in between” tone, which is hard to describe - maybe as a greenish sand-grey? A funny effect of the colors in direct contrast is that the XF-65 appeared with an almost bluish hue! Overall, the choice of colors seems to work, though, and the impression is good.
Painting was, as usual, done with brushes and, due to the vehicle’s craggy shape, free-handedly. After basic painting the model received a light washing with a mix of black ink and brown, and some post-shading was done with light grey (Revell 75) and Hemp (Humbrol 168). Decals came from the scrap box, and before an overall protective coat of matt acrylic varnish was applied, the model received an additional treatment with thinned Revell 82 (supposed to be RAF Dark Earth but it is a much paler tone).
A more demanding build than one would expect at first sight. The SdKafz. 232 is unfortunately still visible, but the desert wheels, including the spare wheels, change the look considerably, and the British replacement turret works well, too. Using the tabletop model basis was not a good move, though, because everything is rather solid and somewhat blurry, esp. the many molded surface details, which suffered under the massive body work. On the other side, the Counter Scheme IMHO turned out well, esp. the colors, even though the slender hull made the adaptation of the pattern from a (much shorter) tank not easy. But most of the critical areas were hidden under extra equipment, anyway. 😉
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based on historical facts. BEWARE!
Some background:
In the first years of the war, the Wehrmacht had only little interest in developing self-propelled anti-aircraft guns, but as the Allies developed air superiority and dedicated attack aircraft threatened the ground troops from above, the need for more mobile and better-armed self-propelled anti-aircraft guns increased. As a stopgap solution the Wehrmacht initially adapted a variety of wheeled, half-track and tracked vehicles to serve as mobile forward air defense positions. Their tasks were to protect armor and infantry units in the field, as well as to protect temporary forward area positions such as mobile headquarters and logistic points.
These vehicles were only lightly armored, if at all, and rather mobilized the anti-aircraft weapons. As Allied fighter bombers and other ground attack aircraft moved from machine gun armament and bombing to air-to-ground rockets and large-caliber cannons, the air defense positions were even more vulnerable. The answer was to adapt a tank chassis with a specialized turret that would protect the gun crews while they fired upon approaching Allied aircraft. Furthermore, the vehicle would have the same mobility as the battle tanks it protected.
Initial German AA-tank designs were the ‘Möbelwagen’ and the ‘Wirbelwind’, both conversions of refurbished Panzer IV combat tank chassis with open platforms or turrets with four 20mm cannon. Alternatively, a single 37mm AA gun was mounted, too – but all these vehicles were just a compromise and suffered from light armor, a high silhouette and lack of crew protection.
Further developments of more sophisticated anti-aircraft tank designs started in late 1943 and led into different directions. One development line was the ‘Kugelblitz’, another Panzer IV variant, but this time the ball-shaped turret, armed with very effective 30 mm MK 103 cannon, was fully integrated into the hull, resulting in a low silhouette and a protected crew. However, the ‘Kugelblitz’ only featured two of these guns and the tilting turret was very cramped and complicated. Venting and ammunition feed problems led to serious delays and a prolonged development stage.
The ‘Coelian’ family of bigger turrets with various weapon options for the Panzer V (the ‘Panther’) was another direction, especially as a response against the armored Il-2 attack aircraft at the Eastern front and against flying targets at medium altitude. Targets at high altitude, esp. Allied bombers, were to be countered with the very effective 8.8 cm Flak, and there were also several attempts to mount this weapon onto a fully armored hull.
The primary weapon for a new low/medium altitude anti-aircraft tank was to become the heavy automatic 55 mm MK 214. Like the 30 mm MK 103 it was a former aircraft weapon, belt-fed and adapted to continuous ground use. However, in early 1944, teething troubles with the ‘Kugelblitz’ suggested that a completely enclosed turret with one or (even better) two of these new weapons, mounted on a ‘Panther’ or the new E-50/75 tank chassis, would need considerable development time. Operational vehicles were not expected to enter service before mid-1945. In order to fill this operational gap, a more effective solution than the Panzer IV AA conversions, with more range and firepower than anything else currently in service, was direly needed.
This situation led to yet another hasty stopgap solution, the so-called ‘Ostwind II’ weapon system, which consisted primarily of a new turret, mated with a standard medium battle tank chassis. It was developed in a hurry in the course of 1944 and already introduced towards the end of the same year. The ‘Ostwind II’ was a compromise in the worst sense: even though it used two 37 mm FlaK 43 guns in a new twin mount and offered better firepower than any former German AA tank, it also retained many weaknesses from its predecessors: an open turret with only light armor and a high silhouette. But due to the lack of time and resources, the ‘Ostwind II’ was the best thing that could be realized on short notice, and with the perspective of more effective solutions within one year’s time it was rushed into production.
The ‘Ostwind II’ system was an open, roughly diamond-shaped, octagonal turret, very similar in design to the Panzer IV-based ‘Wirbelwind’ and ‘Ostwind’ (which was re-designated ‘Ostwind I’). As a novelty, in order to relieve the crew from work overload, traverse and elevation of the turret was hydraulic, allowing a full elevation (-4° to +90° was possible) in just over four seconds and a full 360° traverse in 15 seconds. This had become necessary because the new turret was bigger and heaver, both the weapons and their crews required more space, so that the Ostwind II complex could not be mounted onto the Panzer IV chassis anymore and movement by hand was just a fallback option.
In order to provide the ‘Ostwind II’ with a sufficiently large chassis, it was based on the SdKfz. 171 Panzer V medium battle tank, the ‘Panther’, exploiting its bigger turret ring, armor level and performance. The Panther chassis had, by late 1944, become available for conversions in considerable numbers through damaged and/or recovered combat tanks, and updated details like new turrets or simplified road wheels were gradually introduced into production and during refurbishments. Mounting the ‘Ostwind II’ turret on the Panzer VI (Tiger) battle tank chassis had been theoretically possible, too, but it never happened, because the Tiger lacked agility and its protection level and fuel consumption were considered impractical for an SPAAG that would typically protect battle tank groups.
The ‘Ostwind II’ turret was built around a motorized mount for the automatic 3.7 cm FlaK 43 twin guns. These proven weapons were very effective against aircraft flying at altitudes up to 4,200 m, but they also had devastating effect against ground targets. The FlaK 43’s armor penetration was considerable when using dedicated ammunition: at 100 m distance it could penetrate 36 mm of a 60°-sloped armor, and at 800 m distance correspondingly 24 mm. The FlaK 43’s theoretical maximum rate of fire was 250 shots/minute, but it was practically kept at ~120 rpm in order to save ammunition and prevent wear of the barrels. The resulting weight of fire was 76.8 kg (169 lb) per minute, but this was only theoretical, too, because the FlaK 43 could only be fed manually by 6-round clips – effectively, only single shots or short bursts could be fired, but a trained crew could maintain fire through using alternating gun use. A more practical belt feed was at the time of the Ostwind II's creation not available yet, even though such a mechanism was already under development for the fully enclosed Coelian turret, which could also take the FlaK 43 twin guns, but the armament was separated from the turret crew.
The new vehicle received the official designation ‘Sd.Kfz. 171/2 Flakpanzer V’, even though ‘Ostwind II’ was more common. When production actually began and how many were built is unclear. The conversion of Panther hulls could have started in late-1944 or early-1945, with sources disagreeing. The exact number of produced vehicles is difficult to determine, either. Beside the prototype, the number of produced vehicles goes from as little as 6 to over 40. The first completed Ostwind II SPAAGs were exclusively delivered to Eastern front units and reached them in spring 1945, where they were immediately thrown into action.
All Flakpanzer vehicles at that time were allocated to special anti-aircraft tank platoons (so-called Panzer Flak Züge). These were used primarily to equip Panzer Divisions, and in some cases given to special units. By the end of March 1945, there were plans to create mixed platoons equipped with the Ostwinds and other Flakpanzers. Depending on the source, they were either to be used in combination with six Kugelblitz, six Ostwinds and four Wirbelwinds or with eight Ostwinds and three Sd.Kfz. 7/1 half-tracks. Due to the war late stage and the low number of anti-aircraft tanks of all types built, this reorganization was never truly implemented, so that most vehicles were simply directly attached to combat units, primarily to the commanding staff.
The Ostwind II armament proved to be very effective, but the open turret (nicknamed ‘Keksdose’ = cookie tin) left the crews vulnerable. The crew conditions esp. during wintertime were abominable, and since aiming had to rely on vision the system's efficacy was limited, esp. against low-flying targets. The situation was slightly improved when the new mobile ‘Medusa’ and ‘Basilisk’ surveillance and target acquisition systems were introduced. These combined radar and powerful visual systems and guided the FlaK crews towards incoming potential targets, what markedly improved the FlaKs' first shot hit probability. However, the radar systems rarely functioned properly, the coordination of multiple SPAAGs in the heat of a low-level air attack was a challenging task, and - to make matters worse - the new mobile radar systems were even more rare than the new SPAAGs themselves.
All Ostwind II tanks were built from recovered ‘Panther’ battle tanks of various versions. The new Panther-based SPAAGs gradually replaced most of the outdated Panzer IV AA variants as well as the Ostwind I. Their production immediately stopped in the course of 1945 when the more sophisticated 'Coelian' family of anti-aircraft tanks with fully enclosed turrets became available. This system was based on Panzer V hulls, too, and it was soon followed by the first E-50 SPAAGs with the new, powerful twin-55 mm gun.
Specifications:
Crew: Six (commander, gunner, 2× loader, driver, radio-operator/hull machine gunner)
Weight: 43.8 tonnes (43.1 long tons; 48.3 short tons)
Length (hull only): 6.87 m (22 ft 6 in)
Width: 3.42 m (11 ft 3 in)
Height: 3.53 m (11 ft 6 3/4 in)
Suspension: Double torsion bar, interleaved road wheels
Fuel capacity: 720 litres (160 imp gal; 190 US gal)
Armor:
15–80 mm (0.6 – 3.15 in)
Performance:
Maximum road speed: 46 km/h (29 mph)
Operational range: 250 km (160 mi)
Power/weight: 15.39 PS (11.5 kW)/tonne (13.77 hp/ton)
Engine:
Maybach HL230 P30 V-12 petrol engine with 700 PS (690 hp, 515 kW)
ZF AK 7-200 gear; 7 forward 1 reverse
Armament:
2× 37 mm (1.46 in) FlaK 43 cannon in twin mount with 1.200 rounds
1× 7.92 mm MG 34 machine gun in the front glacis plate with 2.500 rounds
The kit and its assembly:
This was a spontaneous build, more or less the recycling of leftover parts from a 1:72 Revell Ostwind tank on a Panzer III chassis that I had actually bought primarily for the chassis (it became a fictional Aufklärungspanzer III). When I looked at the leftover turret, I wondered about a beefed-up/bigger version with two 37 mm guns. Such an 'Ostwind II' was actually on the German drawing boards, but never realized - but what-if modelling can certainly change that. However, such a heavy weapon would have to be mounted on a bigger/heavier chassis, so the natural choice became the Panzer V, the Panther medium battle tank. This way, my ‘Ostwind II’ interpretation was born.
The hull for this fictional AA tank is a Hasegawa ‘Panther Ausf. G’ kit, which stems from 1973 and clearly shows its age, at least from today’s point of view. While everything fits well, the details are rather simple, if not crude (e. g. the gratings on the engine deck or the cupola on the turret). However, only the lower hull and the original wheels were used since I wanted to portray a revamped former standard battle tank.
The turret was a more complicated affair. It had to be completely re-constructed, to accept the enlarged twin gun and to fit onto the Panther hull. The first step was the assembly of the twin gun mount, using parts from the original Ostwind kit and additional parts from a second one. In order to save space and not to make thing uber-complicated I added the second weapon to the right side of the original gun and changed some accessories.
This, together with the distance between the barrels, gave the benchmark for the turret's reconstruction. Since the weapon had not become longer, I decided to keep things as simple as possible and just widen the open turret - I simply took the OOB Ostwind hexagonal turret (which consists of an upper and lower half), cut it up vertically and glued them onto the Panther turret's OOB base, shifting the sides just as far to the outside that the twin gun barrels would fit between them - a distance of ~0.4 inch (1 cm). At the rear the gap was simply closed with styrene sheet, while the front used shield parts from the Revell Ostwind kit that come from a ground mount for the FlaK 43. Two parts from this shield were glued together and inserted into the front gap. While this is certainly not as elegant as e. g. the Wirbelwind turret, I think that this solution was easier to integrate.
Massive PSR was necessary to blend the turret walls with the Panther turret base, and as a late modification the opening for the sight had to be moved, too. To the left of the weapons, I also added a raised protective shield for the commander.
Inside of the turret, details from the Ostwind kit(s), e. g. crew seats and ammunition clips, were recycled, too.
Painting and markings:
Since the Ostwind II would be based on a repaired/modified former Panzer V medium battle tank, I settled upon a relatively simple livery. The kit received a uniform finish in Dunkelgelb (RAL 7028), with a network of greenish-grey thin stripes added on top, to break up the tank's outlines and reminiscent of the British ‘Malta’ scheme, but less elaborate. The model and its parts were initially primed with matt sand brown from the rattle can (more reddish than RAL 7028) and then received an overall treatment with thinned RAL 7028 from Modelmaster, for an uneven, dirty and worn look. The stripes were created with thinned Tamiya XF-65 (Field Grey).
Once dry, the whole surface received a dark brown wash, details were emphasized with dry-brushing in light grey and beige. Decals were puzzled together from various German tank sheets, and the kit finally sealed with matt acrylic varnish.
The black vinyl tracks were also painted/weathered, with a wet-in-wet mix of black, grey, iron and red brown (all acrylics). Once mounted into place, mud and dust were simulated around the running gear and the lower hull with a greyish-brown mix of artist mineral pigments.
A bit of recycling and less exotic than one would expect, but it’s still a whiffy tank model that fits well into the historic gap between the realized Panzer IV AA tanks and the unrealized E-50/75 projects. Quite subtle! Creating the enlarged turret was the biggest challenge, even, even more so because it was/is an open structure and the interior can be readily seen. But the new/bigger gun fits well into it, and it even remained movable!
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background
The Hütter Hü 324 was the final development stage of BMW's 'Schnellbomber II' project, which had been designed around two mighty BMW 109-028 turboprops.
These innovative engines had been developed since February 1941, but did not receive fullest attention due to the more promising jet engines. Anyway, it soon became clear that no jet engine with the potential to drive a bomber-sized aircraft - considering both performance and fuel consumption - would be available on short notice. Consequently, the BMW 028 received more attention from the RLM from 1943 on.
Biggest pressure came from the fact that several obsolete types like the He 111 or Do 217 had to be replaced, and the ill-fated and complicated He 177 was another candidate with little future potential, since four-engined variants had been rejected. Additionally, the promising and ambitious Ju 288 had been stillborn, and a wide gap for a tactical medium bomber opned in the Luftwaffe arsenal.
In may 1943, new requirements for a medium bomber were concretised. Main objective was to design a fast, twin-engined bomber, primarily intended for horizontal bombing, which would be able to carry a 3.000 kilograms (6.600 lbs) payload at 800 kilometres per hour in a 1.500km (900 ml) radius. The plane had to be fast and to operate at great heights, limiting the threat of interception.
Since many major design bureaus’ resources were bound, Ulrich W. Hütter, an Austro-German engineer and university professor got involved in the RLM project and BMW's design team which had been working on appropriate designs. In July 1943, Hütter moved to the Research Institute of the Graf Zeppelin works (FGZ) convened in Ruit near Stuttgart, and as head of the engineering department he was also involved in the development of manned missiles, underwater towing systems and the Hü 211 high altitude interceptor/reconnaissance plane.
Under Ulrich W. Hütter and his brother, Wolfgang Hütter, BMW's original and highly innovative (if not over-ambitious) Schnellbomber designs gave way to a more conservative layout: the so-called BMW-Hütter Hü 324.
The plane was conventional in layout, with high, unswept laminar profile wings and a high twin tail. The engines were carried in nacelles slung directly under the wings. The nose wheel retracted rearwards, while the main wheels retracted forwards into the engine nacelles, rotating 90°, and laying flat under the engines. The crew of four (pilot, co-pilot/bombardier, navigator/radar operator and gunner/radio operator) were accommodated in a compact, pressurised "glass house" cockpit section – a popular design and morale element in Luftwaffe bomber and reconnaissance aircraft of that era.
Construction of the first prototype started in February 1945, and while the aircraft cell made good progress towards the hardware stage, the development suffered a serious setback in March when BMW admitted that the 109-028 turboprop engine would not be ready in time. It took until August to arrive, and the prototype did not fly until 6 November 1945.
Initial flight test of the four A-0 pre-production samples of the Hü 324 went surprisingly well. Stability and vibration problems with the aircraft were noted, though. One major problem was that the front glas elements were prone to crack at high speeds, and it took a while to trace the troubole source back to the engines and sort these problems out. Among others, contraprops were fitted to counter the vibration problems, the engines' power output had to be reduced by more than 500 WPS and the tail fins had to be re-designed.
Another innovative feature of this bomber was the “Elbegast” ground-looking navigation radar system, which allowed identification of targets on the ground for night and all-weather bombing. It was placed in a shallow radome behind the front wheel. Performance-wise, the system was comparable to the USAAF’s H2X radar, and similarly compact. Overall, the Hü 324 showed much promise and a convincing performance, was easy to build and maintain, and it was immediately taken to service.
Despite the relatively high speed and agility for a plane of its size, the Hü 324 bore massive defensive armament: the original equipment of the A-1 variant comprised two remotely operated FDL 131Z turrets in dorsal (just behind the cockpit) and ventral (behind the bomb bay) position with 2× 13 mm MG 131 machine guns each, plus an additional, unmanned tail barbette with a single 20mm canon. All these guns were aimed by the gunner through a sighting station at the rear of the cockpit, effectively covering the rear hemisphere of the bomber.
After first operational experience, this defence was beefed up with another remotely-controlled barbette with 2× 13 mm MG 131 machine guns under the cockpit, firing forwards. The reason was similar to the introduction of the chin-mounted gun turret in the B-17G: the plane was rather vulnerable to frontal attacks. In a secondary use, the chin guns could be used for strafing ground targets. This update was at first called /R1, but was later incorporated into series production, under the designation A-2.
Effectively, almost 4.500kg ordnance could be carried in- and externally, normally limited to 3.000kg in the bomb bay in order to keep the wings clean and reduce drag, for a high cruising speed. While simple iron bombs and aerial mines were the Hü 324's main payload, provisions were made to carry guided weapons like against small/heavily fortified targets. Several Rüstsätze (accessory packs) were developed, and the aircraft in service received an "/Rx" suffix to their designation, e. g. the R2 Rüstsatz for Fritz X bomb guidance or the R3 set for rocket-propelled Hs 293 bombs.
Trials were even carried out with a semi-recessed Fieseler Fi 103 missile, better known as the V1 flying bomb, hung under the bomber's belly and in an enlarged bomb bay, under deletion of the ventral barbette.
The Hü 324 bomber proved to be an elusive target for the RAF day and night fighters, especially at height. After initial attacks at low level, where fast fighters like the Hawker Tempest or DH Mosquito night fighters were the biggest threat, tactics were quickly changed. Approaching at great height and speed, bombing was conducted from medium altitudes of 10,000 to 15,000 feet (3,000 to 4,600 m).
The Hü 324 proved to be very successful, striking against a variety of targets, including bridges and radar sites along the British coast line, as well as ships on the North Sea.
From medium altitude, the Hü 324 A-2 proved to be a highly accurate bomber – thanks to its "Elbegast" radar system which also allowed the planes to act as pathfinders for older types or fast bombers with less accurate equipment like the Ar 232, Ju 388 or Me 410. Loss rates were far lower than in the early, low-level days, with the Hü 324 stated by the RLM as having the lowest loss rate in the European Theatre of Operations at less than 0.8 %.
BMW-Hütter Ha 324A-2, general characteristics:
Crew: 4
Length: 18.58 m (60 ft 10 in)
Wingspan: 21.45 m (70 ft 4½ in )
Height: 4.82 m (15 ft 9½ in)
Wing area: 60.80 m² (654.5 ft.²)
Empty weight: 12,890 kg (28,417 lb)
Loaded weight: 18,400 kg (40,565 lb)
Max. take-off weight: 21,200 kg (46,738 lb)
Performance:
Maximum speed: 810 km/h (503 mph) at optimum height
Cruising speed: 750 km/h (460 mph) at 10,000 m (32,800 ft)
Range: 3.500 km (2.180 ml)
Service ceiling: 11.400 m (37.500 ft)
Rate of climb: 34.7 m/s (6,820 ft/min)
Powerplant:
Two BMW 109-028 ‘Mimir’ turboprop engines, limited to 5.500 WPS (4.044 WkW) each plus an additional residual thrust of 650kg (1.433 lb), driving four-bladed contraprops.
Armament:
6× 13mm MG 131 in three FDL 131Z turrets
1× 20mm MG 151/20 in unmanned/remote-controlled tail barbette
Up to 4.500 kg (9.800 lbs) in a large enclosed bomb-bay in the fuselage and/or four underwing hardpoints.
Typically, bomb load was limited to 3.000 kg (6.500 lbs) internally.
The kit and its assembly
This project/model belongs in the Luft '46 category, but it has no strict real world paradigm - even though Luftwaffe projects like the Ju 288, the BMW Schnellbomber designs or Arado's E560/2 and E560/7 had a clear influence. Actually, “my” Hü 324 design looks pretty much like a He 219 on steroids! Anyway, this project was rather inspired by a ‘click’ when two ideas/elements came together and started forming something new and convincing. This is classic kitbashing, and the major ingredients are:
● Fuselage, wings, landing gear and engine nacelles from a Trumpeter Ilyushin Il-28 bomber
● Nose section from an Italeri Ju 188 (donated from a friend, leftover from his Ju 488 project)
● Stabilisers from an Italeri B-25, replacing the Il-28’s swept tail
● Contraprops and fuselage barbettes from a vintage 1:100 scale Tu-20(-95) kit from VEB Plasticart (yes, vintage GDR stuff!)
Most interestingly, someone from the Netherlands had a similar idea for a kitbashing some years ago: www.airwar1946.nl/whif/L46-ju588.htm. I found this after I got my idea for the Hü 324 together, though - but its funny to see how some ideas manifest independently?
Building the thing went pretty straightforward, even though Trumpeter's Il-28 kit has a rather poor fit. Biggest problem turned out to be the integration of the Ju 188 cockpit section: it lacks 4-5mm in width! That does not sound dramatic, but it took a LOT of putty and internal stabilisation to graft the parts onto the Il-28's fuselage.
The cockpit was completely re-equipped with stuff from the scrap box, and the main landing gear received twin wheels.
The chin turret was mounted after the fuselage was complete, the frontal defence had been an issue I had been pondering about for a long while. Originally, some fixed guns (just as the Il-28 or Tu-16) had been considered. But when I found an old Matchbox B-17G turret in my scrap box, I was convinced that this piece could do literally the same job in my model, and it was quickly integrated. As a side effect, this arrangement justifies the bulged cockpit bottom well, and it just looks "more dangerous".
Another task was the lack of a well for the front wheel, after the Il-28 fuselage had been cut and lacked the original interior. This was also added after the new fuselage had been fitted together, and the new well walls were built with thin polystyrene plates. Not 100% exact and clean, but the arrangement fits the bill and takes the twin front wheel.
The bomb bay was left open, since the Trumpeter kit offers a complete interior. I also added four underwing hardpoints for external loads (one pair in- and outboard of the engine nacelles), taken from A-7 Corsair II kits, but left them empty. Visually-guided weapons like the 'Fritz X' bomb or Hs 293 missiles would IMHO hardly make sense during night sorties? I also did not want to overload the kit with more and more distracting details.
Painting
Even though it is a whif I wanted to incorporate some serious/authentic late WWII Luftwaffe looks. Since the Hü 324 would have been an all-weather bomber, I went for a night bomber livery which was actually used on a He 177 from 2./KG 100, based in France: Black (RLM 22, I simply used Humbrol 33) undersides, and upper surfaces in RLM 76 (Base is Humbrol 128, FS36320, plus some added areas with Testors 2086, the authentic tone which is a tad lighter, but very close) with mottles in RLM 75 (Grauviolett, Testors 2085, plus some splotches of Humbrol 27, Medium Sea Grey), and some weathering through black ink, some enhanced panel lines (with a mix of matte varnish and Panzergrau), as well as some dry painting all over the fuselage.
All interior surfaces were painted in RLM 66 (Schwarzgrau/Black Grey, Testors 2079), typical for German late WWII aircraft. Propeller spinners were painted RLM 70 (Schwarzgrün) on the front half, the rear half was painted half black and half white.
Pretty simple scheme, but it looks VERY cool, esp. on this sleek aircraft. I am very happy with this decision, and I think that this rather simple livery is less distracting from the fantasy plane itself, making the whif less obvious. In the end, the whole thing looks a bit grey-in-grey, but that spooky touch just adds to the menacing look of this beefy aircraft. I think it would not look as good if it had been kept in daytime RLM 74/75/76 or even RLM 82/83/76?
Markings and squadron code were puzzled together from an Authentic Decal aftermarket sheet for a late He 111 and individual letters from TL Modellbau. The "F3" code for the fictional Kampfgruppe (KG) 210 is a random choice, "EV" marks the individual plane, the red "E" and the control letter "V" at the end designate a plane from the eleventh squadron of KG 210. My idea is that the Hü 324 would replace these machines and literally taking their place in the frontline aviaton units. So I tried to keep in line with the German aircraft code, but after all, it's just a whif...
So, after some more surgical work than expected, the Hü 324 medium bomber is ready to soar!
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
The Soviet Laboratory of High-Speed Automobiles (LSA ChADI, today the Chardiv National Automobile and Highway University) was founded in 1953. One of the laboratory’s founders was Vladimir Nikitin, a famous racer not only inside the Soviet Union but also around the world. The main purpose of Vladimir Nikitin’s of was to build the fastest car in the world. This idea of creating race cars became the purpose of the laboratory and has been continued by students of Nikitin throughout the years, with research and prototypes in various fields of car propulsion.
The first car created in LSA by students was ChADI 2 in 1961. The body of the car was made of fiberglass, the first time that this material was used for a car body in the Soviet Union. This technology was improved and later used in mass-produced cars. Another famous LSA car was ChADI 7. To create it, Nikitin and his students used airplane wing elements as car body material and used the engine from a helicopter to power it. The highest speed of ChADI 7 – 400 kilometers per hour – was recorded on an airport runway near Chardiv in 1968, and it was at that time the fastest car in the Soviet Union, setting the national land speed record.
After this successful vehicle, Vladimir Nikitin started a new, even more ambitious project: a speed record car with the jet engine from a high performance airplane! The name of this project was ChADI 9, and it was ambitious. This time Nikitin and his team used a Tumansky RD-9 turbojet engine with a dry thrust of 25.5 kN (5,730 lbf), the same engine that powered the supersonic Mikoyan-Gurewich MiG-19 fighter plane. He expected that this needle-shaped car would be able to break the absolute land speed record, which meant supersonic speed at level zero of almost 1.200 kilometers an hour. The car was finished in 1981, but unfortunately ChADI 9 never participated in any race and no official top speed result was ever recorded. This had initially a very practical reason: in the 1980’s there were simply no tires in the USSR that could be safely used at the expected speeds in excess of 400 km/h, and there was furthermore no track long enough for a serious test drive in the Soviet Union! In consequence, ChADI 9 had to be tested on the runway of a military airport in the proximity of Chardiv, outfitted with wheels and tires from a MiG-19, but these were not ideal for prolonged high speeds. Film footage from these tests later appeared in a 1983 movie called “IgLa”.
The Automotive Federation of the United States even invited ChADI 9 to participate in an official record race in the USA, but this did not happen either, this time for political reasons. Nevertheless, the main contribution of this car was gathering experience with powerful jet engines and their operations in a ground vehicle, as well as experience with car systems that could withstand and operate at the expected high levels of speed, and the vehicle was frequently tested until it was destroyed in high speed tests in 1988 (see below).
ChADI 9 was not the end of Nikitin’s strife for speed (and the prestige associated with it). The know-how that the design team had gathered in the first years of testing ChADI 9 were subsequentially integrated into the LSA’s ultimate proposal not only to break the national, but also the absolute land speed record: with a new vehicle dubbed ChADI 9-II. This car was a completely new design, and its name was deliberately chosen in order to secure project budgets – it was easier to gain support for existing (and so far successful) projects rather than found new ones and convince superior powers of their value and success potential.
ChADI 9-II’s conceptual phase was launched in 1982 and it was basically a scaled-up evolution of ChADI 9, but it featured some significant differences. Instead of the RD-9 turbojet, the new vehicle was powered by a much more potent Tumansky R-25-300 afterburning turbojet with a dry thrust of 40.21 kN (9,040 lbf) and 69.62 kN (15,650 lbf) with full afterburner. This new engine (used and proven in the MiG-21 Mach 2 fighter) had already been thoroughly bench-tested by the Soviet Laboratory of High-Speed Automobiles in 1978, on an unmanned, tracked sled.
However, the development of ChADI 9-II and its details took more than two years of dedicated work by LSA ChADI’s students, and in 1984 the design was finally settled. The new vehicle was much bigger than its predecessor, 44 ft 10 in long, 15 ft 6¾ in wide, and 9 ft 10¾ in high (13.67 m by 4,75 m by 3,02 m), and it weighed around 9,000 lb (4 t). Its construction was based on a steel tube frame with an integrated security cell for the driver and an aluminum skin body, with some fibre glass elements. While ChADI 9’s slender cigar-shaped body with a circular diameter and the tricycle layout were basically retained, the front end of ChADI 9-II and its internal structure were totally different: instead of ChADI 9’s pointed nose, with the cockpit in the front and ahead of the vehicle’s front wheel and a pair of conformal (but not very efficient) side air intakes, ChADI 9-II featured a large, single orifice with a central shock cone. A small raked lower lip was to prevent FOD to the engine and act at the same time as a stabilizing front spoiler. The driver sat under a tight, streamlined canopy, the bifurcated air intake ducts internally flanking the narrow cockpit. Two steerable front wheels with a very narrow track were installed in front of the driver’s compartment. They were mounted side by side on a central steering pylon, which made them look like a single wheel. Behind the cockpit, still flanked by the air ducts, came two fuel tanks and finally, after a chamber where the air ducts met again, the engine compartment. Small horizontal stabilizers under the cockpit, which could be adjusted with the help of an electric actuator, helped keeping the vehicle’s nose section on the ground. Two small air brakes were mounted on the rear fuselage; these not only helped to reduce the vehicle’s speed, they could also be deployed in order to trim the aerodynamic downforce on the rear wheels. The latter ware carried on outriggers for a wide and stable track width and were covered in tight aerodynamic fairings, again made from fibre glass. The outriggers were furthermore swept back far enough so that the engine’s nozzle was placed in front of the rear wheel axis. This, together with a marked “nose-down” stance as well as a single swept fin on the rear above the afterburner nozzle with a brake parachute compartment, was to ensure stability and proper handling at expected speeds far in excess of 600 km/h (372 mph) without the use of the engine’s afterburner, and far more at full power.
Construction of ChADI 9-II lasted for more than another year, and in May 1986 the vehicle was rolled out and ready for initial trials at Chardiv, this time on the Chardiv State Aircraft Manufacturing Company’s runway. These non-public tests were successful and confirmed the soundness of the vehicle’s concept and layout. In the course of thorough tests until July 1987, ChADI 9-II was carefully pushed beyond the 400 km/h barrier and showed certain potential for more. This was the point when the vehicle was presented to the public (it could not be hidden due to the noisy trials within Chardiv’s city limits), and for this occasion (and marketing purposes) ChADI 9-II received a flashy livery in silver with red trim around the air intake and long the flanks and was officially christened with the more catchy title “„скорость“” (Skorost = Velocity).
Meanwhile, a potential area for serious high-speed trials had been identified with Lake Baskunchak, a salt sea near the Caspian Sea with flat banks that resembled the Bonneville Salt Flats in the USA. Lake Baskunchak became the site of further tests in 1988. Initially scheduled for May-July, the tests had to be postponed by six weeks due to heavy rain in the region, so that the sea would not build suitable dry salt banks for any safe driving tests. In late June the situation improved, and „скорость“ could finally take up its high speed tests.
During the following weeks the vehicle was gradually taken to ever higher speeds. During a test run on 8th of September, while travelling at roundabout 640 km/h (400 mph), one of the tail wheel fairings appeared to explode and the ensuing drag differences caused heavy oscillations that ended in a crash at 180 km/h (110 mph) with the vehicle rolling over and ripping the left rear wheel suspension apart.
The driver, LSA student and hobby rally driver Victor Barchenkov, miraculously left the vehicle almost unscathed, and the damage turned out to be only superficial. What had happened was an air pressure congestion inside of the wheel fairing, and the increasing revolutions of the wheels beyond 600 km/h caused small shock waves along the wheels, which eventually blew up the fairing, together with the tire. This accident stopped the 1988 trials, but not the work on the vehicle. Another disaster struck the LSA ChADI team when ChADI 9, which was still operated, crashed in 1988, too, and had to be written off completely.
In mid-1989 and with only a single high speed vehicle left, LSA team appeared again with „скорость“ at the shores of Lake Baskunchak – and this time the weather was more gracious and the track could be used from late June onwards. Analyzing last year’s accident and the gathered data, the vehicle had undergone repairs and some major modifications, including a new, anti-corrosive paintjob in light grey with red and white trim.
The most obvious change, though, was a completely re-shaped nose section: the original raked lower air intake lip had been considerably extended by almost 5 feet (the vehicle now had a total length of 49 ft 1 in/14,98 m) in order to enhance the downforce on the front wheels, and strakes along the lower nose ducted the airflow around the front wheels and towards the stabilizing fins. The central shock cone had been elongated and re-contoured, too, improving the airflow at high speeds.
New tireless all-aluminum wheels had been developed and mounted, because pressurized rubber tires, as formerly used, had turned out to be too unstable and unsafe. The central front wheels had received an additional aerodynamic fairing that prevented air ingestion into the lower fuselage, so that steering at high speeds became safer. The aerodynamic rear wheel fairings had by now been completely deleted and spoilers had been added to the rear suspension in order to keep the rear wheel on the ground at high speeds.
This time the goal was to push „скорость“ and the national land speed record in excess of 800 km/h (500 mph), and step by step the vehicle’s top speed was gradually increased. On August 15, an officially timed record attempt was made, again with Victor Barchenkov at the steering wheel. The first of the two obligatory runs within an hour was recorded at a very promising 846.961 km/h (526.277 mph), but, at the end of the second run, „скорость“ veered off and no time was measured. Even worse, the vehicle lost its parachute brakes and went out of control, skidding away from the dry race track into Lake Baskunchak’s wet salt sludge, where it hit a ground wave at around 200 mph (320 km/h) and was catapulted through the air into a brine pond where it landed on its right side and eventually sank. Again, pilot Victor Barchenkov remained mostly unharmed and was able to leave the car before it sank – but this fatal crash meant the end of the „скорость“ vehicle and the complete KhAGI 9-II project. Furthermore, the break-up of the Soviet Union at the same time prevented and further developments of high speed vehicles. The whereabouts of the „скорость“ wreck remain unclear, too, since no official attempt had been made to save the vehicle’s remains from Lake Baskunchak’s salt swamps.
The kit and its assembly:
This is another contribution to the late 2018 “Racing & Competition Group Build” at whatifmodelers.com. Since I primarily build aircraft in 1:72 scale, building a land speed record (LSR) vehicle from such a basis appeared like a natural choice. A slick streamliner? A rocket-powered prototype with Mach 1 potential? Hmmm… However, I wanted something else than the typical US or British Bonneville Salt Flats contender.
Inspiration struck when I remembered the real world high speed vehicle projects of LSA ChAGI in the former USSR, and especially the ill-fated, jet-powered ChADI 9, which looked a lot like Western, rocket-powered absolute LSR designs like The Blue Flame or Wingfoot Express 2. Another inspiration was a contemporary LSR vehicle called North American Eagle – basically a wingless F-104 Starfighter, put on wheels and sporting a garish, patriotic livery.
With this conceptual basis, the MiG-21 was quickly identified as the potential starting basis – but I wanted more than just a Fishbed sans wings and with some bigger wheels attached to it. I nevertheless wanted to retain the basic shape of the aircraft, but change the rest as good as possible with details that I have learned from reading about historic LSR vehicles (a very good source are the books by German author and LSR enthusiast Ferdinand C. W. Käsmann, which have, AFAIK, even been translated into English).
At the model’s core is a contemporary KP MiG-21MF, but it’s a hideous incarnation of the venerable Kovozávody Prostějov mold. While the wheels and the dashboard of this kit were surprisingly crisp, the fuselage halves did hardly match each other and some other parts like the landing gear covers could only be described as “blurred blobs”. Therefore it was no shame to slice the kit up, and the resulting kitbash with many donor parts and scratching almost became a necessity.
The MiG-21 fuselage and cockpit were more or less retained, the landing gear wells covered and PSR-ed. Fin, spine and the ventral stabilizer were cut away, and the attachment points for the wings and the horizontal stabilizers blended into the rest of the fuselage. Actually, only a few parts from the KP MiG-21 were eventually used.
The original shock cone in the air intake was used, but it was set further back into the nose opening – as an attachment point for a new, more organic shock cone which is actually the rear end of a drop tank from an Airfix 1:72 P-61 Black Widow. This detail was inspired by a real world benchmark: Art Arfons’ home-built “Green Monster” LSR car. This vehicle also inspired the highly modified air intake shape, which was scratched from the tail cone from a Matchbox 1:72 Blackburn Buccaneer – the diameter matched well with the MiG-21’s nose! With the new nose, I was able to retain the original MiG-21 layout, yet the shape and the extension forward changed the overall look enough to make it clear that this was not simply a MiG-21 on wheels.
With the spine gone, I also had to integrate a different, much smaller canopy, which came from an 1:144 Tornado. The cockpit opening had to be narrowed accordingly, and behind the canopy a new spine fairing was integrated – simply a piece from a streamlined 1:72 1.000 lb bomb plus lots of PSR.
Inside of the cockpit, a simpler seat was used, but the original cockpit tub and the dashboard were retained.
The large MiG-21 fin was replaced with a smaller piece, left over from an Amodel Kh-20 missile, with a scratched brake parachute fairing (cut from sprue material) placed under its rear. The exhaust nozzle was replaced, too, because the fit of the KP MiG-21’s rear end was abysmal. So I cut away a short piece and added an afterburner nozzle from a vintage 1:72 F-100, which fits well. Inside, the part’s rear wall was drilled open and extended inwards with a styrene tube.
The wheels of the vehicle come from an 1:72 Hasegawa “Panther with Schmalturm” tank kit – it comes not only with two turrets, but also with a second set of simplified track wheels. These had IMHO the perfect size and shape as massive aluminum wheels for the high speed vehicle.
For the front wheels, I used the thinner outer Panther wheels, and they were put, closely together, onto a central suspension pylon. This received a new “well” in the forward fuselage, with an internal attachment point. In order to streamline the front wheel installation (and also to change the overall look of the vehicle away from the MiG-21 basis), I added a scratched an aerodynamic fairing around it. This was made from tailored styrene strips, which were later filled and blended into the hull with putty.
The rear suspension was also fully scratched: the outriggers were made from styrene profiles while the wheel attachments were once part of an 1:35 tank kit suspension – I needed something to hold the three struts per side together. These parts look a bit large, but the vehicle is, after all, a Soviet design, so a little sturdiness may not be wrong, and I simply did not want to stick the wheels directly onto the outriggers. The rear wheels (in this case, the wider inner Panther track wheels with a central hub cover were used) also received a stabilizing notch around the contact surface, in an attempt to make them look slimmer than they actually are.
Final touches included the chines under the nose as well as spoilers on the rear suspension (both made from styrene profiles), and I added a pitot made from wire to the original MiG-21 angle of attack sensor fairing.
As an addition outside the model itself I also created a display base for the beauty pics, since I did not have anything at hand that would resemble the vastness of a flat and dry salt sea. The base is an 18x12” MDF board, on top of which I added a thin coat of white tile grout (which I normally use as a snow placebo, instead of plaster, which tends to absorb humidity over time and to become yellow). While the stuff was still wet I sprinkled some real salt onto the surface and wetted the whole affair with water sprays – hoping to create a flat yet structured surface with some glitter reflexes. And it actually worked!
Painting and markings:
I am not certain how ChADI 9 was painted (I assume overall silver), but I wanted for „скорость“ a little more color. Being a child of the Soviet era, red was a settled design element, but I thought that an all-red vehicle might have looked too cheesy. Other colors I considered were orange or white with blue trim, but did not find them to be appropriate for what I was looking. Eventually, I added some Russian Utilitarianism in the form of light grey for the upper hull (Humbrol 166, RAF Light Aircraft Grey), and the red (Humbrol 19) as a dark contrast around the complete air intake as well as the shock cone (somewhat inspired by the Green Monster #15 LSR vehicle), and then extended backwards into a narrowing cheatline along the flanks, which emphasizes the vehicle’s slender hull. For some more contrast between the two basic tones I later added thin white borders between them created with 2mm white decal stripes from TL Modellbau. Around the hull some bright red (Humbrol 238 Red Arrows Red) highlights as warning signs were added.
The vehicle’s afterburner section was painted with Modelmaster Steel Metallizer, the Panther wheels became Aluminum (Revell 99) with a black ink wash. Some black ink was also applied to the jet nozzle, so that the details became more pronounced, and some grinded graphite was used to enhance the burnt metal effect.
Since this would rather be an experimental car built and operated by a high school institute, and also operated in the Soviet Union, flashy sponsor markings would not be appropriate. Therefore I created some fictional marking at home with the help of PC software and printed them by myself. These designs included a fictional logo of the ChADI institute itself (created from a car silhouette drawing) and a logo for the vehicle’s title, “„скорость““. The latter was created from the cyrillic lettering, with some additions like the vehicle’s silhouette.
Unfortunately the production process for the home-made decals did not work properly – when coating the prints with gloss acrylic varnish the printer ink started to dissolve, bleeding magenta, so that the decals would look as if there was a red halo or glow around the otherwise black motifs. Thanks to the use of red in the vehicle’s overall design this flaw is not too apparent, so I stuck with the outcome and applied the decals to the car.
Beyond these basic markings, many stencils were added, including dull red inscriptions from an Italeri MiG-37 “Ferret” kit – finally, I found an expedient use for them! The Soviet flags on the fin came from an 1:144 Tu-144 airliner Braz Decal aftermarket sheet.
Finally, some panel lines were drawn onto the hull with a soft pencil and then the model was sealed with Italeri semi-gloss acrylic varnish. Just the black anti-glare panel in front of the windscreen became matt and the metallic rear section was left in “natural” finish.
I am very pleased with the outcome – the „скорость“ looks purposeful and does IMHO blend well into the line of spectacular USA and UK jet/rocket car designs that broke the 800 km/h barrier. I also find that, even though the MiG-21 ancestry is certainly there, the vehicle looks different enough so that the illusion that it was designed along the jet fighter’s lines (and not converted from one, like the real world “North American Eagle” which was built from an F-104 Starfighter) works well. I also think that the vehicle’s livery works well – it looks quite retro for a vehicle from the late Eighties, but that just adds to the “Soviet style”. An interesting project, outside of my normal comfort zone. :D
Painting and markings:
Finding a suitable and somewhat interesting – but still plausible – paint scheme was not easy. Taking the A-10 as benchmark, an overall light grey livery (with focus on low contrast against the sky as protection against ground fire) would have been a likely choice – and in fact the last operational American OV-10s were painted in this fashion. But in order to provide a different look I used the contemporary USAF V-22Bs and Special Operations MC-130s as benchmark, which typically carry a darker paint scheme consisting of FS 36118 from above, FS 36375 underneath (with a low, wavy waterline), plus low-viz markings. Not spectacular, but plausible – and very similar to the late r/w Colombian OV-10s.
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
The Northrop Grumman-IAI F-24 is the latest reincarnation of the USAF "Lightweight Fighter Program" which dates back to the 1950ies and started with the development of Northrop's F-5 "Freedom Fighter".
The 1st generation F-5 became very successful in the export market and saw a long line of development, including the much more powerful F-5E "Tiger II" and the F-20 Tigershark (initially called F-5G). Northrop had high hopes for the F-20 in the international market; however, policy changes following Ronald Reagan's election meant the F-20 had to compete for sales against aircraft like the F-16, the USAF's latest fighter design (which was politically favored). The F-20 development program was eventually abandoned in 1986 after three prototypes had been built and a fourth partially completed.
But this was not the end for Northrop’s Lightweight Fighter. In the early 1980s, two X-29As experimental aircraft were built by Grumman from two existing Northrop F-5A Freedom Fighter airframes. The Grumman X-29 was a testbed for forward-swept wings, canard control surfaces, and other novel aircraft technologies. The aerodynamic instability of this arrangement increased agility but required the use of computerized fly-by-wire control. Composite materials were used to control the aeroelastic divergent twisting experienced by forward-swept wings, also reducing the weight. The NASA test program continued from 1984 to 1991 and the X-29s flew 242 times, gathering valuable data and breaking ground for new aerodynamic technologies of 4th and 5th generation fighters.
Even though no service aircraft directly evolved from the X-29, its innovative FBW system as well as the new material technologies also opened the door for an updated F-20 far beyond the 1990ies. It became clear that ever expensive and complex aircraft could not be the answer to modern, asymmetrical warfare in remote corners of the world, with exploding development costs and just a limited number of aircraft in service that could not generate true economies of scale, esp. when their state-of-the-art design would not permit any export.
Anyway, a global market for simpler fighter aircraft was there, as 1st generation F-16s as well as the worldwide, aging F-5E fleet and types of Soviet/Russian origin like the MiG-29 provided the need for a modern, yet light and economical jet fighter. Contemporary types like the Indian HAL Tejas, the Swedish Saab Gripen, the French Dassault Rafale and the Pakistani/Chinese FC-1/JF-17 ”Thunder” proved this trend among 4th - 4.5th generation fighter aircraft.
Northrop Grumman (Northrop bought Grumman in 1994) initiated studies and basic design work on a respective New Lightweight Fighter (NLF) as a private venture in 1995. Work on the NLF started at a slow pace, as the company was busy with re-structuring.
The idea of an updated lightweight fighter was fueled by another source, too: Israel. In 1998 IAI started looking in the USA for a development partner for a new, light fighter that would replace its obsolete Kfir fleet and partly relieve its F-16 and F-15 fleet from interception tasks. The domestic project for that role, the IAI Lavi, had been stillborn, but lots of its avionics and research were still at hand and waited for an airframe for completion.
The new aircraft for the IAF was to be superior to the MiG-29, at least on par with the F-16C/D, but easier to maintain, smaller and overall cheaper. Since the performance profiles appeared to be similar to what Northrop Grumman was developing under the NLF label, the US company eventually teamed up with IAI in 2000 and both started the mutual project "Namer" (=נמר, “Tiger” in Hebrew), which eventually lead to the F-24 I for the IAF which kept its project name for service and to the USAF’s F-24A “Tigershark”.
The F-24, as the NLF, was based on the F-20 airframe, but outwardly showed only little family heritage, onle the forward fuselage around the cockpit reminds of the original F-5 design . Many aerodynamic details, e. g. the air intakes and air ducts, were taken over from the X-29, though, as the experimental aircraft and its components had been developed for extreme maneuvers and extra high agility. Nevertheless, the X-29's forward-swept wing was considered to be too exotic and fragile for a true service aircraft, but the F-24 was to feature an Active Aeroelastic Wing (AAW) system.
AAW Technology integrates wing aerodynamics, controls, and structure to harness and control wing aeroelastic twist at high speeds and dynamic pressures. By using multiple leading and trailing edge controls like "aerodynamic tabs", subtle amounts of aeroelastic twist can be controlled to provide large amounts of wing control power, while minimizing maneuver air loads at high wing strain conditions or aerodynamic drag at low wing strain conditions. This system was initially tested on the X-29 and later on the X-53 research aircraft, a modified F-18, until 2006.
Both USAF and IAF versions feature this state-of-the-art aerodynamic technology, but it is uncertain if other customers will receive it. While details concerning the F-24's system have not been published yet, it is assumed that its AAW is so effective that canard foreplanes could be omitted without sacrificing lift and maneuverability, and that drag is effectively minimized as the wing profile can be adjusted according to the aircraft’s speed, altitude, payload and mission – much like a VG wing, but without its clumsy and heavy swiveling mechanism which has to bear high g forces. As a result, the F-24 is, compared to the F-20, which could carry an external payload of about 3.5 tons, rumored to be able to carry up to 5 tons of ordnance.
The delta wing shape proved to be a perfect choice for the required surface and flap actuators inside of the wings, and it would also offer a very good compromise between lift and drag for a wide range of performance. Anyway, there was one price to pay: in order to keep the wing profile thin and simple, the F-24’s landing gear retracts into the lower fuselage, leaving the aircraft with a relatively narrow track.
Another major design factor for the outstanding performance of this rather small aircraft was weight reduction and structural integrity – combined with simplicity, ruggedness and a modular construction which would allow later upgrades. Instead of “going big” and expensive, the new F-24 was to create its performance through dedicated loss of weight, which was in some part also a compensation for the AAW system in the wings and its periphery.
Weight was saved wherever possible, e .g. a newly developed, lightweight M199A1 gatling gun. This 20mm cannon is a three-barreled, heavily modified version of the already “stripped” M61A2 gun in the USAF’s current F-18E and F-22. One of the novel features is a pneumatic drive instead of the traditional electric mechanism, what not only saves weight but also improves trigger response. The new gun weighs only a mere 65kg (the six-barreled M61A2 weighs 92kg, the original M61A1 112 kg), but still reaches a burst rate of fire of 1.800 RPM (about 800 RPM under cyclic fire, standard practice is to fire the cannon in 30 to 50-round bursts, though) and a muzzle velocity of 1.050 metres per second (3,450 ft/s) with a PGU-28/B round.
While the F-16 was and is still made from 80% aluminum alloys and only from 3% composites, the F-24 makes major use of carbon fiber and other lightweight materials, which make up about 40% of the aircraft’s structure, plus an increased share of Titanium and Magnesium alloys. As a consequence and through many other weight-saving measures like keeping stealth capabilities to a minimum (even though RAM was deliberately used and many details designed to have a natural low radar signature, resulting in modest radar cross-section (RCS) reductions), a single, relatively small engine, a fuel-efficient F404-GE-402 turbofan, is enough to make the F-24 a fast and very agile aircraft, coupled with a good range. The F-24’s thrust/weight ratio is considerably higher than 1, and later versions with a vectored thrust nozzle (see below) will take this level of agility even further – with the pilot becoming the limiting factor for the aircraft’s performance.
USAF and IAF F-24s are outfitted with Northrop Grumman's AN/APG-80 Active Electronically Scanned Array (AESA) radar, also used in the F-16 Block 60 aircraft. Other customers might only receive the AN/APG-68, making the F-24 comparable to the F-16C/D.
The first prototype, the YF-24, flew on 8th of March 2008, followed by two more aircraft plus a static airframe until summer 2010. In early 2011 the USAF placed an initial order of 101 aircraft (probably also to stir export sales – the earlier lightweight fighters from Northrop suffered from the fact that the manufacturer’s country would not use the aircraft in its own forces). These initial aircraft will replace older F-16 in the interceptor role, or free them for fighter bomber tasks. The USN and USMC also showed interest in the aircraft for their aggressor squadrons, for dissimilar air combat training. A two-seater, called the F-24B, is supposed to follow soon, too, and a later version for 2020 onwards, tentatively designated F-24C, is to feature an even stronger F404 engine and a 3D vectoring nozzle.
Israel is going to produce its own version domestically from late 2014 on, which will exclusively be used by the IAF. These aircraft will be outfitted with different avionics, built by Elta in Israel, and cater to national requirements which focus more on multi-purpose service, while the USAF focusses with its F-24A on aerial combat and interception tasks.
International interest for the F-24A is already there: in late 2013 Grumman stated that initial talks have been made with various countries, and potential export candidates from 2015 on are Taiwan, Singapore, Thailand, Finland, Norway, Australia and Japan.
General F-24A characteristics:
Crew: 1 pilot
Length: 47 ft 4 in (14.4 m)
Wingspan: 27 ft 11.9 in / 8.53 m; with wingtip missiles (26 ft 8 in/ 8.13 m; without wingtip missiles)
Height: 13 ft 10 in (4.20 m)
Wing area: 36.55 m² (392 ft²)
Empty weight: 13.150 lb (5.090 kg)
Loaded weight: 15.480 lb (6.830 kg)
Max. take-off weight: 27.530 lb (12.500 kg)
Powerplant:
1× General Electric F404-GE-402 turbofan with a dry thrust of 11,000 lbf (48.9 kN) and 17,750 lbf (79.2 kN) with afterburner
Performance
Maximum speed: Mach 2+
Combat radius: 300 nmi (345 mi, 556 km); for hi-lo-hi mission with 2 × 330 US gal (1,250 L) drop tanks
Ferry range: 1,490 nmi (1715 mi, 2759 km); with 3 × 330 US gal (1,250 L) drop tanks
Service ceiling: 55,000 ft (16,800 m)
Rate of climb: 52,800 ft/min (255 m/s)
Wing loading: 70.0 lb/ft² (342 kg/m²)
Thrust/weight: 1.09 (1.35 with loaded weight & 50% fuel)
Armament
1× 20 mm (0.787 in) M199A1 3-barreled Gatling cannon in the lower fuselage with 400 RPG
Eleven external hardpoints (two wingtip tails, six underwing hardpoints, three underfuselage hardpoints) and a total capacity of 11.000 lb (4.994 kg) of missiles (incl. AIM 9 Sidewinder and AIM 120 AMRAAM), bombs, rockets, ECM pods and drop tanks for extended range.
The kit and its assembly:
A spontaneous project. This major kitbash was inspired by fellow user nighthunter at whatifmodelers.com, who came up with a profile of a mashed-up US fighter, created “out of boredom”. The original idea was called F-21C, and it was to be a domestic successor to the IAI Kfirs which had been used by the US as aggressor aircraft in USN and USMC service for a few years.
As a weird(?) coincidence I had many of the necessary ingredients for this fictional aircraft in store, even though some parts and details were later changed. This model here is an interpretation of the original design. The idea was spun further, and the available parts that finally went into the model also had some influence on design and background.
I thank nighthunter for sharing the early ideas, inviting me to take the design to the hardware stage (sort of…) and adapting my feedback into new design sketches, too, which, in return, inspired the model building process.
Well, what went into this thing? To cook up a F-24 à la Dizzyfugu you just need (all in 1:72):
● Fuselage from a Hasegawa X-29, including the cockpit and the landing gear
● Fin and nose cone from an Italeri F-16A
● Inner wings from a (vintage) Hasegawa MiG-21F
● Outer wings from a F-4 (probably a J, Hasegawa or Fujimi)
The wing construction deviates from nighthunter’s original idea. The favorite ingredients would have been F-16XL or simple Mirage III wings, but I found the composite wing to be more attractive and “different”. The big F-16XL wings, despite their benefit of a unique shape, might also have created scale/size problems with a F-20 style fuselage? So I built hybrid wings: The MiG-21 landing gear wells were filled with putty and the F-4 outer wings simply glued onto the MiG inner wing sections, which were simply cut down in span. It sounds like an unlikely combo, but these parts fit together almost perfectly! In order to hide the F-4 origins I modified them to carry wingtip launch rails, though, which were also part of nighthunter’s original design.
The AAW technology detail mentioned in the background came in handy as it explains the complicated wing shape and the fact that the landing gear retracts into the fuselage, not into the wings, which would have been more plausible… Anyway, there’s still room for a simpler export version, with Mirage III or Kfir C.2/7 wings, and maybe canards?
Using the X-29 as basis also made fitting the new wings onto the area-ruled fuselage pretty easy, as I could use the wing root parts from the X-29 to bridge the gap. The original, forward-swept wings were just cut away, and the remains used as consoles for the new hybrid delta wings. Took some SERIOUS putty work, but the result is IMHO fine.
The bigger/square X-29 air intakes were taken over, and they change the look of the aircraft, making it look less F-5-ish than a true F-20 fuselage. For the same reason I kept the large fairing at the fin base, combining it with a bigger F-16 tail, though, as a counter-balance to the new, bigger wings. Again, the F-16 fin was/is part of nighthunter’s idea, so the model stays true to the original concept.
For the same reason I omitted the original X-29 nose, which is rather pointy, sports vanes and a large sensor boom. The F-16 nose was a plausible choice, as the AN/APG-80 is also carried by late Fighting Falcons, and its shape fits well, too.
All around the hull, some small details like radar warning sensors, pitots and air scoops were added. Not really necessary, but such thing add IMHO to the overall impression of such a fictional aircraft beyond the prototype stage.
Cockpit and landing gear were taken OOB, I just added a pilot figure and slightly modified the seat.
The ordnance was puzzled together from the scrap box, the AIM-9Ls come from the same F-4 kit which donated its outer wings, the AIM-120s come from an Italeri NATO weapons kit. The drop tanks belong to an F-16.
Painting and markings:
At first I considered an F-24I in IAF markings, or even a Japanese aircraft, but then reverted to one of nighthunter’s initial, simple ideas: an USAF aircraft in the “Hill II” paint scheme (F-16 style), made up from three shades of gray (FS 36118, 36270 and 36375) with low-viz markings and stencils. Dutch/Turkish NF-5A/Bs in the “Hill II” scheme were used as design benchmarks, too. It’s a simple livery, but on this delta wing aircraft it looks pretty interesting. I used enamels, what I had at hand: Humbrol 127 and 126, and Modelmaster's 1723.
A light black ink wash was applied, in order to em,phasize the engraved panel lines, in contrast to that, panels were manually highlighted through dry-brushed, lighter shades of gray (Humbrol 27, 166 and 167).
“Hill II” also adds to a generic, realistic touch for this whif. Doing an exotic air force thing is rather easy, but creating a convincing whif for a huge military machinery like the USAF’s takes more subtlety, I think.
The cockpit was painted in medium Gray (Dark Gull Grey, FS 36231, Humbrol 140), as well as the radome. The landing gear and the air intakes were painted white. The radome was painted with Revell 47 and dry-brushed with Humbrol 140.
Decals were puzzled together from various USAF aircraft, including sheets from an Airfix F-117, an Italeri F-15E and even an Academy OV-10D.
Tadah: a hardware tribute to an idea, born from boredom - and the aircraft does not look even bad at all? What I wanted to achieve was to make the F-24 neither look like a F-20, nor a Saab Gripen clone, as the latter comes close in overall shape, size and design.
Some background:
The Leyland “Type D” was one of several armoured vehicle types designed in 1940 on the orders of Lord Beaverbrook and Admiral Sir Edward Evans, as a part of the hasty measures taken by the British Government following the Dunkirk evacuation and the threat of invasion.
The “Type D” was a heavy scout car, intended to replace the Lanchester 6x4 and Rolls-Royce 4x2 armoured cars, which dated back to the WWI era and the early interwar period. While they were reliable vehicles and still in active service, their off-road capabilities, armament and armour left a lot to be desired – esp. in the face of the modern German army and its effective equipment.
Certainly inspired by the German SdKfz. 231/232 family of heavy 8x8 armoured reconnaissance vehicles, Leyland added a fourth axle to better distribute the vehicle’s weight and a drivetrain to the front axle to a modified “Retriever” 3-ton 6x4 lorry chassis, resulting in a 6x8 layout. The rigid axles were mounted on leaf springs front and rear with hydraulic dampers, both front axles were steerable. The engine, a water-cooled 6-litre, 4-cylinder overhead camshaft petrol engine with 73 hp, was, together with the gearbox, relocated to the rear, making room for a fully enclosed crew compartment in the front section with two access doors in the vehicle’s flanks. The crew consisted of four, with the driver seat at the front. The gunner and commander (the commander at the right and gunner at the left) stood behind them into the turret or were sitting on simple leather belts, and behind them was a working station for a radio operator.
The tall, cylindrical turret was welded and electrically traversed, but it lacked a commander cupola. All the armament was mounted in the turret and consisted of a quick-firing two-pounder (40mm) cannon and a coaxial 7.92 mm Besa machine gun. The faceted hull was, like the turret, welded from homogenous steel armour plates, and a straightforward design. Maximum armour thickness was 15 mm at the front, 8 mm on the sides, and 10 mm on the back, with 6 mm and 5 mm of armour on the top and bottom respectively. It had been designed to provide protection from small arms fire and HE fragments, but it was ineffective against heavier weapons. This armour was a compromise, since better protection had resulted in a higher weight and overstrained the Type D’s lorry chassis and engine. The armoured cabin was mounted to the chassis at only four points - front, rear and sides - to give some flexibility but with precautions against excessive movement.
The Type D’s prototype was designed, built, tested and approved just within 3 months. Deliveries of the first production vehicles commenced only 2 months later, just in time to become involved in the North Africa campaign. All early production vehicles were immediately sent to Egypt and took part in Operation Compass and the Western Desert Campaign.
It comes as no surprise that the Type D – developed and produced in a hurry and thrown into battle in an environment it had not been designed for – initially failed, and even when the worst deficits had been rectified the Type D’s performance remained mediocre at best. The biggest problems concerned the engine’s cooling system, its low power output and therefore poor speed, and the vehicle’s poor off-road performance, esp. on soft ground like sand. The vehicle’s suspension was quickly overburdened in heavy terrain and the tall turret placed its center of gravity very high, making the Type D prone to topple over to a side when slope angles were taken too slightly. Poor cabin ventilation was another problem that became even more apparent under the African sun.
Initial losses were high: more than half of the Type Ds lost in North Africa during the early months of 1941 were abandoned vehicles which got stuck or had to be left behind due to mechanical failures. The rest had fallen easy prey to German and Italian attacks – the Type D was not only very vulnerable even to the Panzer II’s 20 mm autocannon, its thin top armour made it in the open desert also very vulnerable to air attacks: German MG 131 machine gun rounds easily punched the vehicle’s shell, and even lighter weapons were a serious threat to the tall Type D.
As soon as the first sobering field reports returned back to Great Britain, Leyland immediately devised major improvements. These were introduced to newly produced Mk. II vehicles and partly retrofitted to the early Mk. I vehicles in field workshops. One of these general improvements were new desert wheels and tires, which were considerably wider than the original lorry wheels and featured a flat pattern that better distributed the vehicle’s weight on soft and unstable ground, what considerably improved the Type D’s performance on sand. A kit with a more effective radiator and a bigger engine cooling system was quickly developed and sent to the units in Africa, too. The kit did not fully solve the overheating problems of the early Mk. I, but improved the situation. From the outside, retrofitted Type Ds could be recognized by a raised engine cover with enlarged air intakes. Due to the limits of the chassis the armour level was not improved, even though the crews and field workshops tried to attach improvised additional protective measures like spare track links from tanks or sandbags – with mixed results, though. The armament was not updated either, except for an optional mount for an additional light anti-aircraft machine gun on the turret and kits for smoke dischargers on the turret’s flanks.
The Type D Mk. II, which gradually replaced the Mk. I on the production lines from March 1941 on, furthermore received a different and much more effective powerplant, a Leyland 7-litre six-cylinder diesel engine with an output of 95 hp (70 kW). It not only provided more power and torque, markedly improving the vehicle’s off-road performance, it also had a better fuel economy than the former lorry petrol engine (extending range by 25%), and the fuel itself was less prone to ignite upon hits or accidents.
During its short career the Leyland Type D was primarily used in the North African Campaign by the 11th Hussars and other units. After the invasion of Italy, a small number was also used in the Southern European theatre by reconnaissance regiments of British and Canadian infantry divisions. A few vehicles were furthermore used for patrol duty along the Iran supply route.
However, the Type D was not popular, quickly replaced by smaller and more agile vehicles like the Humber scout car, and by 1944 outdated and retired. Leyland built a total of 220 Type Ds of both versions until early 1943, whilst an additional 86 Mk. IIs were built by the London, Midland and Scottish Railway's Derby Carriage Works.
Specifications:
Crew: Four (commander, gunner, driver, co-driver/radio operator/loader)
Weight: 8.3 tons
Length: 20 ft 5 in (6,30 m)
Width: 7 ft 5 in (2,27 m)
Height: 9 ft 2¾ in (2,81 m)
Ground clearance: 12 in (30.5 cm)
Turning radius: 39 ft (12 m)
Suspension: Wheel, rigid front and rear axles;
4x8 rear-wheel drive with selectable additional 6x8 front axle drive
Fuel capacity: 31 imp gal (141 litres)
Armour:
5–15 mm (0.2 – 0.6 in)
Performance:
Maximum road speed: 35 mph (56 km/h)
Sustained road speed: 30 mph (48 km/h)
Cross country speed: up to 20 mph (32 km/h)
Operational range: 250 mi (400 km)
Power/weight: 11,44 hp/ton
Engine:
1× Leyland 7-litre six-cylinder diesel engine, 95 hp (70 kW)
Transmission:
4-speed, with a 2-speed auxiliary box
Armament:
1× QF Two-pounder (40 mm/1.57 in) cannon with 94 rounds
1× 7.92 mm Besa machine gun mounted co-axially with 2.425 rounds
2-4× smoke dischargers, mounted on the turret
The kit and its assembly:
This fictional British WWII vehicle might look weird, but it has a real-world inspiration: the Marmon Herrington Mk. VI armoured heavy scout car. This vehicle only existed as a prototype and is AFAIK still preserved in a museum in South Africa – and upon a cursory glance it looks like an SdKfz. 232 with the shrunk turret from a “Crusader” cruiser tank with a short-barreled six pounder gun. It looks like a fake! Another reason for this build was a credible “canvas” for the application of the iconic “Caunter Scheme”, so that I placed the Type D in a suitable historic time frame.
The Type D was not supposed to be a truthful Marmon Herrington Mk. VI copy, so I started with a 1:72 “First to Fight” SdKfz. 232. This is a simple and sturdy tabletop wargaming model, but it is quite accurate, goes together well, is cheap and even comes with a metal gun barrel. It’s good value for the money, even though the plastic is a little thick and soft.
However, from this basis things changed in many ways. I initially wanted to shorten the hull, but the new wheels (see below) made this idea impossible. Nevertheless, the front glacis plate was completely re-modeled with 2C putty in the style of the Humber scout car, and the crew cabin was extended backwards with the same method. New observation slits had to be scratched with styrene profile material. The engine bay received a raised cover, simulating extra air intakes. The turret was replaced with a resin piece for an A13 “Valentine” Mk.III tank (S&S Models), which had a perfect size and even came with a suitable gun.
The suspension was taken OOB, but the wheels were replaced with two aftermarket resin sets (Silesian Models) with special Allied desert wheels/tires from 1941, they originally belong to a Chevrolet truck and are markedly bigger and wider than the SdKfz. 232 wheels. However, they had to be modified to match the rest of the suspension, and their size necessitated a thorough modification of the mudguards. They were not only mounted 1mm higher on the flanks, their sides, normally consisting of closed skirts, were fully opened to make sufficient room for the new wheels to change the vehicle’s look. They were furthermore separated into four two-wheel covers and their front and rear ends were slightly bent upwards. Sufficient space for the side doors had to be made, too. The spare wheels that came with the respective sets were mounted to the front (again Humber-style) and onto the engine bay cover, under a scratched tarpaulin (made from paper tissue drenched with white glue).
To conceal the SdKfz. 232 heritage even more I added more equipment to the vehicle’s flanks. Tool boxed were added to the engine bay’s flanks, some more tools to the fenders, scratched tarpaulin rolls above the side doors and I tried to scratch PSP plates with aluminum foil rubbed against a flight stand diorama floor made from PSP. Not perfect, but all the stuff livens the Type D up. A new exhaust (IIRC from a Panzer IV) was added to the rear and bumpers scratched from wire and mounted low unto the hull.
Painting and markings:
Finally, the British, so-called “Caunter Scheme”, a great source of misinterpretation not only in museums but also by modelers who have painted their British tanks in dubious if not garish colors. I do not claim that my interpretation of the colors is authentic, but I did some legwork and tried to improvise with my resources some tones that appear plausible (at least to me), based on descriptions and contemporary references.
The pattern itself was well defined for each vehicle type, and I adapted a M3 “Stuart” pattern for the model. All three basic colors, “Light Stone”, “Silver Grey” and “Slate”, were guesstimated. “Slate” is a relatively dark and greenish tone, and I chose Tamiya XF-65 (Field Grey). “Light Stone” is rather yellow-ish, light sand tone, and I used Humbrol 103 (Cream). Some sources suggest the use of Humbrol 74 (linen) as basis, but that is IMHO too yellow-ish and lacks red. The most obscure tone is “Silver Grey”, and its depictions range from a pale and dull light olive drab over blue-grey, greenish grey to bright light blue and even turquoise. In fact, this tone must have had a greenish-blue hue, and so I mixed Humbrol 145 (FS 35237) with maybe Humbrol 94 in a 3:1 ratio to achieve an “in between” tone, which is hard to describe - maybe as a greenish sand-grey? A funny effect of the colors in direct contrast is that the XF-65 appeared with an almost bluish hue! Overall, the choice of colors seems to work, though, and the impression is good.
Painting was, as usual, done with brushes and, due to the vehicle’s craggy shape, free-handedly. After basic painting the model received a light washing with a mix of black ink and brown, and some post-shading was done with light grey (Revell 75) and Hemp (Humbrol 168). Decals came from the scrap box, and before an overall protective coat of matt acrylic varnish was applied, the model received an additional treatment with thinned Revell 82 (supposed to be RAF Dark Earth but it is a much paler tone).
A more demanding build than one would expect at first sight. The SdKafz. 232 is unfortunately still visible, but the desert wheels, including the spare wheels, change the look considerably, and the British replacement turret works well, too. Using the tabletop model basis was not a good move, though, because everything is rather solid and somewhat blurry, esp. the many molded surface details, which suffered under the massive body work. On the other side, the Counter Scheme IMHO turned out well, esp. the colors, even though the slender hull made the adaptation of the pattern from a (much shorter) tank not easy. But most of the critical areas were hidden under extra equipment, anyway. 😉
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based on historical facts. BEWARE!
Some background:
The ZSU-62 (Zenitnaya Samokhodnaya Ustanovka = anti-aircraft self-propelled mount) was a potential successor for the Soviet ZSU-57-2 SPAAG, developed in parallel with the ZSU-23-4. But unlike its brethren, the ZSU-62 was only produced in limited numbers, but it received limited fame during its late operational second-line career when it was successfully deployed to Afghanistan.
The ZSU’62’s roots were laid down just after WWII with the ZSU-57-2. The first prototype (Objekt 500) was completed in the summer of 1950, production began in 1955. The vehicle was built using a modified chassis of the new T-54 tank and was armed with two S-68 57 mm cannons – at the time the most powerful guns mounted in an anti-aircraft system. The modification of the chassis included reducing the road wheels per side to four and using lighter armor. The ZSU-57-2 was powered by a V-54 12-cylinder diesel engine providing 520 hp. Despite the weight of 28 tons, thanks to the strong engine, the maximum speed was 50 km/h. With a fuel load of 850 liters, the operational range was 420 km.
Each cannon had a (theoretical) rate of fire of 240 rounds per minute with a muzzle velocity of 1,000 m/s. Maximum horizontal range was 12 km (with an effective range against ground targets of up to 4 km / 2.5 miles), maximum vertical range was 8.8 km (with a maximum effective vertical range of 4.5 km / 14,750 ft). The effective range, when used against flying targets, was 6 km. Armor-piercing rounds were able to penetrate 110 mm armor at 500 m or 70 mm armor at 2,000 m (at 90° impact angle).
Rate of fire was 120 RPM, but this was only a theoretical number, because each gun was fed with separate four-shot magazines so that only bursts and no continuous fire was possible. Both fragmentation and armor-piercing ammunition were available. The ZSU-57-2’s total ammunition load was 300 rounds, with 176 rounds being stored inside the turret and the remaining in the hull. To efficiently operate the vehicle, six crew members were needed: commander, gunner, loader, driver, and two sight adjusters.
The ZSU-57-2 had serious firepower that could easily destroy any aerial target but had many issues. The greatest weaknesses were the lack of modern range-finding and radar equipment, the impossibility of engaging targets at night or while on the move, the lack of protection for its crew (being open-topped), and low ammunition count. Nevertheless, more than 2.000 ZSU-57-2s were eventually built. While many would be sold to other Warsaw Pact countries, like East Germany, Romania, and Poland, its service within the Soviet Army was limited, because of its many operational deficiencies.
This led in 1957 to a new SPAAG program for the Soviet Army and initiated the development of the ZSU-23-4 "Shilka", the ZSU-37-2 "Yenisei" and a new ZSU-57-2 “Kama” (all baptized after Russian rivers) with the outlook to replace the original ZSU-57-2 by the mid to late Sixties. These vehicles were intended for AA defense of military facilities, troops, and mechanized columns on the march. “Shilka” was intended for close range defense (esp. against low-flying attack helicopters) while the more powerful guns of "Yenisei" and “Kama” were judged to be effective at covering the inner dead-zone of Soviet surface-to-air missile systems between 1.000 and 6.000 m altitude, with a focus on attack aircraft and more heavily armored targets.
All designs were based on existing tracked chassis’ and featured completely enclosed turrets as well as a proven radar system, the RPK-2 "Tobol" radar (NATO designator: "Gun Dish"). The ZSU-37-2 was soon dropped in favor of the higher firepower and range of the 57mm guns, so that both “Shilka” and “Kama” entered the hardware stage at Omsk Works No. 174.
However, “Kama” lagged behind the “Shilka” development because several technical and conceptual problems had to be solved. For instance, even though the armament still consisted of two proven S-68 cannon, the weapons’ mount had to be developed new to fit into the enclosed cast turret. To save space, both weapons were now mounted directly side-by-side. Their feeding system was furthermore changed from magazines to belts, what considerably improved the SPAAG’s firepower and now allowed continuous fire at a higher rate of fire of 150 RPM per gun. For sufficient flexibility, a belt-switching mechanism allowed to choose between two different ammunition supplies: each gun had supplies of 220 and 35 rounds, normally occupied with HE fragmentation and armor-piercing tracer (AP-T) shells, respectively, against aerial and armored ground targets. Changing between the two feeds just took a couple of seconds.
The twin S-68s were recoil-operated and the whole mount (without feeding mechanism) weighed 4,500 kg. The guns had a recoil of between 325 and 370 mm, and each air-cooled gun barrel, fitted with a muzzle brake, was 4365 mm long (76.6 calibers). The weapons could be elevated or depressed between −5° and +80° at a speed of between 0.3° and 32° per second, while the turret could traverse 360° at a speed of between 0.2° and 52° per second. Drive was from a direct current electric motor and universal hydraulic speed gears.
The “Kama” crew numbered four: driver (in the hull), commander, gunner and radar operator (all in the turret). The heavy guns, their ammunition supply and the radar system had to be housed in a turret, together with decent armor, and this resulted in a considerable volume and weight (a single 57 mm projectile alone already weighed 2.8 kg). Several layouts were tested, but weight and volume of the systems made it impossible to mate the “Kama” turret on the T-54/55 chassis, which was available in ample numbers for conversions. The limiting factor was the T-54/55’s relatively small turret bearing diameter.
To solve this problem, the “Kama” designers chose the more modern T-62 as chassis basis. It was outwardly very similar to the former T-54/55, but it featured a 2245 mm turret ring (250 mm more than the T-54/55’s bearing) that was able to take a much bigger/wider/heavier turret than its predecessor. Furthermore, the T-62 represented the Soviet Army’s “state of the art”. The choice of the T-62 ensured many component and maintenance communalities with the operational MBT and it also meant that the “Kama” SPAAG could operate in the same environment and the same pace as the T-62. In order to save costs and development time, the T-62 chassis was taken “as is”, with the same engine and armor level as the MBT. There were only minor changes in the electric components, e. g. a more powerful generator for the radar system.
In this combination, “Kama” eventually entered tests and state acceptance trials as “Object 503”. During these tests, some final changes to layout and equipment were made; for instance, the RPK-2’s dish-shaped radome received a retractable mount that allowed the antenna to be raised higher above the turret in order to avoid clutter and to protect the antenna when the vehicle was on the move.
The tests lasted until 1963 and were successful, so that an initial batch of 100 serial production tanks was ordered the same year. In order to avoid confusion with the old ZSU-57-2 from 1955, the new tank with the same armament was pragmatically designated ZSU-62.
Alas, while production of the “Kama” turrets ran up to be mated with T-62 hulls at the Uralvagonzavod factory in Nizhny Tagil, the ZSU-62’s future had already been sealed by the fast pace of technical developments: in the meantime MANPADS (Man Portable Air Defense System) had taken the medium-range SPAAG’s place and a foot soldier could now fulfill the same mission as an expensive and bulky 40 ton tank, so that the medium range/altitude gap between the ZSU-23-4 (which had already entered service) and heavier surface-to-air missile systems would not be filled with a dedicated vehicle anymore. The ZSU-62 had become superfluous the moment it had reached the first frontline units, and large-scale production was immediately stopped.
However, the initial production run was nevertheless completed until 1967, and the ZSU-62s were primarily sent to training units, where the vehicles were – due to their turrets’ shape – nicknamed “черепаха“ (turtle).
This could have been the ZSU-62’s fate, but the Soviet Union’s intervention in Afghanistan brought it back into frontline service. Since December 1978, the Afghan government called on Soviet forces, which were introduced in the spring and summer of 1979 to provide security and to assist in the fight against the mujaheddin rebels. After the killing of Soviet technicians in Herat by rioting mobs, the Soviet government sold several Mi-24 helicopters to the Afghan military and increased the number of military advisers in the country to 3,000. In April 1979, the Afghan government requested that the USSR send 15 to 20 helicopters with their crews to Afghanistan, and on June 16, the Soviet government responded and sent a detachment of tanks, BMPs, and crews to guard the government in Kabul and to secure the Bagram and Shindand airfields. In response to this request, an airborne battalion arrived at the Bagram Air Base on July 7, and ground forces were deployed from Turkmenistan territory into northern Afghanistan, securing the supply lines.
Experience in the mountainous Afghan landscape soon made the shortcomings of standard MBTs apparent, namely their lack of gun elevation, esp. when attacking hideouts and posts in high locations. While the ZSU-23-4 “Shilka” was readily available and used against such targets, it lacked range and firepower to take out protected posts at distances more than 2.000 m away. This led to the decision to send roundabout 40 ZSU-62s to the Afghan theatre of operations, where they were primarily used against ground targets – both fortifications as well as armored and unarmored vehicles. The weapons’ precision and range proved to be valuable assets, with devastating effect, and the vehicles remained in active service until 1985 when their role was more and more taken over by helicopters and aircraft like the new Su-25. The ZSU-62 were, nevertheless, still employed for aerial airfield defense and as a deterrent against ground attacks.
With the USSR’s withdrawal from Afghanistan in 1988 and 1989, the last operational ZSU-62s were retired. In the training units, the vehicles had already been replaced by ZSU-23-4s by 1984.
Specifications:
Crew: Four (commander, gunner, radar operator, driver)
Weight: 37 t (41 short tons; 36 long tons)
Length: 6.63 m (21 ft 9 in) hull only
9.22 m (30 ft 3½ in) with barrel in forward position
Width: 3.30 m (10 ft 10 in)
Height: 3.88 m (12 ft 9 in) with search radar fully extended,
2.84 m (9 ft 3¾ in) with search radar stowed
Suspension: Torsion bar
Ground clearance: 425 mm (16.7 in)
Fuel capacity: 960 l
Armor:
20 mm (hull bottom) – 102 mm (hull front)
Performance:
Speed: 50 km/h (31 mph) on roads,
40 km/h (25 mph) cross country)
Range: 450 km (280 mi) on road;
650 km (400 mi) with two 200 l (53 US gal; 44 imp gal) extra fuel tanks;
320 km (200 mi) cross-country
450 km (280 mi) with two 200-liter extra fuel tanks
Climbing ability: 0.7 m (2.3')
Maximum climb gradient: 30°
Trench crossing ability: 2.5 m (8.2')
Fording depth: 1.0 m (3.3')
Operational range: 500 km (310 mi)
Power/weight: 14.5 hp/tonne (10.8 kW/tonne)
Engine:
1x V-55 12-cylinder 4-stroke one-chamber 38.88 liter water-cooled diesel engine
with 581 hp (433 kW) at 2,000 rpm
Transmission:
Hydromechanical
Armament:
2× S-68 57mm (1.5 in) cannon with 255 rounds each
The kit and its assembly:
This fictional tank model came to be as a classic what-if, based on the question “what could have been a successor of the Soviet ZSU-57-2 SPAAG?”. Not an existential question that comes to your mind frequently, but it made me wonder – also because the real-world successor, the ZSU-23-4 “Shilka”, lacked the ZSU-57-2’s range and large-caliber firepower.
From this conceptual basis I decided to retain the 57mm twin guns, add an RPK-2 radar and mount these into a fully enclosed turret. The latter became a leftover M48 turret, which was suitably bulky, and the gun mount was taken from a Modelcollect E-75 SPAAG. However, both were heavily modified: the gun mount lost its boxy armor protection, just the brass barrels and the joint at the base were retained, the rest was scratched from styrene bits and wire. To accept the much taller weapon mount, the turret front had to be re-sculpted with putty, resulting in a boxier shape with steeper side walls – but the whole affair looks very organic. A simpler commander cupola was used and the whole radar dish arrangement on the rear roof was scratched, too.
The hull came from a Trumpeter T-62, just for the reasons explained in the background: the T-54/55 had a relatively small turret ring, and this caused severe development problems, because the MBT could not take a bigger turret and with it a more powerful cannon. Since this SPAAG would have been developed a couple of years later than the T-54/55, its successor, the T-62, appeared logical, and the “marriage” with the M48 turret worked like a charm. Even the turret’s adapter had the same diameter as the hull opening, I just had to modify the notches that hold it in place! The hull itself remained unmodified.
Painting and markings:
I wanted to place this SPAAG into the Afghanistan theatre of operations, and this was historically not very easy since I had to bridge some fifteen years of service to make this idea work. However, I found a story for the background, and the model received an appropriate paint scheme, based on real world vehicles around 1980 (actually from a BMP-1 operated in northern Afghanistan).
The camouflage consists of three tones, a pale/greyish sand, an olive drab tone and some contrasts in a dark, dull brown – it reminds of the US Army’s more complex MERDC scheme. The paints became Humbrol 167 (Hemp), Tamiya XF-62 (Olive Drab) and Humbrol 98 (Chocolate), even though the green appears darker than expected due to the high contrast with the sand tone.
The model received an overall washing with dark brown, highly thinned acrylic paint, and some dry-brushing with cream, faded olive drab and light grey. The few markings/decals were taken from the T-62 kit, and everything was sealed with matt acrylic varnish before the lower areas were finally dusted with a greyish-sand brown mix of artist pigments, simulating dust.
A plausible result, even though a cast turret might not appear to be a natural choice for a SPAAG? But the AMX-30 SPAAG from 1969 had a very similar design and there was a German prototype called “MATADOR” (a Gepard forerunner from 1968) that had a turret of similar shape, too. However, the kitbashed/scratched turret looks really good and convincing, and the T-62 hull is a great match for it in shape, size and timeframe. The ZSU-62 turned out way better than hoped for! :D
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
The Douglas F3D Skyknight (later designated F-10 Skyknight) was a United States twin-engined, mid-wing jet fighter aircraft manufactured by the Douglas Aircraft Company in El Segundo, California. The F3D was designed as a carrier-based all-weather night fighter and saw service with the United States Navy and United States Marine Corps. The mission of the F3D-2 was to search out and destroy enemy aircraft at night.
The F3D was not intended to be a typical sleek and nimble dogfighter, but as a standoff night fighter, packing a powerful radar system and a second crew member. It originated in 1945 with a US Navy requirement for a jet-powered, radar-equipped, carrier-based night fighter. The Douglas team led by Ed Heinemann designed around the bulky air intercept radar systems of the time, with side-by-side seating for the pilot and radar operator. The result was an aircraft with a wide, deep, and roomy fuselage. Instead of ejection seats, an escape tunnel was used.
As a night fighter that was not expected to be as fast as smaller daylight fighters, the expectation was to have a stable platform for its radar system and the four 20 mm cannon mounted in the lower fuselage. The F3D was, however, able to outturn a MiG-15 in an inside circle. The fire control system in the F3D-1 was the Westinghouse AN/APQ-35.
The AN/APQ-35 was advanced for the time, a combination of three different radars, each performing separate functions: an AN/APS-21 search radar, an AN/APG-26 tracking radar, both located in the nose, and an AN/APS-28 tail warning radar. The complexity of this vacuum tube-based radar system, which was produced before the advent of semiconductor electronics, required intensive maintenance to keep it operating properly.
The F3D Skyknight was never produced in great numbers but it did achieve many firsts in its role as a night fighter over Korea. While it never achieved the fame of the North American F-86 Sabre, it did down several Soviet-built MiG-15s as a night fighter over Korea with only one air-to-air loss of its own against a Chinese MiG-15 on the night of 29 May 1953.
In the years after the Korean War, the F3D was gradually replaced by more powerful aircraft with better radar systems. The F3D's career was not over though; its stability and spacious fuselage made it easily adaptable to other roles. The Skyknight played an important role in the development of the radar-guided AIM-7 Sparrow missile in the 1950s which led to further guided air-to-air missile developments.
In 1954, the F3D-2M was the first U.S. Navy jet aircraft to be fitted with an operational air-to-air missile: the Sparrow I,an all weather day/night BVR missile that used beam riding guidance for the aircrew to control the flight of the missile. Only 38 aircraft (12 F3D-1Ms, and 16 F3D-2Ms) were modified to use the missiles, though.
One of the F3D's main flaws, which it shared with many early jet aircraft, was its lack of power and performance. Douglas tried to mend this through a radical redesign: The resulting F3D-3 was the designation assigned to a swept-winged version (36° sweep at quarter chord) of the Skyknight. It was originally to be powered by the J46 turbojet, rated at 4.080 lbf for takeoff, which was under development but suffered serious trouble.
This led to the cancellation of the J46, and calculated performance of the F3D-3 with the substitute J34 was deemed insufficient. As an alternative the aircraft had to be modified to carry two larger and longer J47-GE-2 engines, which also powered the USN's FJ-2 "Fury" fighter.
This engine's thrust of 6.000 pounds-force (27 kN) at 7,950 rpm appeared sufficient for the heavy, swept-wing aircraft, and in 1954 an order for 287 production F3D-3s was issued, right time to upgrade the new type with the Sparrow I.
While the F3D-3's outline resembled that of its straight wing predecessors, a lot of structural changes had to be made to accommodate the shifted main wing spar, and the heavy radar equipment also took its toll: the gross weight climbed by more than 3 tons, and as a result much of the gained performance through the stronger engines and the swept wings was eaten away.
Maximum internal fuel load was 1.350 US gallons, plus a further 300 in underwing drop tanks. Overall wing surface remained the same, but the swept wing surfaces reduced the wing span.
In the end, thrust-to-weight ratio was only marginally improved and in fact, the F3D-3 had a lower rate of climb than the F3D-2, its top speed at height was only marginally higher, and stall speed climbed by more than 30 mph, making carrier landings more complicated.
It's equipment was also the same - the AN/APQ-35 was still fitted, but mainly because the large radar dish offered the largest detection range of any carrier-borne type of that time, and better radars that could match this performance were still under construction. Anyway, the F3D-3 was able to carry Sparrow I from the start, and this would soon be upgraded to Sparrow III (which became the AIM-7), and it showed much better flight characteristics at medium altitude.
Despite the ,many shortcomings the "new" aircraft represented an overall improvement over the F3D-2 and was accepted for service. Production of the F3D-3 started in 1955, but technology advanced quickly and a serious competitor with supersonic capability appeared with the McDonnell F3H Demon and the F4D Skyray - much more potent aircraft that the USN immediately preferred to the slow F3Ds. As a consequence, the production contract was cut down to only 102 aircraft.
But it came even worse: production of the swept wing Skyknight already ceased after 18 months and 71 completed airframes. Ironically, the F3D-3's successor, the F3H and its J40 engine, turned out to be more capricious than expected, which delayed the Demon's service introduction and seriously hampered its performance, so that the F3D-3 kept its all weather/night fighter role until 1960, and was eventually taken out of service in 1964 when the first F-4 Phantom II fighters appeared in USN service.
In 1962 all F3D versions were re-designated into F-10, the swept wing F3D-3 became the F-10C. The straight wing versions were used as trainers and also served as an electronic warfare platform into the Vietnam War as a precursor to the EA-6A Intruder and EA-6B Prowler, while the swept-wing fighters were completely retired as their performance and mission equipment had been outdated. The last F-10C flew in 1965.
General characteristics
Crew: two
Length: 49 ft (14.96 m)
Wingspan: 42 feet 5 inches (12.95 m)
Height: 16 ft 1 in (4.90 m)
Wing area: 400 ft² (37.16 m²)
Empty weight: 19.800 lb (8.989 kg)
Loaded weight: 28,843 lb (13.095 kg)
Max. takeoff weight: 34.000 lb (15.436 kg)
Powerplant:
2× General Electric J47-GE-2 turbojets, each rated at 6.000 lbf (26,7 kN) each
Performance
Maximum speed: 630 mph (1.014 km/h) at sea level, 515 mph (829 km/h) t (6,095 m)
Cruise speed: 515 mph (829 km/h) at 40,000 feet
Stall speed: 128 mph (206 km/h)
Range: 890 mi (1.433 km) with internal fuel; 1,374 mi, 2,212 km with 2× 300 gal (1.136 l) tanks
Service ceiling: 43.000 ft (13.025 m)
Rate of climb: 2,640 ft/min (13,3 m/s)
Wing loading: 53.4 lb/ft² (383 kg/m²)
Thrust/weight: 0.353
Armament
4× 20 mm Hispano-Suiza M2 cannon, 200 rpg, in the lower nose
Four underwing hardpoints inboard of the wing folding points for up to 4.000 lb (1.816 kg)
ordnance, including AIM-7 Sparrow air-to-air missiles, 11.75 in (29.8cm) Tiny Tim rockets, two
150 or 300 US gal drop tanks or bombs of up to 2.000 lb (900 kg) caliber, plus four hardpoints
under each outer wing for a total of eight 5" HVARs or eight pods with six 2 3/4" FFARs each
The kit and its assembly:
Another project which had been on the list for some years now but finally entered the hardware stage. The F3D itself is already a more or less forgotten aircraft, and there are only a few kits available - there has been a vacu kit, the Matchbox offering and lately kits in 1:72 and 1:48 by Sword.
The swept wing F3D-3 remained on the drawing board, but would have been a very attractive evolution of the tubby Skyknight. In fact, the swept surfaces resemble those of the A3D/B-66 a Iot, and this was the spark that started the attempt to build this aircraft as a model through a kitbash.
This model is basically the Matchbox F3D coupled with wings from an Italeri B-66, even though, being much bigger, these had to be modified.
The whole new tail is based on B-66 material. The fin's chord was shortened, though, and a new leading edge (with its beautiful curvature) had to be sculpted from 2C putty. The vertical stabilizers also come from the B-66, its span was adjusted to the Skyknight's and a new root intersection was created from styrene and putty, so that a cross-shaped tail could be realized.
The tail radar dish was retained, even though sketches show the F3D-3 without it.
The wings were take 1:1 from the B-66 and match well. They just had to be shortened, I set the cut at maybe 5mm outwards of the engine pods' attachment points. They needed some re-engraving for the inner flaps, as these would touch the F3D-3's engines when lowered, but shape, depth and size are very good for the conversion.
On the fuselage, the wings' original "attachment bays" had to be filled, and the new wings needed a new position much further forward, directly behind the cockpit, in order to keep the CoG.
One big issue would be the main landing gear. On the straight wing aircraft it retracts outwards, and I kept this arrangement. No detail of the exact landing gear well position was available to me, so I used the Matchbox parts as stencils and placed the new wells as much aft as possible, cutting out new openings from the B-66 wings.
The OOB landing gear was retained, but I added some structure to the landing gear wells with plastic blister material - not to be realistic, just for the effect. A lot of lead was added in the kit's nose section, making sure it actually stands on the front wheel.
The Matchbox Skyknight basically offers no real problems, even though the air intake design leaves, by tendency some ugly seams and even gaps. I slightly pimped the cockpit with headrests, additional gauges and a gunsight, as well as two (half) pilot figures. I did not plan to present the opened cockpit and the bulbous windows do not allow a clear view onto the inside anyway, so this job was only basically done. In fact, the pilots don't have a lower body at all...
Ordnance comprises of four Sparrow III - the Sparrow I with its pointed nose could have been an option, too, but I think at the time of 1960 the early version was already phased out?
Painting and markings:
This was supposed to become a typical USN service aircraft of the 60ies, so a grey/white livery was predetermined. I had built an EF-10B many years ago from the Matchbox kit, and the grey/white guise suits the Whale well - and here it would look even better, with the new, elegant wings.
For easy painting I used semi matt white from the rattle can on the lower sides (painting the landing gear at the same time!), and then added FS 36440 (Light Gull Grey, Humbrol 129) with a brush to the upper sides. The radar nose became semi matt black (with some weathering), while the RHAWS dish was kept in tan (Humbrol 71).
In order to emphasize the landing gear and the respective wells I added a red rim to the covers.
The cockpit interior was painted in dark grey - another factor which made adding too many details there futile, too...
The aircraft's individual marking were to be authentic, and not flamboyant. In the mid 50ies the USN machines were not as colorful as in the Vietnam War era, that just started towards the 60ies.
The markings I used come primarily from an Emhar F3H Demon, which features no less than four(!) markings, all with different colors. I settled for a machine of VF-61 "Jolly Rogers", which operated from the USS Saratoga primarily in the Mediterranean from 1958 on - and shortly thereafter the unit was disbanded.
I took some of the Demon markings and modified them with very similar but somewhat more discrete markings from VMF-323, which flew FJ-4 at the time - both squadrons marked their aircraft with yellow diamonds on black background, and I had some leftover decals from a respective Xtradecal sheet in the stash.
IMHO a good result with the B-66 donation parts, even though I am not totally happy with the fin - it could have been more slender at the top, and with a longer, more elegant spine fillet, but for that the B-66 fin was just too thick. Anyway, I am not certain if anyone has ever built this aircraft? I would not call the F3D-3 elegant or beautiful, but the swept wings underline the fuselage's almost perfect teardrop shape, and the thing reminds a lot of the later Grumman A-6 Intruder?
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
The Soviet Laboratory of High-Speed Automobiles (LSA ChADI, today the Chardiv National Automobile and Highway University) was founded in 1953. One of the laboratory’s founders was Vladimir Nikitin, a famous racer not only inside the Soviet Union but also around the world. The main purpose of Vladimir Nikitin’s of was to build the fastest car in the world. This idea of creating race cars became the purpose of the laboratory and has been continued by students of Nikitin throughout the years, with research and prototypes in various fields of car propulsion.
The first car created in LSA by students was ChADI 2 in 1961. The body of the car was made of fiberglass, the first time that this material was used for a car body in the Soviet Union. This technology was improved and later used in mass-produced cars. Another famous LSA car was ChADI 7. To create it, Nikitin and his students used airplane wing elements as car body material and used the engine from a helicopter to power it. The highest speed of ChADI 7 – 400 kilometers per hour – was recorded on an airport runway near Chardiv in 1968, and it was at that time the fastest car in the Soviet Union, setting the national land speed record.
After this successful vehicle, Vladimir Nikitin started a new, even more ambitious project: a speed record car with the jet engine from a high performance airplane! The name of this project was ChADI 9, and it was ambitious. This time Nikitin and his team used a Tumansky RD-9 turbojet engine with a dry thrust of 25.5 kN (5,730 lbf), the same engine that powered the supersonic Mikoyan-Gurewich MiG-19 fighter plane. He expected that this needle-shaped car would be able to break the absolute land speed record, which meant supersonic speed at level zero of almost 1.200 kilometers an hour. The car was finished in 1981, but unfortunately ChADI 9 never participated in any race and no official top speed result was ever recorded. This had initially a very practical reason: in the 1980’s there were simply no tires in the USSR that could be safely used at the expected speeds in excess of 400 km/h, and there was furthermore no track long enough for a serious test drive in the Soviet Union! In consequence, ChADI 9 had to be tested on the runway of a military airport in the proximity of Chardiv, outfitted with wheels and tires from a MiG-19, but these were not ideal for prolonged high speeds. Film footage from these tests later appeared in a 1983 movie called “IgLa”.
The Automotive Federation of the United States even invited ChADI 9 to participate in an official record race in the USA, but this did not happen either, this time for political reasons. Nevertheless, the main contribution of this car was gathering experience with powerful jet engines and their operations in a ground vehicle, as well as experience with car systems that could withstand and operate at the expected high levels of speed, and the vehicle was frequently tested until it was destroyed in high speed tests in 1988 (see below).
ChADI 9 was not the end of Nikitin’s strife for speed (and the prestige associated with it). The know-how that the design team had gathered in the first years of testing ChADI 9 were subsequentially integrated into the LSA’s ultimate proposal not only to break the national, but also the absolute land speed record: with a new vehicle dubbed ChADI 9-II. This car was a completely new design, and its name was deliberately chosen in order to secure project budgets – it was easier to gain support for existing (and so far successful) projects rather than found new ones and convince superior powers of their value and success potential.
ChADI 9-II’s conceptual phase was launched in 1982 and it was basically a scaled-up evolution of ChADI 9, but it featured some significant differences. Instead of the RD-9 turbojet, the new vehicle was powered by a much more potent Tumansky R-25-300 afterburning turbojet with a dry thrust of 40.21 kN (9,040 lbf) and 69.62 kN (15,650 lbf) with full afterburner. This new engine (used and proven in the MiG-21 Mach 2 fighter) had already been thoroughly bench-tested by the Soviet Laboratory of High-Speed Automobiles in 1978, on an unmanned, tracked sled.
However, the development of ChADI 9-II and its details took more than two years of dedicated work by LSA ChADI’s students, and in 1984 the design was finally settled. The new vehicle was much bigger than its predecessor, 44 ft 10 in long, 15 ft 6¾ in wide, and 9 ft 10¾ in high (13.67 m by 4,75 m by 3,02 m), and it weighed around 9,000 lb (4 t). Its construction was based on a steel tube frame with an integrated security cell for the driver and an aluminum skin body, with some fibre glass elements. While ChADI 9’s slender cigar-shaped body with a circular diameter and the tricycle layout were basically retained, the front end of ChADI 9-II and its internal structure were totally different: instead of ChADI 9’s pointed nose, with the cockpit in the front and ahead of the vehicle’s front wheel and a pair of conformal (but not very efficient) side air intakes, ChADI 9-II featured a large, single orifice with a central shock cone. A small raked lower lip was to prevent FOD to the engine and act at the same time as a stabilizing front spoiler. The driver sat under a tight, streamlined canopy, the bifurcated air intake ducts internally flanking the narrow cockpit. Two steerable front wheels with a very narrow track were installed in front of the driver’s compartment. They were mounted side by side on a central steering pylon, which made them look like a single wheel. Behind the cockpit, still flanked by the air ducts, came two fuel tanks and finally, after a chamber where the air ducts met again, the engine compartment. Small horizontal stabilizers under the cockpit, which could be adjusted with the help of an electric actuator, helped keeping the vehicle’s nose section on the ground. Two small air brakes were mounted on the rear fuselage; these not only helped to reduce the vehicle’s speed, they could also be deployed in order to trim the aerodynamic downforce on the rear wheels. The latter ware carried on outriggers for a wide and stable track width and were covered in tight aerodynamic fairings, again made from fibre glass. The outriggers were furthermore swept back far enough so that the engine’s nozzle was placed in front of the rear wheel axis. This, together with a marked “nose-down” stance as well as a single swept fin on the rear above the afterburner nozzle with a brake parachute compartment, was to ensure stability and proper handling at expected speeds far in excess of 600 km/h (372 mph) without the use of the engine’s afterburner, and far more at full power.
Construction of ChADI 9-II lasted for more than another year, and in May 1986 the vehicle was rolled out and ready for initial trials at Chardiv, this time on the Chardiv State Aircraft Manufacturing Company’s runway. These non-public tests were successful and confirmed the soundness of the vehicle’s concept and layout. In the course of thorough tests until July 1987, ChADI 9-II was carefully pushed beyond the 400 km/h barrier and showed certain potential for more. This was the point when the vehicle was presented to the public (it could not be hidden due to the noisy trials within Chardiv’s city limits), and for this occasion (and marketing purposes) ChADI 9-II received a flashy livery in silver with red trim around the air intake and long the flanks and was officially christened with the more catchy title “„скорость“” (Skorost = Velocity).
Meanwhile, a potential area for serious high-speed trials had been identified with Lake Baskunchak, a salt sea near the Caspian Sea with flat banks that resembled the Bonneville Salt Flats in the USA. Lake Baskunchak became the site of further tests in 1988. Initially scheduled for May-July, the tests had to be postponed by six weeks due to heavy rain in the region, so that the sea would not build suitable dry salt banks for any safe driving tests. In late June the situation improved, and „скорость“ could finally take up its high speed tests.
During the following weeks the vehicle was gradually taken to ever higher speeds. During a test run on 8th of September, while travelling at roundabout 640 km/h (400 mph), one of the tail wheel fairings appeared to explode and the ensuing drag differences caused heavy oscillations that ended in a crash at 180 km/h (110 mph) with the vehicle rolling over and ripping the left rear wheel suspension apart.
The driver, LSA student and hobby rally driver Victor Barchenkov, miraculously left the vehicle almost unscathed, and the damage turned out to be only superficial. What had happened was an air pressure congestion inside of the wheel fairing, and the increasing revolutions of the wheels beyond 600 km/h caused small shock waves along the wheels, which eventually blew up the fairing, together with the tire. This accident stopped the 1988 trials, but not the work on the vehicle. Another disaster struck the LSA ChADI team when ChADI 9, which was still operated, crashed in 1988, too, and had to be written off completely.
In mid-1989 and with only a single high speed vehicle left, LSA team appeared again with „скорость“ at the shores of Lake Baskunchak – and this time the weather was more gracious and the track could be used from late June onwards. Analyzing last year’s accident and the gathered data, the vehicle had undergone repairs and some major modifications, including a new, anti-corrosive paintjob in light grey with red and white trim.
The most obvious change, though, was a completely re-shaped nose section: the original raked lower air intake lip had been considerably extended by almost 5 feet (the vehicle now had a total length of 49 ft 1 in/14,98 m) in order to enhance the downforce on the front wheels, and strakes along the lower nose ducted the airflow around the front wheels and towards the stabilizing fins. The central shock cone had been elongated and re-contoured, too, improving the airflow at high speeds.
New tireless all-aluminum wheels had been developed and mounted, because pressurized rubber tires, as formerly used, had turned out to be too unstable and unsafe. The central front wheels had received an additional aerodynamic fairing that prevented air ingestion into the lower fuselage, so that steering at high speeds became safer. The aerodynamic rear wheel fairings had by now been completely deleted and spoilers had been added to the rear suspension in order to keep the rear wheel on the ground at high speeds.
This time the goal was to push „скорость“ and the national land speed record in excess of 800 km/h (500 mph), and step by step the vehicle’s top speed was gradually increased. On August 15, an officially timed record attempt was made, again with Victor Barchenkov at the steering wheel. The first of the two obligatory runs within an hour was recorded at a very promising 846.961 km/h (526.277 mph), but, at the end of the second run, „скорость“ veered off and no time was measured. Even worse, the vehicle lost its parachute brakes and went out of control, skidding away from the dry race track into Lake Baskunchak’s wet salt sludge, where it hit a ground wave at around 200 mph (320 km/h) and was catapulted through the air into a brine pond where it landed on its right side and eventually sank. Again, pilot Victor Barchenkov remained mostly unharmed and was able to leave the car before it sank – but this fatal crash meant the end of the „скорость“ vehicle and the complete KhAGI 9-II project. Furthermore, the break-up of the Soviet Union at the same time prevented and further developments of high speed vehicles. The whereabouts of the „скорость“ wreck remain unclear, too, since no official attempt had been made to save the vehicle’s remains from Lake Baskunchak’s salt swamps.
The kit and its assembly:
This is another contribution to the late 2018 “Racing & Competition Group Build” at whatifmodelers.com. Since I primarily build aircraft in 1:72 scale, building a land speed record (LSR) vehicle from such a basis appeared like a natural choice. A slick streamliner? A rocket-powered prototype with Mach 1 potential? Hmmm… However, I wanted something else than the typical US or British Bonneville Salt Flats contender.
Inspiration struck when I remembered the real world high speed vehicle projects of LSA ChAGI in the former USSR, and especially the ill-fated, jet-powered ChADI 9, which looked a lot like Western, rocket-powered absolute LSR designs like The Blue Flame or Wingfoot Express 2. Another inspiration was a contemporary LSR vehicle called North American Eagle – basically a wingless F-104 Starfighter, put on wheels and sporting a garish, patriotic livery.
With this conceptual basis, the MiG-21 was quickly identified as the potential starting basis – but I wanted more than just a Fishbed sans wings and with some bigger wheels attached to it. I nevertheless wanted to retain the basic shape of the aircraft, but change the rest as good as possible with details that I have learned from reading about historic LSR vehicles (a very good source are the books by German author and LSR enthusiast Ferdinand C. W. Käsmann, which have, AFAIK, even been translated into English).
At the model’s core is a contemporary KP MiG-21MF, but it’s a hideous incarnation of the venerable Kovozávody Prostějov mold. While the wheels and the dashboard of this kit were surprisingly crisp, the fuselage halves did hardly match each other and some other parts like the landing gear covers could only be described as “blurred blobs”. Therefore it was no shame to slice the kit up, and the resulting kitbash with many donor parts and scratching almost became a necessity.
The MiG-21 fuselage and cockpit were more or less retained, the landing gear wells covered and PSR-ed. Fin, spine and the ventral stabilizer were cut away, and the attachment points for the wings and the horizontal stabilizers blended into the rest of the fuselage. Actually, only a few parts from the KP MiG-21 were eventually used.
The original shock cone in the air intake was used, but it was set further back into the nose opening – as an attachment point for a new, more organic shock cone which is actually the rear end of a drop tank from an Airfix 1:72 P-61 Black Widow. This detail was inspired by a real world benchmark: Art Arfons’ home-built “Green Monster” LSR car. This vehicle also inspired the highly modified air intake shape, which was scratched from the tail cone from a Matchbox 1:72 Blackburn Buccaneer – the diameter matched well with the MiG-21’s nose! With the new nose, I was able to retain the original MiG-21 layout, yet the shape and the extension forward changed the overall look enough to make it clear that this was not simply a MiG-21 on wheels.
With the spine gone, I also had to integrate a different, much smaller canopy, which came from an 1:144 Tornado. The cockpit opening had to be narrowed accordingly, and behind the canopy a new spine fairing was integrated – simply a piece from a streamlined 1:72 1.000 lb bomb plus lots of PSR.
Inside of the cockpit, a simpler seat was used, but the original cockpit tub and the dashboard were retained.
The large MiG-21 fin was replaced with a smaller piece, left over from an Amodel Kh-20 missile, with a scratched brake parachute fairing (cut from sprue material) placed under its rear. The exhaust nozzle was replaced, too, because the fit of the KP MiG-21’s rear end was abysmal. So I cut away a short piece and added an afterburner nozzle from a vintage 1:72 F-100, which fits well. Inside, the part’s rear wall was drilled open and extended inwards with a styrene tube.
The wheels of the vehicle come from an 1:72 Hasegawa “Panther with Schmalturm” tank kit – it comes not only with two turrets, but also with a second set of simplified track wheels. These had IMHO the perfect size and shape as massive aluminum wheels for the high speed vehicle.
For the front wheels, I used the thinner outer Panther wheels, and they were put, closely together, onto a central suspension pylon. This received a new “well” in the forward fuselage, with an internal attachment point. In order to streamline the front wheel installation (and also to change the overall look of the vehicle away from the MiG-21 basis), I added a scratched an aerodynamic fairing around it. This was made from tailored styrene strips, which were later filled and blended into the hull with putty.
The rear suspension was also fully scratched: the outriggers were made from styrene profiles while the wheel attachments were once part of an 1:35 tank kit suspension – I needed something to hold the three struts per side together. These parts look a bit large, but the vehicle is, after all, a Soviet design, so a little sturdiness may not be wrong, and I simply did not want to stick the wheels directly onto the outriggers. The rear wheels (in this case, the wider inner Panther track wheels with a central hub cover were used) also received a stabilizing notch around the contact surface, in an attempt to make them look slimmer than they actually are.
Final touches included the chines under the nose as well as spoilers on the rear suspension (both made from styrene profiles), and I added a pitot made from wire to the original MiG-21 angle of attack sensor fairing.
As an addition outside the model itself I also created a display base for the beauty pics, since I did not have anything at hand that would resemble the vastness of a flat and dry salt sea. The base is an 18x12” MDF board, on top of which I added a thin coat of white tile grout (which I normally use as a snow placebo, instead of plaster, which tends to absorb humidity over time and to become yellow). While the stuff was still wet I sprinkled some real salt onto the surface and wetted the whole affair with water sprays – hoping to create a flat yet structured surface with some glitter reflexes. And it actually worked!
Painting and markings:
I am not certain how ChADI 9 was painted (I assume overall silver), but I wanted for „скорость“ a little more color. Being a child of the Soviet era, red was a settled design element, but I thought that an all-red vehicle might have looked too cheesy. Other colors I considered were orange or white with blue trim, but did not find them to be appropriate for what I was looking. Eventually, I added some Russian Utilitarianism in the form of light grey for the upper hull (Humbrol 166, RAF Light Aircraft Grey), and the red (Humbrol 19) as a dark contrast around the complete air intake as well as the shock cone (somewhat inspired by the Green Monster #15 LSR vehicle), and then extended backwards into a narrowing cheatline along the flanks, which emphasizes the vehicle’s slender hull. For some more contrast between the two basic tones I later added thin white borders between them created with 2mm white decal stripes from TL Modellbau. Around the hull some bright red (Humbrol 238 Red Arrows Red) highlights as warning signs were added.
The vehicle’s afterburner section was painted with Modelmaster Steel Metallizer, the Panther wheels became Aluminum (Revell 99) with a black ink wash. Some black ink was also applied to the jet nozzle, so that the details became more pronounced, and some grinded graphite was used to enhance the burnt metal effect.
Since this would rather be an experimental car built and operated by a high school institute, and also operated in the Soviet Union, flashy sponsor markings would not be appropriate. Therefore I created some fictional marking at home with the help of PC software and printed them by myself. These designs included a fictional logo of the ChADI institute itself (created from a car silhouette drawing) and a logo for the vehicle’s title, “„скорость““. The latter was created from the cyrillic lettering, with some additions like the vehicle’s silhouette.
Unfortunately the production process for the home-made decals did not work properly – when coating the prints with gloss acrylic varnish the printer ink started to dissolve, bleeding magenta, so that the decals would look as if there was a red halo or glow around the otherwise black motifs. Thanks to the use of red in the vehicle’s overall design this flaw is not too apparent, so I stuck with the outcome and applied the decals to the car.
Beyond these basic markings, many stencils were added, including dull red inscriptions from an Italeri MiG-37 “Ferret” kit – finally, I found an expedient use for them! The Soviet flags on the fin came from an 1:144 Tu-144 airliner Braz Decal aftermarket sheet.
Finally, some panel lines were drawn onto the hull with a soft pencil and then the model was sealed with Italeri semi-gloss acrylic varnish. Just the black anti-glare panel in front of the windscreen became matt and the metallic rear section was left in “natural” finish.
I am very pleased with the outcome – the „скорость“ looks purposeful and does IMHO blend well into the line of spectacular USA and UK jet/rocket car designs that broke the 800 km/h barrier. I also find that, even though the MiG-21 ancestry is certainly there, the vehicle looks different enough so that the illusion that it was designed along the jet fighter’s lines (and not converted from one, like the real world “North American Eagle” which was built from an F-104 Starfighter) works well. I also think that the vehicle’s livery works well – it looks quite retro for a vehicle from the late Eighties, but that just adds to the “Soviet style”. An interesting project, outside of my normal comfort zone. :D
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based on historical facts. BEWARE!
Some background:
The Indian „Samudree Baaj“ (समुद्री बाज, Sea Hawk) was a highly modified, navalized version of the British BAE Systems Hawk land-based training jet aircraft, which had been manufactured under license by Hindustan Aeronautics Limited (HAL). The first indigenously built Hawk Mk. 132 trainer was delivered in 2008 to the Indian Air Force, and the type has since then been updated with indigenous avionics into the “Hawk-I” Mk. 132 from 2020 onwards. The aircraft’s Rolls Royce Adour Mk 871 engine was also license-built by HAL, and the company had experience from a wide range of aircraft projects in the past.
The Samudree Baaj project was initiated in 2006 by the Indian Navy, as part of the long historic plan to provide the Indian Navy with a fully capable aircraft carrier. This plan had been initiated in 1989, when India announced a plan to replace its ageing British-built aircraft carriers, INS Vikrant and INS Viraat (ex-HMS Hermes), with two new 28,000-ton Air Defence Ships (ADS) that would operate the BAe Sea Harrier aircraft. The first vessel was to replace Vikrant, which was set to decommission in early 1997. Construction of the ADS was to start at the Cochin Shipyard (CSL) in 1993 after the Indian Naval Design Organisation had translated this design study into a production model. Following the 1991 economic crisis, the plans for construction of the vessels were put on hold indefinitely.
In 1999, then-Defence Minister George Fernandes revived the project and sanctioned the construction of the Project “71 ADS”. By that time, given the ageing Sea Harrier fleet, the letter of intent called for a carrier that would carry more modern jet fighters. In 2001, CSL released a graphic illustration showing a 32,000-ton STOBAR (Short Take-Off But Arrested Recovery) design with a pronounced ski jump. The aircraft carrier project finally received formal government approval in January 2003. By then, design updates called for a 37,500-ton carrier to operate the MiG-29K. India opted for a three-carrier fleet consisting of one carrier battle group stationed on each seaboard, and a third carrier held in reserve, in order to continuously protect both its flanks, to protect economic interests and mercantile traffic, and to provide humanitarian platforms in times of disasters, since a carrier can provide a self-generating supply of fresh water, medical assistance or engineering expertise to populations in need for assistance.
In August 2006, then-Chief of the Naval Staff, Admiral Arun Prakash stated that the designation for the vessel had been changed from Air Defence Ship (ADS) to Indigenous Aircraft Carrier (IAC). The euphemistic ADS had been adopted in planning stages to ward off concerns about a naval build-up. Final revisions to the design increased the displacement of the carrier from 37,500 tons to over 40,000 tons. The length of the ship also increased from 252 metres (827 ft) to 262 metres (860 ft).
It was at this time that, beyond the MiG-29K, primarily a carrier-capable trainer and also a light (and less costly) strike aircraft would be needed. With the running production of the Hawk Mk. 132 for the Indian Air Force and BAE Systems’ connection and experience to the USA and McDonnell/Boeing’s adaptation of the Hawk as the US Navy’s carrier-capable T-45 trainer, HAL was instructed to develop a suitable aircraft family on the Hawk’s basis for the new carriers.
HAL’s Samudree Baaj is a fully carrier-capable version of the British Aerospace Hawk Mk. The Hawk had not originally been designed to perform carrier operations, so that numerous modifications were required, such as the extensive strengthening of the airframe to withstand the excessive forces imposed by the stresses involved in catapult launches and high sink-rate landings, both scenarios being routine in aircraft carrier operations.
The aerodynamic changes of the aircraft, which were mutually developed by HAL and BAE Systems, included improvements to the low-speed handling characteristics and a reduction in the approach speed. Most notable amongst the changes made to the Hawk's design were extended flaps for better low-speed handling, along with the addition of spoilers on the wings to reduce lift and strakes on the fuselage which improved airflow and stabilizer efficiency.
Other, less obvious modifications included a reinforced airframe, the adoption of a more robust and widened landing gear, complete with a catapult tow bar attachment to the oleo strut of the new two-wheel nose gear design, and an arresting hook. The tail fin was extended by 1 foot (12 in, 30.5 cm) to compensate for the loss of the Hawk’s ventral stabilizing strakes. To make room for the arrester hook, the original ventral air brake was split and re-located to the flanks, similar to the USN’s T-45 trainer.
At the time of the Samudree Baaj’s design, the exact catapult arrangement and capacity on board of India’s new carriers was not clear yet – even more so, since the MiG-29K and its powerful engines might have made a catapult obsolete. Therefore, the Samudree Baaj was designed to be operable either with a ski jump ramp (in the style of the Russian Kiev class carriers, of which India had purchased one as INS Vikramaditya) or with only minimal launch support within the projected STOBAR concept, which included a relatively short-stroke steam catapult and a similarly short, undampened arrester gear.
By 2009 the basic airframe had been defined and four prototypes were built for two versions: the Mk. 101 trainer, which was basically a navalized version of the land-based Mk. 132 with almost the same mission equipment, and the Mk. 201, a single-seater. Two airframes of each type were built and the first Samudree Baaj flight took place in early 2011. The Indian government ordered 30 trainers and 15 attack aircraft, to be delivered with the first new Indian carrier, INS Vikrant, in late 2017.
The Samudree Baaj Mk. 201 was developed from the basic navalized Hawk airframe as a light multirole fighter with a small visual signature and high maneuverability, but high combat efficiency and capable of both strike and point defense missions. It differed from the trainer through a completely new forward fuselage whereby the forward cockpit area, which normally housed the trainee, was replaced by an electronics bay for avionics and onboard systems, including a fire control computer, a LINS 300 ring laser gyroscope inertial navigation system and a lightweight (145 kg) multimode, coherent, pulse-Doppler I band airborne radar. This multimode radar was developed from the Ferranti Blue Fox radar and capable of airborne interception and air-to-surface strike roles over water and land, with look-down/shoot-down and look-up modes. It had ten air-to-surface and ten air-to-ground modes for navigation and weapon aiming purposes.
A ventral fairing behind the radome carried a laser rangefinder and a forward-looking infrared (FLIR). Mid-air refueling was also possible, through a detachable (but fixed) probe. GPS navigation or modern night-flight systems were integrated, too.
Like the trainer, the Mk. 201 had a total of seven weapon hardpoints (1 ventral, four underwing and a pair of wing tip launch rails), but the more sophisticated avionics suite allowed a wider range of ordnance to be carried and deployed, which included radar-guided AAMs for BVR strokes and smart weapons and guided missiles – especially the Sea Eagle and AGM-84 “Harpoon” anti-ship missiles in the Indian Navy’s arsenal. For the maritime strike role and as a support for ASW missions, the Samudree Baaj Mk. 201 could even deploy Sting Ray homing torpedoes.
Furthermore, a pair of 30mm (1.18 in) ADEN machine cannon with 150 RPG were housed in a shallow fairing under the cockpit. The self-protection systems include a BAE SkyGuardian 200 RWR and automatic Vinten chaff/flare dispensers located above the engine exhaust.
The Samudree Baaj project was highly ambitious, so that it does not wonder that there were many delays and teething troubles. Beyond the complex avionics integration this included the maritime adaptation of the Adour engine, which eventually led to the uprated Adour Mk. 871-1N, which, as a side benefit, also offered about 10% more power.
However, in parallel, INS Vikrant also ran into delays: In July 2012, The Times of India reported that construction of Vikrant has been delayed by three years, and the ship would be ready for commissioning by 2018. Later, in November 2012, Indian English-language news channel NDTV reported that cost of the aircraft carrier had increased, and the delivery has been delayed by at least five years and is expected to be with the Indian Navy only after 2018 as against the scheduled date of delivery of 2014. Work then commenced for the next stage of construction, which included the installation of the integrated propulsion system, the superstructure, the upper decks, the cabling, sensors and weapons. Vikrant was eventually undocked on 10 June 2015 after the completion of structural work. Cabling, piping, heat and ventilation works were to be completed by 2017; sea trials would begin thereafter. In December 2019, it was reported that the engines on board the ship were switched on and in November 2020, only the basin trials of the aircraft carrier were completed.
By that time, the first Samudree Baaj aircraft had been delivered to Indian Navy 300 squadron, and even though only based at land at Hansa Air Station, flight training and military operations commenced. In the meantime, the start of Vikrant's trials had initially been scheduled to begin on 12 March 2020, but further construction delays caused that to be moved back to April. With the COVID-19 crisis, the navy explained that trials were unlikely to begin before September/October. During the Navy Day press meeting in December 2019, Navy Chief Admiral Karambir Singh said Vikrant would be fully operational before the end of 2022. The COVID-19 pandemic had already pushed that back to 2023 and further delays appeared possible.
In late 2020, the Indian Navy expected to commission Vikrant by the end of 2021. Until then, the Samudree Baaj fleet will remain land-based at INS Hansa near Goa. This not only is the INAS 300 home base, it is also the location of the Indian Navy's Shore Based Test Facility (SBTF), which is a mock-up of the 283-metre (928 ft) INS Vikramaditya (a modified Kiev-class aircraft carrier) deck built to train and certify navy pilots, primarily the the Mikoyan MiG-29K for operating from the aircraft carrier, but now also for the Samudree Baaj and for the developmental trials of the naval HAL Tejas lightweight fighter.
General characteristics:
Crew: 1
Length: 11.38 m (37 ft 4 in)
Wingspan: 9.39 m (30 ft 10 in)
Height: 4.30 m (14 ft 1 in)
Wing area: 17.66 m2 (190.1 sq ft)
Empty weight: 9,394 lb (4,261 kg)
Gross weight: 12,750 lb (5,783 kg)
Max takeoff weight: 9,101 kg (20,064 lb)
Fuel capacity: 1,360 kg (3,000 lb) internal
3,210 kg (7,080 lb) with 3 drop tanks
Powerplant:
1× Rolls-Royce Turbomeca Adour Mk. 871-1N non-afterburning turbofan, 28,89 kN (6,445 lbf) thrust
Performance:
Maximum speed: 1,037 km/h (644 mph, 560 kn) at sea level
Maximum speed: Mach 1.2 (never exceed at altitude)
Cruise speed: 796 km/h (495 mph, 430 kn) at 12,500 m (41,000 ft)
Carrier launch speed: 121 kn (139 mph; 224 km/h)
Approach speed: 125 kn (144 mph; 232 km/h)
Never exceed speed: 575 kn (662 mph, 1,065 km/h) / M1.04 design dive limit
Stall speed: 197 km/h (122 mph, 106 kn) flaps down
Range: 892 km (554 mi, 482 nmi) internal fuel only
Combat range: 617 km (383 mi, 333 nmi) with 2x AGM-84 and 2x 592 l (156 US gal; 130 imp gal)
Ferry range: 1,950 km (1,210 mi, 1,050 nmi) with 3 drop tanks
Service ceiling: 15,250 m (50,030 ft)
G-limits: +8/-3
Rate of climb: 58.466 m/s (11,509.1 ft/min)
Takeoff distance with maximum weapon load: 2,134 m (7,001 ft)
Landing distance at maximum landing weight with brake chute: 854 m (2,802 ft)
Landing distance at maximum landing weight without brake chute: 1,250 m (4,100 ft)
Armament:
2× 30 mm (1.181 in) Aden cannon with 150 rounds each
7× hardpoints (4× under-wing, 1× under-fuselage and 2 × wingtip)
for a total ordnance of 3.085 kg (6,800 lb) and a wide range of weapons
The kit and its assembly:
A subtle kitbashing project, inspired by a CG-rendition of a carrier-based (yet un-navalized) BAe Hawk 200 in Indian Navy service by fellow user SPINNERS in January 2021. I found the idea inspiring but thought that the basic concept could be taken further and into hardware form with a model. And I had a Matchbox Hawk 200 in The Stash™, as well as a McDonnell T-45 trainer from Italeri…
The plan sounds simple: take a T-45 and replace the cockpit section with the single-seat cockpit from the Hawk 200. And while the necessary cuts were easy to make, reality rears its ugly head when you try to mate parts from basically the same aircraft but from models by different manufacturers.
The challenges started with the fact that the fuselage shapes of both models differ – the Matchbox kit is more “voluminous”, and the different canopy shape called for a partial spine transplant, which turned out to be of very different shape than the T-45’s respective section! Lots of PSR…
In order to improve the pretty basic Matchbox Hawk cockpit I integrated the cockpit tub from the Italeri T-45, including the ejection seat, dashboard and its top cover.
For the totally different T-45 front wheel I had to enlarge the respective well and added a “ceiling” to it, since the strut had to be attached somewhere. The Hawk 200’s ventral tub for the cannons (which only the first prototype carried, later production aircraft did not feature them) were retained – partly because of their “whiffy“ nature, but also because making it disappear would have involved more major surgeries.
Most of the are behind the cockpit comes from the Italeri T-45, I just added a RHAWS fairing to the fin, extending it by 3mm.
A major problem became the air intakes, because the two kits differ in their construction. I wanted to use the Italeri parts, because they match the fairings on the fuselage flanks well and are better detailed than the Matchbox parts. But the boundary layer spacers between intakes and fuselage are molded into the Italeri parts, while the Matchbox kit has them molded into the fuselage. This called for major surgery and eventually worked out fine, and more PSR blended the rest of the fuselage donors around the cockpit together. A tedious process, though.
The pylons were puzzled together, including a former Matchbox EA-6B wing pylon under the fuselage, cut down and mounted in reverse and upside down! The ordnance comes from the Italeri NATO weapons set (Matra Magic and AGM-84), the ventral drop tank comes IIRC from an Eduard L-39 Albatros. Matra Magics were chosen because India never operated any Sidewinder AAM, just French or Soviet/Russian missiles like the R-60 or R-73 (unlikely on the Hawk, IMHO), and I had preferred a pair of Sea Eagle ASMs (from a Hasegawa Sea Harrier kit), but their span turned out to be too large for the Hawk’s low wings. The alternative, more slender Harpoons are plausible, though, since they are actually part of the Indian Navy’s inventory.
Painting and markings:
The Indian Navy theme was already settled, and I wanted to stay close to SPINNERS’ illustration as well as to real world Indian Navy aircraft. SPINNERS’ Hawk carried the typical Sea Harreir scheme in Extra Dark Sea Grey and White, and I found this livery to look a bit too much retro, because I’d place this what-if aircraft in the early 2020s, when the Sea Harriers had already been phased out. A “realistic” livery might have been an overall mid-grey paint scheme (like the land-based Indian Hawk 132s), but I found this to look too boring. As a compromise, I gave the Samudree Baaj a simple two-tone paint scheme, carried by a few late Indian Sea Harriers. It consists of upper surfaces in Dark Sea Grey (Humbrol 164) and undersides in Medium Sea Grey (Modelmaster 2058), with a low waterline. The Modelmaster MSG has – for my taste – a rather bluish hue and appears almost like PRU Blue, but I left it that way.
The decals were puzzled together from variosu sources. the roundels come from a MiG-21F (Begemot), the unit markings and tactical codes from a Model Alliance Sea Harrier sheet, and the stencils are a mix from the Matchbox Hawk 200 and the Italeri T-45.
The kit was sealed with matt acrylic varnish from Italeri.
The fictional HAL „Samudree Baaj“ looks simple, but combining kits of the basically same aircraft from different manufacturers reveals their differences, and they are not to be underestimated! However, I like the result of a navalized Hawk single-seater, and - also with the relatively simple and dull livery - it looks pretty convincing.
Many thanks to SPINNERS for the creative inspiration - even though my build is not a 100% "copy" of the artwork, but rather a step further into the navalisation idea with the T-45 parts.
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
The Bell XP-68A owed its existence to the manufacturer’s rather disappointing outcome of its first jet fighter design, the XP-59A Airacomet. The Airacomet was a twin jet-engined fighter aircraft, designed and built during World War II after Major General Henry H. "Hap" Arnold became aware of the United Kingdom's jet program when he attended a demonstration of the Gloster E.28/39 in April 1941. He requested, and was given, the plans for the aircraft's powerplant, the Power Jets W.1, which he took back to the U.S. He also arranged for an example of the engine, the Whittle W.1X turbojet, to be flown to the U.S., along with drawings for the more powerful W.2B/23 engine and a small team of Power Jets engineers. On 4 September 1941, he offered the U.S. company General Electric a contract to produce an American version of the engine, which subsequently became the General Electric I-A. On the following day, he approached Lawrence Dale Bell, head of Bell Aircraft Corporation, to build a fighter to utilize it. As a disinformation tactic, the USAAF gave the project the designation "P-59A", to suggest it was a development of the unrelated, canceled Bell XP-59 fighter project. The P-59A was the first design fighter to have its turbojet engine and air inlet nacelles integrated within the main fuselage. The jet aircraft’s design was finalized on 9 January 1942 and the first prototype flew in October of the same year.
The following 13 service test YP-59As had a more powerful engine than their predecessor, the General Electric J31, but the improvement in performance was negligible, with top speed increased by only 5 mph and a slight reduction in the time they could be used before an overhaul was needed. One of these aircraft, the third YP-59A, was supplied to the Royal Air Force, in exchange for the first production Gloster Meteor I for evaluation and flight-offs with domestic alternatives.
British pilots found that the YP-59A compared very unfavorably with the jets that they were already flying. The United States Army Air Forces were not impressed by its performance either and cancelled the contract when fewer than half of the originally ordered aircraft had been produced. No P-59s entered combat, but the type paved the way for the next design generation of U.S. turbojet-powered aircraft and helped to develop appropriate maintenance structures and procedures.
In the meantime, a new, more powerful jet engine had been developed in Great Britain, the Halford H-1, which became later better known as the De Havilland Goblin. It was another centrifugal compressor design, but it produced almost twice as much thrust as the XP-59A’s J31 engines. Impressed by the British Gloster Meteor during the USAAF tests at Muroc Dry Lake - performance-wise as well as by the aircraft’s simplicity and ruggedness - Bell reacted promptly and proposed an alternative fighter with wing-mounted engine nacelles, since the XP-59A’s layout had proven to be aerodynamically sub-optimal and unsuited for the installation of H-1 engines. In order to save development time and because the aircraft was rather regarded as a proof-of-concept demonstrator instead of a true fighter prototype, the new aircraft was structurally based on Bell’s current piston-engine P-63 “Kingcobra”. The proposal was accepted and, in order to maintain secrecy, the new jet aircraft inherited once more a designation of a recently cancelled project, this time from the Vultee XP-68 “Tornado” fighter. Similar to the Airacomet two years before, just a simple “A” suffix was added.
Bell’s development contract covered only three XP-68A aircraft. The H-1 units were directly imported from Great Britain in secrecy, suspended in the bomb bays of B-24 Liberator bombers. A pair of these engines was mounted in mid-wing nacelles, very similar to the Gloster Meteor’s arrangement. The tailplane was given a 5° dihedral to move it out of the engine exhaust. In order to bear the new engines and their power, the wing main spars were strengthened and the main landing gear wells were moved towards the aircraft’s centerline, effectively narrowing track width. The landing gear wells now occupied the space of the former radiator ducts for the P-63’s omitted Allison V-1710 liquid-cooled V12 engine. Its former compartment behind the cockpit was used for a new fuel tank and test equipment. Having lost the propeller and its long drive shaft, the nose section was also redesigned: the front fuselage became deeper and the additional space there was used for another fuel tank in front of the cockpit and a bigger weapon bay. Different armament arrangements were envisioned, one of each was to be tested on the three prototypes: one machine would be armed with six 0.5” machine guns, another with four 20mm Hispano M2 cannon, and the third with two 37mm M10 cannon and two 0.5” machine guns. Provisions for a ventral hardpoint for a single drop tank or a 1.000 lb (550 kg) bomb were made, but this was never fitted on any of the prototypes. Additional hardpoints under the outer wings for smaller bombs or unguided missiles followed the same fate.
The three XP-68As were built at Bell’s Atlanta plant in the course of early 1944 and semi-officially christened “Airagator”. After their clandestine transfer to Muroc Dry Lake for flight tests and evaluations, the machines were quickly nicknamed “Barrelcobra” by the test staff – not only because of the characteristic shape of the engine nacelles, but also due to the sheer weight of the machines and their resulting sluggish handling on the ground and in the air. “Cadillac” was another nickname, due to the very soft acceleration through the new jet engines and the lack of vibrations that were typical for piston-engine- and propeller-driven aircraft.
Due to the structural reinforcements and modifications, the XP-68A had become a heavy aircraft with an empty weight of 4 tons and a MTOW of almost 8 tons – the same as the big P-47 Thunderbolt piston fighter, while the P-63 had an MTOW of only 10,700 lb (4,900 kg). The result was, among other flaws, a very long take-off distance, especially in the hot desert climate of the Mojave Desert (which precluded any external ordnance) and an inherent unwillingness to change direction, its turning radius was immense. More than once the brakes overheated during landing, so that extra water cooling for the main landing gear was retrofitted.
Once in the air, the aircraft proved to be quite fast – as long as it was flying in a straight line, though. Only the roll characteristics were acceptable, but flying the XP-68A remained hazardous, esp. after the loss of one of the H-1s engines: This resulted in heavily asymmetrical propulsion, making the XP-68A hard to control at all and prone to spin in level flight.
After trials and direct comparison, the XP-68A turned out not to be as fast and, even worse, much less agile than the Meteor Mk III (the RAF’s then current, operational fighter version), which even had weaker Derwent engines. The operational range was insufficient, too, esp. in regard of the planned Pacific theatre of operations, and the high overall weight precluded any considerable external load like drop tanks.
However, compared with the XP-59A, the XP-68A was a considerable step forward, but it had become quickly clear that the XP-68A and its outfit-a-propeller-design-with jet-engines approach did not bear the potential for any service fighter development: it was already outdated when the prototypes were starting their test program. No further XP-68A was ordered or built, and the three prototypes fulfilled their test and evaluation program until May 1945. During these tests, the first prototype was lost on the ground due to an engine fire. After the program’s completion, the two remaining machines were handed over to the US Navy and used for research at the NATC Patuxent River Test Centre, where they were operated until 1949 and finally scrapped.
General characteristics.
Crew: 1
Length: 33 ft 9 in (10.36 m)
Wingspan: 38 ft 4 in (11.7 m)
Height: 13 ft (3.96 m)
Wing area: 248 sq ft (23 m²)
Empty weight: 8,799 lb (3,995 kg)
Loaded weight: 15,138 lb (6,873 kg)
Max. take-off weight: 17,246 lb (7,830 kg)
Powerplant:
2× Halford H-1 (De Havilland Goblin) turbojets, rated at 3,500 lbf (15.6 kN) each
Performance:
Maximum speed: 559 mph (900 km/h)
Range: 500 mi (444 nmi, 805 km)
Service ceiling: 37,565 ft (11,450 m)
Rate of climb: 3.930 ft/min (20 m/s)
Wing loading: 44.9 lb/ft² (218.97 kg/m²)
Thrust/weight: 0.45
Time to altitude: 5.0 min to 30,000 ft (9,145 m)
Armament:
4× Hispano M2 20 mm cannon with 150 rounds
One ventral hardpoint for a single drop tank or a 1.000 lb (550 kg) bomb
6× 60 lb (30 kg) rockets or 2× 500 lb (227 kg) bombs under the outer wings
The kit and its assembly:
This whiffy Kingcobra conversion was spawned by a post by fellow user nighthunter in January 2019 at whatifmodelers.com about a potential jet-powered variant. In found the idea charming, since the XP-59 had turned out to be a dud and the Gloster Meteor had been tested by the USAAF. Why not combine both into a fictional, late WWII Bell prototype?
The basic idea was simple: take a P-63 and add a Meteor’s engine nacelles, while keeping the Kingcobra’s original proportions. This sounds pretty easy but was more challenging than the first look at the outcome might suggest.
The donor kits are a vintage Airfix 1:72 Gloster Meteor Mk.III, since it has the proper, small nacelles, and an Eastern Express P-63 Kingcobra. The latter looked promising, since this kit comes with very good surface and cockpit details (even with a clear dashboard) as well as parts for several P-63 variants, including the A, C and even the exotic “pinball” manned target version. However, anything comes at a price, and the kit’s low price point is compensated by soft plastic (which turned out to be hard to sand), some flash and mediocre fit of any of the major components like fuselage halves, the wings or the clear parts. It feels a lot like a typical short-run kit. Nevertheless, I feel inclined to build another one in a more conventional fashion some day.
Work started with the H-1 nacelles, which had to be cut out from the Meteor wings. Since they come OOB only with a well-visible vertical plate and a main wing spar dummy in the air intake, I added some fine mesh to the plate – normally, you can see directly onto the engine behind the wing spar. Another issue was the fact that the Meteor’s wings are much thicker and deeper than the P-63s, so that lots of PSR work was necessary.
Simply cutting the P-63 OOB wings up and inserting the Meteor nacelles was also not possible: the P-63 has a very wide main landing gear, due to the ventral radiators and oil coolers, which were originally buried in the wing roots and under the piston engine. The only solution: move the complete landing gear (including the wells) inward, so that the nacelles could be placed as close as possible to the fuselage in a mid-span position. Furthermore, the - now useless - radiator openings had to disappear, resulting in a major redesign of the wing root sections. All of this became a major surgery task, followed by similarly messy work on the outer wings during the integration of the Meteor nacelles. LOTS of PSR, even though the outcome looks surprisingly plausible and balanced.
Work on the fuselage started in parallel. It was built mainly OOB, using the optional ventral fin for a P-63C. The exhaust stubs as well as the dorsal carburetor intake had to disappear (the latter made easy thanks to suitable optional parts for the manned target version). Since the P-63 had a conventional low stabilizer arrangement (unlike the Meteor with its cruciform tail), I gave them a slight dihedral to move them out of the engine efflux, a trick Sukhoi engineers did on the Su-11 prototype with afterburner engines in 1947, too.
Furthermore, the whole nose ahead of the cockpit was heavily re-designed, because I wanted the “new” aircraft to lose its propeller heritage and the P-63’s round and rather pointed nose. Somewhat inspired by the P-59 and the P-80, I omitted the propeller parts altogether and re-sculpted the nose with 2C putty, creating a deeper shape with a tall, oval diameter, so that the lower fuselage line was horizontally extended forward. In a profile view the aircraft now looks much more massive and P-80esque. The front landing gear was retained, just its side walls were extended downwards with the help of 0.5mm styrene sheet material, so that the original stance could be kept. Lots of lead in the nose ensured that the model would properly stand on its three wheels.
Once the rhinoplasty was done I drilled four holes into the nose and used hollow steel needles as gun barrels, with a look reminiscent of the Douglas A-20G.
Adding the (perfectly) clear parts of the canopy as a final assembly step also turned out to be a major fight against the elements.
Painting and markings:
With an USAAF WWII prototype in mind, there were only two options: either an NMF machine, or a camouflage in Olive Drab and Neutral Grey. I went for the latter and used Tamiya XF-62 for the upper surfaces and Humbrol 156 (Dark Camouflage Grey) underneath. The kit received a light black ink wash and some post shading in order to emphasize panels. A little dry-brushing with silver around the leading edges and the cockpit was done, too.
The cockpit interior became chromate green (I used Humbrol 150, Forest Green) while the landing gear wells were painted with zinc chromate yellow (Humbrol 81). The landing gear itself was painted in aluminum (Humbrol 56).
Markings/decals became minimal, puzzled together from various sources – only some “Stars and Bars” insignia and the serial number.
Somehow this conversion ended up looking a lot like the contemporary Soviet Sukhoi Su-9 and -11 (Samolyet K and LK) jet fighter prototype – unintentionally, though. But I am happy with the outcome – the P-63 ancestry is there, and the Meteor engines are recognizable, too. But everything blends into each other well, the whole affair looks very balanced and believable. This is IMHO furthermore emphasized by the simple paint scheme. A jet-powered Kingcobra? Why not…?
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
The Bell XP-68A owed its existence to the manufacturer’s rather disappointing outcome of its first jet fighter design, the XP-59A Airacomet. The Airacomet was a twin jet-engined fighter aircraft, designed and built during World War II after Major General Henry H. "Hap" Arnold became aware of the United Kingdom's jet program when he attended a demonstration of the Gloster E.28/39 in April 1941. He requested, and was given, the plans for the aircraft's powerplant, the Power Jets W.1, which he took back to the U.S. He also arranged for an example of the engine, the Whittle W.1X turbojet, to be flown to the U.S., along with drawings for the more powerful W.2B/23 engine and a small team of Power Jets engineers. On 4 September 1941, he offered the U.S. company General Electric a contract to produce an American version of the engine, which subsequently became the General Electric I-A. On the following day, he approached Lawrence Dale Bell, head of Bell Aircraft Corporation, to build a fighter to utilize it. As a disinformation tactic, the USAAF gave the project the designation "P-59A", to suggest it was a development of the unrelated, canceled Bell XP-59 fighter project. The P-59A was the first design fighter to have its turbojet engine and air inlet nacelles integrated within the main fuselage. The jet aircraft’s design was finalized on 9 January 1942 and the first prototype flew in October of the same year.
The following 13 service test YP-59As had a more powerful engine than their predecessor, the General Electric J31, but the improvement in performance was negligible, with top speed increased by only 5 mph and a slight reduction in the time they could be used before an overhaul was needed. One of these aircraft, the third YP-59A, was supplied to the Royal Air Force, in exchange for the first production Gloster Meteor I for evaluation and flight-offs with domestic alternatives.
British pilots found that the YP-59A compared very unfavorably with the jets that they were already flying. The United States Army Air Forces were not impressed by its performance either and cancelled the contract when fewer than half of the originally ordered aircraft had been produced. No P-59s entered combat, but the type paved the way for the next design generation of U.S. turbojet-powered aircraft and helped to develop appropriate maintenance structures and procedures.
In the meantime, a new, more powerful jet engine had been developed in Great Britain, the Halford H-1, which became later better known as the De Havilland Goblin. It was another centrifugal compressor design, but it produced almost twice as much thrust as the XP-59A’s J31 engines. Impressed by the British Gloster Meteor during the USAAF tests at Muroc Dry Lake - performance-wise as well as by the aircraft’s simplicity and ruggedness - Bell reacted promptly and proposed an alternative fighter with wing-mounted engine nacelles, since the XP-59A’s layout had proven to be aerodynamically sub-optimal and unsuited for the installation of H-1 engines. In order to save development time and because the aircraft was rather regarded as a proof-of-concept demonstrator instead of a true fighter prototype, the new aircraft was structurally based on Bell’s current piston-engine P-63 “Kingcobra”. The proposal was accepted and, in order to maintain secrecy, the new jet aircraft inherited once more a designation of a recently cancelled project, this time from the Vultee XP-68 “Tornado” fighter. Similar to the Airacomet two years before, just a simple “A” suffix was added.
Bell’s development contract covered only three XP-68A aircraft. The H-1 units were directly imported from Great Britain in secrecy, suspended in the bomb bays of B-24 Liberator bombers. A pair of these engines was mounted in mid-wing nacelles, very similar to the Gloster Meteor’s arrangement. The tailplane was given a 5° dihedral to move it out of the engine exhaust. In order to bear the new engines and their power, the wing main spars were strengthened and the main landing gear wells were moved towards the aircraft’s centerline, effectively narrowing track width. The landing gear wells now occupied the space of the former radiator ducts for the P-63’s omitted Allison V-1710 liquid-cooled V12 engine. Its former compartment behind the cockpit was used for a new fuel tank and test equipment. Having lost the propeller and its long drive shaft, the nose section was also redesigned: the front fuselage became deeper and the additional space there was used for another fuel tank in front of the cockpit and a bigger weapon bay. Different armament arrangements were envisioned, one of each was to be tested on the three prototypes: one machine would be armed with six 0.5” machine guns, another with four 20mm Hispano M2 cannon, and the third with two 37mm M10 cannon and two 0.5” machine guns. Provisions for a ventral hardpoint for a single drop tank or a 1.000 lb (550 kg) bomb were made, but this was never fitted on any of the prototypes. Additional hardpoints under the outer wings for smaller bombs or unguided missiles followed the same fate.
The three XP-68As were built at Bell’s Atlanta plant in the course of early 1944 and semi-officially christened “Airagator”. After their clandestine transfer to Muroc Dry Lake for flight tests and evaluations, the machines were quickly nicknamed “Barrelcobra” by the test staff – not only because of the characteristic shape of the engine nacelles, but also due to the sheer weight of the machines and their resulting sluggish handling on the ground and in the air. “Cadillac” was another nickname, due to the very soft acceleration through the new jet engines and the lack of vibrations that were typical for piston-engine- and propeller-driven aircraft.
Due to the structural reinforcements and modifications, the XP-68A had become a heavy aircraft with an empty weight of 4 tons and a MTOW of almost 8 tons – the same as the big P-47 Thunderbolt piston fighter, while the P-63 had an MTOW of only 10,700 lb (4,900 kg). The result was, among other flaws, a very long take-off distance, especially in the hot desert climate of the Mojave Desert (which precluded any external ordnance) and an inherent unwillingness to change direction, its turning radius was immense. More than once the brakes overheated during landing, so that extra water cooling for the main landing gear was retrofitted.
Once in the air, the aircraft proved to be quite fast – as long as it was flying in a straight line, though. Only the roll characteristics were acceptable, but flying the XP-68A remained hazardous, esp. after the loss of one of the H-1s engines: This resulted in heavily asymmetrical propulsion, making the XP-68A hard to control at all and prone to spin in level flight.
After trials and direct comparison, the XP-68A turned out not to be as fast and, even worse, much less agile than the Meteor Mk III (the RAF’s then current, operational fighter version), which even had weaker Derwent engines. The operational range was insufficient, too, esp. in regard of the planned Pacific theatre of operations, and the high overall weight precluded any considerable external load like drop tanks.
However, compared with the XP-59A, the XP-68A was a considerable step forward, but it had become quickly clear that the XP-68A and its outfit-a-propeller-design-with jet-engines approach did not bear the potential for any service fighter development: it was already outdated when the prototypes were starting their test program. No further XP-68A was ordered or built, and the three prototypes fulfilled their test and evaluation program until May 1945. During these tests, the first prototype was lost on the ground due to an engine fire. After the program’s completion, the two remaining machines were handed over to the US Navy and used for research at the NATC Patuxent River Test Centre, where they were operated until 1949 and finally scrapped.
General characteristics.
Crew: 1
Length: 33 ft 9 in (10.36 m)
Wingspan: 38 ft 4 in (11.7 m)
Height: 13 ft (3.96 m)
Wing area: 248 sq ft (23 m²)
Empty weight: 8,799 lb (3,995 kg)
Loaded weight: 15,138 lb (6,873 kg)
Max. take-off weight: 17,246 lb (7,830 kg)
Powerplant:
2× Halford H-1 (De Havilland Goblin) turbojets, rated at 3,500 lbf (15.6 kN) each
Performance:
Maximum speed: 559 mph (900 km/h)
Range: 500 mi (444 nmi, 805 km)
Service ceiling: 37,565 ft (11,450 m)
Rate of climb: 3.930 ft/min (20 m/s)
Wing loading: 44.9 lb/ft² (218.97 kg/m²)
Thrust/weight: 0.45
Time to altitude: 5.0 min to 30,000 ft (9,145 m)
Armament:
4× Hispano M2 20 mm cannon with 150 rounds
One ventral hardpoint for a single drop tank or a 1.000 lb (550 kg) bomb
6× 60 lb (30 kg) rockets or 2× 500 lb (227 kg) bombs under the outer wings
The kit and its assembly:
This whiffy Kingcobra conversion was spawned by a post by fellow user nighthunter in January 2019 at whatifmodelers.com about a potential jet-powered variant. In found the idea charming, since the XP-59 had turned out to be a dud and the Gloster Meteor had been tested by the USAAF. Why not combine both into a fictional, late WWII Bell prototype?
The basic idea was simple: take a P-63 and add a Meteor’s engine nacelles, while keeping the Kingcobra’s original proportions. This sounds pretty easy but was more challenging than the first look at the outcome might suggest.
The donor kits are a vintage Airfix 1:72 Gloster Meteor Mk.III, since it has the proper, small nacelles, and an Eastern Express P-63 Kingcobra. The latter looked promising, since this kit comes with very good surface and cockpit details (even with a clear dashboard) as well as parts for several P-63 variants, including the A, C and even the exotic “pinball” manned target version. However, anything comes at a price, and the kit’s low price point is compensated by soft plastic (which turned out to be hard to sand), some flash and mediocre fit of any of the major components like fuselage halves, the wings or the clear parts. It feels a lot like a typical short-run kit. Nevertheless, I feel inclined to build another one in a more conventional fashion some day.
Work started with the H-1 nacelles, which had to be cut out from the Meteor wings. Since they come OOB only with a well-visible vertical plate and a main wing spar dummy in the air intake, I added some fine mesh to the plate – normally, you can see directly onto the engine behind the wing spar. Another issue was the fact that the Meteor’s wings are much thicker and deeper than the P-63s, so that lots of PSR work was necessary.
Simply cutting the P-63 OOB wings up and inserting the Meteor nacelles was also not possible: the P-63 has a very wide main landing gear, due to the ventral radiators and oil coolers, which were originally buried in the wing roots and under the piston engine. The only solution: move the complete landing gear (including the wells) inward, so that the nacelles could be placed as close as possible to the fuselage in a mid-span position. Furthermore, the - now useless - radiator openings had to disappear, resulting in a major redesign of the wing root sections. All of this became a major surgery task, followed by similarly messy work on the outer wings during the integration of the Meteor nacelles. LOTS of PSR, even though the outcome looks surprisingly plausible and balanced.
Work on the fuselage started in parallel. It was built mainly OOB, using the optional ventral fin for a P-63C. The exhaust stubs as well as the dorsal carburetor intake had to disappear (the latter made easy thanks to suitable optional parts for the manned target version). Since the P-63 had a conventional low stabilizer arrangement (unlike the Meteor with its cruciform tail), I gave them a slight dihedral to move them out of the engine efflux, a trick Sukhoi engineers did on the Su-11 prototype with afterburner engines in 1947, too.
Furthermore, the whole nose ahead of the cockpit was heavily re-designed, because I wanted the “new” aircraft to lose its propeller heritage and the P-63’s round and rather pointed nose. Somewhat inspired by the P-59 and the P-80, I omitted the propeller parts altogether and re-sculpted the nose with 2C putty, creating a deeper shape with a tall, oval diameter, so that the lower fuselage line was horizontally extended forward. In a profile view the aircraft now looks much more massive and P-80esque. The front landing gear was retained, just its side walls were extended downwards with the help of 0.5mm styrene sheet material, so that the original stance could be kept. Lots of lead in the nose ensured that the model would properly stand on its three wheels.
Once the rhinoplasty was done I drilled four holes into the nose and used hollow steel needles as gun barrels, with a look reminiscent of the Douglas A-20G.
Adding the (perfectly) clear parts of the canopy as a final assembly step also turned out to be a major fight against the elements.
Painting and markings:
With an USAAF WWII prototype in mind, there were only two options: either an NMF machine, or a camouflage in Olive Drab and Neutral Grey. I went for the latter and used Tamiya XF-62 for the upper surfaces and Humbrol 156 (Dark Camouflage Grey) underneath. The kit received a light black ink wash and some post shading in order to emphasize panels. A little dry-brushing with silver around the leading edges and the cockpit was done, too.
The cockpit interior became chromate green (I used Humbrol 150, Forest Green) while the landing gear wells were painted with zinc chromate yellow (Humbrol 81). The landing gear itself was painted in aluminum (Humbrol 56).
Markings/decals became minimal, puzzled together from various sources – only some “Stars and Bars” insignia and the serial number.
Somehow this conversion ended up looking a lot like the contemporary Soviet Sukhoi Su-9 and -11 (Samolyet K and LK) jet fighter prototype – unintentionally, though. But I am happy with the outcome – the P-63 ancestry is there, and the Meteor engines are recognizable, too. But everything blends into each other well, the whole affair looks very balanced and believable. This is IMHO furthermore emphasized by the simple paint scheme. A jet-powered Kingcobra? Why not…?
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based on historical facts. BEWARE!
Some background:
The Indian „Samudree Baaj“ (समुद्री बाज, Sea Hawk) was a highly modified, navalized version of the British BAE Systems Hawk land-based training jet aircraft, which had been manufactured under license by Hindustan Aeronautics Limited (HAL). The first indigenously built Hawk Mk. 132 trainer was delivered in 2008 to the Indian Air Force, and the type has since then been updated with indigenous avionics into the “Hawk-I” Mk. 132 from 2020 onwards. The aircraft’s Rolls Royce Adour Mk 871 engine was also license-built by HAL, and the company had experience from a wide range of aircraft projects in the past.
The Samudree Baaj project was initiated in 2006 by the Indian Navy, as part of the long historic plan to provide the Indian Navy with a fully capable aircraft carrier. This plan had been initiated in 1989, when India announced a plan to replace its ageing British-built aircraft carriers, INS Vikrant and INS Viraat (ex-HMS Hermes), with two new 28,000-ton Air Defence Ships (ADS) that would operate the BAe Sea Harrier aircraft. The first vessel was to replace Vikrant, which was set to decommission in early 1997. Construction of the ADS was to start at the Cochin Shipyard (CSL) in 1993 after the Indian Naval Design Organisation had translated this design study into a production model. Following the 1991 economic crisis, the plans for construction of the vessels were put on hold indefinitely.
In 1999, then-Defence Minister George Fernandes revived the project and sanctioned the construction of the Project “71 ADS”. By that time, given the ageing Sea Harrier fleet, the letter of intent called for a carrier that would carry more modern jet fighters. In 2001, CSL released a graphic illustration showing a 32,000-ton STOBAR (Short Take-Off But Arrested Recovery) design with a pronounced ski jump. The aircraft carrier project finally received formal government approval in January 2003. By then, design updates called for a 37,500-ton carrier to operate the MiG-29K. India opted for a three-carrier fleet consisting of one carrier battle group stationed on each seaboard, and a third carrier held in reserve, in order to continuously protect both its flanks, to protect economic interests and mercantile traffic, and to provide humanitarian platforms in times of disasters, since a carrier can provide a self-generating supply of fresh water, medical assistance or engineering expertise to populations in need for assistance.
In August 2006, then-Chief of the Naval Staff, Admiral Arun Prakash stated that the designation for the vessel had been changed from Air Defence Ship (ADS) to Indigenous Aircraft Carrier (IAC). The euphemistic ADS had been adopted in planning stages to ward off concerns about a naval build-up. Final revisions to the design increased the displacement of the carrier from 37,500 tons to over 40,000 tons. The length of the ship also increased from 252 metres (827 ft) to 262 metres (860 ft).
It was at this time that, beyond the MiG-29K, primarily a carrier-capable trainer and also a light (and less costly) strike aircraft would be needed. With the running production of the Hawk Mk. 132 for the Indian Air Force and BAE Systems’ connection and experience to the USA and McDonnell/Boeing’s adaptation of the Hawk as the US Navy’s carrier-capable T-45 trainer, HAL was instructed to develop a suitable aircraft family on the Hawk’s basis for the new carriers.
HAL’s Samudree Baaj is a fully carrier-capable version of the British Aerospace Hawk Mk. The Hawk had not originally been designed to perform carrier operations, so that numerous modifications were required, such as the extensive strengthening of the airframe to withstand the excessive forces imposed by the stresses involved in catapult launches and high sink-rate landings, both scenarios being routine in aircraft carrier operations.
The aerodynamic changes of the aircraft, which were mutually developed by HAL and BAE Systems, included improvements to the low-speed handling characteristics and a reduction in the approach speed. Most notable amongst the changes made to the Hawk's design were extended flaps for better low-speed handling, along with the addition of spoilers on the wings to reduce lift and strakes on the fuselage which improved airflow and stabilizer efficiency.
Other, less obvious modifications included a reinforced airframe, the adoption of a more robust and widened landing gear, complete with a catapult tow bar attachment to the oleo strut of the new two-wheel nose gear design, and an arresting hook. The tail fin was extended by 1 foot (12 in, 30.5 cm) to compensate for the loss of the Hawk’s ventral stabilizing strakes. To make room for the arrester hook, the original ventral air brake was split and re-located to the flanks, similar to the USN’s T-45 trainer.
At the time of the Samudree Baaj’s design, the exact catapult arrangement and capacity on board of India’s new carriers was not clear yet – even more so, since the MiG-29K and its powerful engines might have made a catapult obsolete. Therefore, the Samudree Baaj was designed to be operable either with a ski jump ramp (in the style of the Russian Kiev class carriers, of which India had purchased one as INS Vikramaditya) or with only minimal launch support within the projected STOBAR concept, which included a relatively short-stroke steam catapult and a similarly short, undampened arrester gear.
By 2009 the basic airframe had been defined and four prototypes were built for two versions: the Mk. 101 trainer, which was basically a navalized version of the land-based Mk. 132 with almost the same mission equipment, and the Mk. 201, a single-seater. Two airframes of each type were built and the first Samudree Baaj flight took place in early 2011. The Indian government ordered 30 trainers and 15 attack aircraft, to be delivered with the first new Indian carrier, INS Vikrant, in late 2017.
The Samudree Baaj Mk. 201 was developed from the basic navalized Hawk airframe as a light multirole fighter with a small visual signature and high maneuverability, but high combat efficiency and capable of both strike and point defense missions. It differed from the trainer through a completely new forward fuselage whereby the forward cockpit area, which normally housed the trainee, was replaced by an electronics bay for avionics and onboard systems, including a fire control computer, a LINS 300 ring laser gyroscope inertial navigation system and a lightweight (145 kg) multimode, coherent, pulse-Doppler I band airborne radar. This multimode radar was developed from the Ferranti Blue Fox radar and capable of airborne interception and air-to-surface strike roles over water and land, with look-down/shoot-down and look-up modes. It had ten air-to-surface and ten air-to-ground modes for navigation and weapon aiming purposes.
A ventral fairing behind the radome carried a laser rangefinder and a forward-looking infrared (FLIR). Mid-air refueling was also possible, through a detachable (but fixed) probe. GPS navigation or modern night-flight systems were integrated, too.
Like the trainer, the Mk. 201 had a total of seven weapon hardpoints (1 ventral, four underwing and a pair of wing tip launch rails), but the more sophisticated avionics suite allowed a wider range of ordnance to be carried and deployed, which included radar-guided AAMs for BVR strokes and smart weapons and guided missiles – especially the Sea Eagle and AGM-84 “Harpoon” anti-ship missiles in the Indian Navy’s arsenal. For the maritime strike role and as a support for ASW missions, the Samudree Baaj Mk. 201 could even deploy Sting Ray homing torpedoes.
Furthermore, a pair of 30mm (1.18 in) ADEN machine cannon with 150 RPG were housed in a shallow fairing under the cockpit. The self-protection systems include a BAE SkyGuardian 200 RWR and automatic Vinten chaff/flare dispensers located above the engine exhaust.
The Samudree Baaj project was highly ambitious, so that it does not wonder that there were many delays and teething troubles. Beyond the complex avionics integration this included the maritime adaptation of the Adour engine, which eventually led to the uprated Adour Mk. 871-1N, which, as a side benefit, also offered about 10% more power.
However, in parallel, INS Vikrant also ran into delays: In July 2012, The Times of India reported that construction of Vikrant has been delayed by three years, and the ship would be ready for commissioning by 2018. Later, in November 2012, Indian English-language news channel NDTV reported that cost of the aircraft carrier had increased, and the delivery has been delayed by at least five years and is expected to be with the Indian Navy only after 2018 as against the scheduled date of delivery of 2014. Work then commenced for the next stage of construction, which included the installation of the integrated propulsion system, the superstructure, the upper decks, the cabling, sensors and weapons. Vikrant was eventually undocked on 10 June 2015 after the completion of structural work. Cabling, piping, heat and ventilation works were to be completed by 2017; sea trials would begin thereafter. In December 2019, it was reported that the engines on board the ship were switched on and in November 2020, only the basin trials of the aircraft carrier were completed.
By that time, the first Samudree Baaj aircraft had been delivered to Indian Navy 300 squadron, and even though only based at land at Hansa Air Station, flight training and military operations commenced. In the meantime, the start of Vikrant's trials had initially been scheduled to begin on 12 March 2020, but further construction delays caused that to be moved back to April. With the COVID-19 crisis, the navy explained that trials were unlikely to begin before September/October. During the Navy Day press meeting in December 2019, Navy Chief Admiral Karambir Singh said Vikrant would be fully operational before the end of 2022. The COVID-19 pandemic had already pushed that back to 2023 and further delays appeared possible.
In late 2020, the Indian Navy expected to commission Vikrant by the end of 2021. Until then, the Samudree Baaj fleet will remain land-based at INS Hansa near Goa. This not only is the INAS 300 home base, it is also the location of the Indian Navy's Shore Based Test Facility (SBTF), which is a mock-up of the 283-metre (928 ft) INS Vikramaditya (a modified Kiev-class aircraft carrier) deck built to train and certify navy pilots, primarily the the Mikoyan MiG-29K for operating from the aircraft carrier, but now also for the Samudree Baaj and for the developmental trials of the naval HAL Tejas lightweight fighter.
General characteristics:
Crew: 1
Length: 11.38 m (37 ft 4 in)
Wingspan: 9.39 m (30 ft 10 in)
Height: 4.30 m (14 ft 1 in)
Wing area: 17.66 m2 (190.1 sq ft)
Empty weight: 9,394 lb (4,261 kg)
Gross weight: 12,750 lb (5,783 kg)
Max takeoff weight: 9,101 kg (20,064 lb)
Fuel capacity: 1,360 kg (3,000 lb) internal
3,210 kg (7,080 lb) with 3 drop tanks
Powerplant:
1× Rolls-Royce Turbomeca Adour Mk. 871-1N non-afterburning turbofan, 28,89 kN (6,445 lbf) thrust
Performance:
Maximum speed: 1,037 km/h (644 mph, 560 kn) at sea level
Maximum speed: Mach 1.2 (never exceed at altitude)
Cruise speed: 796 km/h (495 mph, 430 kn) at 12,500 m (41,000 ft)
Carrier launch speed: 121 kn (139 mph; 224 km/h)
Approach speed: 125 kn (144 mph; 232 km/h)
Never exceed speed: 575 kn (662 mph, 1,065 km/h) / M1.04 design dive limit
Stall speed: 197 km/h (122 mph, 106 kn) flaps down
Range: 892 km (554 mi, 482 nmi) internal fuel only
Combat range: 617 km (383 mi, 333 nmi) with 2x AGM-84 and 2x 592 l (156 US gal; 130 imp gal)
Ferry range: 1,950 km (1,210 mi, 1,050 nmi) with 3 drop tanks
Service ceiling: 15,250 m (50,030 ft)
G-limits: +8/-3
Rate of climb: 58.466 m/s (11,509.1 ft/min)
Takeoff distance with maximum weapon load: 2,134 m (7,001 ft)
Landing distance at maximum landing weight with brake chute: 854 m (2,802 ft)
Landing distance at maximum landing weight without brake chute: 1,250 m (4,100 ft)
Armament:
2× 30 mm (1.181 in) Aden cannon with 150 rounds each
7× hardpoints (4× under-wing, 1× under-fuselage and 2 × wingtip)
for a total ordnance of 3.085 kg (6,800 lb) and a wide range of weapons
The kit and its assembly:
A subtle kitbashing project, inspired by a CG-rendition of a carrier-based (yet un-navalized) BAe Hawk 200 in Indian Navy service by fellow user SPINNERS in January 2021. I found the idea inspiring but thought that the basic concept could be taken further and into hardware form with a model. And I had a Matchbox Hawk 200 in The Stash™, as well as a McDonnell T-45 trainer from Italeri…
The plan sounds simple: take a T-45 and replace the cockpit section with the single-seat cockpit from the Hawk 200. And while the necessary cuts were easy to make, reality rears its ugly head when you try to mate parts from basically the same aircraft but from models by different manufacturers.
The challenges started with the fact that the fuselage shapes of both models differ – the Matchbox kit is more “voluminous”, and the different canopy shape called for a partial spine transplant, which turned out to be of very different shape than the T-45’s respective section! Lots of PSR…
In order to improve the pretty basic Matchbox Hawk cockpit I integrated the cockpit tub from the Italeri T-45, including the ejection seat, dashboard and its top cover.
For the totally different T-45 front wheel I had to enlarge the respective well and added a “ceiling” to it, since the strut had to be attached somewhere. The Hawk 200’s ventral tub for the cannons (which only the first prototype carried, later production aircraft did not feature them) were retained – partly because of their “whiffy“ nature, but also because making it disappear would have involved more major surgeries.
Most of the are behind the cockpit comes from the Italeri T-45, I just added a RHAWS fairing to the fin, extending it by 3mm.
A major problem became the air intakes, because the two kits differ in their construction. I wanted to use the Italeri parts, because they match the fairings on the fuselage flanks well and are better detailed than the Matchbox parts. But the boundary layer spacers between intakes and fuselage are molded into the Italeri parts, while the Matchbox kit has them molded into the fuselage. This called for major surgery and eventually worked out fine, and more PSR blended the rest of the fuselage donors around the cockpit together. A tedious process, though.
The pylons were puzzled together, including a former Matchbox EA-6B wing pylon under the fuselage, cut down and mounted in reverse and upside down! The ordnance comes from the Italeri NATO weapons set (Matra Magic and AGM-84), the ventral drop tank comes IIRC from an Eduard L-39 Albatros. Matra Magics were chosen because India never operated any Sidewinder AAM, just French or Soviet/Russian missiles like the R-60 or R-73 (unlikely on the Hawk, IMHO), and I had preferred a pair of Sea Eagle ASMs (from a Hasegawa Sea Harrier kit), but their span turned out to be too large for the Hawk’s low wings. The alternative, more slender Harpoons are plausible, though, since they are actually part of the Indian Navy’s inventory.
Painting and markings:
The Indian Navy theme was already settled, and I wanted to stay close to SPINNERS’ illustration as well as to real world Indian Navy aircraft. SPINNERS’ Hawk carried the typical Sea Harreir scheme in Extra Dark Sea Grey and White, and I found this livery to look a bit too much retro, because I’d place this what-if aircraft in the early 2020s, when the Sea Harriers had already been phased out. A “realistic” livery might have been an overall mid-grey paint scheme (like the land-based Indian Hawk 132s), but I found this to look too boring. As a compromise, I gave the Samudree Baaj a simple two-tone paint scheme, carried by a few late Indian Sea Harriers. It consists of upper surfaces in Dark Sea Grey (Humbrol 164) and undersides in Medium Sea Grey (Modelmaster 2058), with a low waterline. The Modelmaster MSG has – for my taste – a rather bluish hue and appears almost like PRU Blue, but I left it that way.
The decals were puzzled together from variosu sources. the roundels come from a MiG-21F (Begemot), the unit markings and tactical codes from a Model Alliance Sea Harrier sheet, and the stencils are a mix from the Matchbox Hawk 200 and the Italeri T-45.
The kit was sealed with matt acrylic varnish from Italeri.
The fictional HAL „Samudree Baaj“ looks simple, but combining kits of the basically same aircraft from different manufacturers reveals their differences, and they are not to be underestimated! However, I like the result of a navalized Hawk single-seater, and - also with the relatively simple and dull livery - it looks pretty convincing.
Many thanks to SPINNERS for the creative inspiration - even though my build is not a 100% "copy" of the artwork, but rather a step further into the navalisation idea with the T-45 parts.
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based on historical facts. BEWARE!
Some background:
The Indian „Samudree Baaj“ (समुद्री बाज, Sea Hawk) was a highly modified, navalized version of the British BAE Systems Hawk land-based training jet aircraft, which had been manufactured under license by Hindustan Aeronautics Limited (HAL). The first indigenously built Hawk Mk. 132 trainer was delivered in 2008 to the Indian Air Force, and the type has since then been updated with indigenous avionics into the “Hawk-I” Mk. 132 from 2020 onwards. The aircraft’s Rolls Royce Adour Mk 871 engine was also license-built by HAL, and the company had experience from a wide range of aircraft projects in the past.
The Samudree Baaj project was initiated in 2006 by the Indian Navy, as part of the long historic plan to provide the Indian Navy with a fully capable aircraft carrier. This plan had been initiated in 1989, when India announced a plan to replace its ageing British-built aircraft carriers, INS Vikrant and INS Viraat (ex-HMS Hermes), with two new 28,000-ton Air Defence Ships (ADS) that would operate the BAe Sea Harrier aircraft. The first vessel was to replace Vikrant, which was set to decommission in early 1997. Construction of the ADS was to start at the Cochin Shipyard (CSL) in 1993 after the Indian Naval Design Organisation had translated this design study into a production model. Following the 1991 economic crisis, the plans for construction of the vessels were put on hold indefinitely.
In 1999, then-Defence Minister George Fernandes revived the project and sanctioned the construction of the Project “71 ADS”. By that time, given the ageing Sea Harrier fleet, the letter of intent called for a carrier that would carry more modern jet fighters. In 2001, CSL released a graphic illustration showing a 32,000-ton STOBAR (Short Take-Off But Arrested Recovery) design with a pronounced ski jump. The aircraft carrier project finally received formal government approval in January 2003. By then, design updates called for a 37,500-ton carrier to operate the MiG-29K. India opted for a three-carrier fleet consisting of one carrier battle group stationed on each seaboard, and a third carrier held in reserve, in order to continuously protect both its flanks, to protect economic interests and mercantile traffic, and to provide humanitarian platforms in times of disasters, since a carrier can provide a self-generating supply of fresh water, medical assistance or engineering expertise to populations in need for assistance.
In August 2006, then-Chief of the Naval Staff, Admiral Arun Prakash stated that the designation for the vessel had been changed from Air Defence Ship (ADS) to Indigenous Aircraft Carrier (IAC). The euphemistic ADS had been adopted in planning stages to ward off concerns about a naval build-up. Final revisions to the design increased the displacement of the carrier from 37,500 tons to over 40,000 tons. The length of the ship also increased from 252 metres (827 ft) to 262 metres (860 ft).
It was at this time that, beyond the MiG-29K, primarily a carrier-capable trainer and also a light (and less costly) strike aircraft would be needed. With the running production of the Hawk Mk. 132 for the Indian Air Force and BAE Systems’ connection and experience to the USA and McDonnell/Boeing’s adaptation of the Hawk as the US Navy’s carrier-capable T-45 trainer, HAL was instructed to develop a suitable aircraft family on the Hawk’s basis for the new carriers.
HAL’s Samudree Baaj is a fully carrier-capable version of the British Aerospace Hawk Mk. The Hawk had not originally been designed to perform carrier operations, so that numerous modifications were required, such as the extensive strengthening of the airframe to withstand the excessive forces imposed by the stresses involved in catapult launches and high sink-rate landings, both scenarios being routine in aircraft carrier operations.
The aerodynamic changes of the aircraft, which were mutually developed by HAL and BAE Systems, included improvements to the low-speed handling characteristics and a reduction in the approach speed. Most notable amongst the changes made to the Hawk's design were extended flaps for better low-speed handling, along with the addition of spoilers on the wings to reduce lift and strakes on the fuselage which improved airflow and stabilizer efficiency.
Other, less obvious modifications included a reinforced airframe, the adoption of a more robust and widened landing gear, complete with a catapult tow bar attachment to the oleo strut of the new two-wheel nose gear design, and an arresting hook. The tail fin was extended by 1 foot (12 in, 30.5 cm) to compensate for the loss of the Hawk’s ventral stabilizing strakes. To make room for the arrester hook, the original ventral air brake was split and re-located to the flanks, similar to the USN’s T-45 trainer.
At the time of the Samudree Baaj’s design, the exact catapult arrangement and capacity on board of India’s new carriers was not clear yet – even more so, since the MiG-29K and its powerful engines might have made a catapult obsolete. Therefore, the Samudree Baaj was designed to be operable either with a ski jump ramp (in the style of the Russian Kiev class carriers, of which India had purchased one as INS Vikramaditya) or with only minimal launch support within the projected STOBAR concept, which included a relatively short-stroke steam catapult and a similarly short, undampened arrester gear.
By 2009 the basic airframe had been defined and four prototypes were built for two versions: the Mk. 101 trainer, which was basically a navalized version of the land-based Mk. 132 with almost the same mission equipment, and the Mk. 201, a single-seater. Two airframes of each type were built and the first Samudree Baaj flight took place in early 2011. The Indian government ordered 30 trainers and 15 attack aircraft, to be delivered with the first new Indian carrier, INS Vikrant, in late 2017.
The Samudree Baaj Mk. 201 was developed from the basic navalized Hawk airframe as a light multirole fighter with a small visual signature and high maneuverability, but high combat efficiency and capable of both strike and point defense missions. It differed from the trainer through a completely new forward fuselage whereby the forward cockpit area, which normally housed the trainee, was replaced by an electronics bay for avionics and onboard systems, including a fire control computer, a LINS 300 ring laser gyroscope inertial navigation system and a lightweight (145 kg) multimode, coherent, pulse-Doppler I band airborne radar. This multimode radar was developed from the Ferranti Blue Fox radar and capable of airborne interception and air-to-surface strike roles over water and land, with look-down/shoot-down and look-up modes. It had ten air-to-surface and ten air-to-ground modes for navigation and weapon aiming purposes.
A ventral fairing behind the radome carried a laser rangefinder and a forward-looking infrared (FLIR). Mid-air refueling was also possible, through a detachable (but fixed) probe. GPS navigation or modern night-flight systems were integrated, too.
Like the trainer, the Mk. 201 had a total of seven weapon hardpoints (1 ventral, four underwing and a pair of wing tip launch rails), but the more sophisticated avionics suite allowed a wider range of ordnance to be carried and deployed, which included radar-guided AAMs for BVR strokes and smart weapons and guided missiles – especially the Sea Eagle and AGM-84 “Harpoon” anti-ship missiles in the Indian Navy’s arsenal. For the maritime strike role and as a support for ASW missions, the Samudree Baaj Mk. 201 could even deploy Sting Ray homing torpedoes.
Furthermore, a pair of 30mm (1.18 in) ADEN machine cannon with 150 RPG were housed in a shallow fairing under the cockpit. The self-protection systems include a BAE SkyGuardian 200 RWR and automatic Vinten chaff/flare dispensers located above the engine exhaust.
The Samudree Baaj project was highly ambitious, so that it does not wonder that there were many delays and teething troubles. Beyond the complex avionics integration this included the maritime adaptation of the Adour engine, which eventually led to the uprated Adour Mk. 871-1N, which, as a side benefit, also offered about 10% more power.
However, in parallel, INS Vikrant also ran into delays: In July 2012, The Times of India reported that construction of Vikrant has been delayed by three years, and the ship would be ready for commissioning by 2018. Later, in November 2012, Indian English-language news channel NDTV reported that cost of the aircraft carrier had increased, and the delivery has been delayed by at least five years and is expected to be with the Indian Navy only after 2018 as against the scheduled date of delivery of 2014. Work then commenced for the next stage of construction, which included the installation of the integrated propulsion system, the superstructure, the upper decks, the cabling, sensors and weapons. Vikrant was eventually undocked on 10 June 2015 after the completion of structural work. Cabling, piping, heat and ventilation works were to be completed by 2017; sea trials would begin thereafter. In December 2019, it was reported that the engines on board the ship were switched on and in November 2020, only the basin trials of the aircraft carrier were completed.
By that time, the first Samudree Baaj aircraft had been delivered to Indian Navy 300 squadron, and even though only based at land at Hansa Air Station, flight training and military operations commenced. In the meantime, the start of Vikrant's trials had initially been scheduled to begin on 12 March 2020, but further construction delays caused that to be moved back to April. With the COVID-19 crisis, the navy explained that trials were unlikely to begin before September/October. During the Navy Day press meeting in December 2019, Navy Chief Admiral Karambir Singh said Vikrant would be fully operational before the end of 2022. The COVID-19 pandemic had already pushed that back to 2023 and further delays appeared possible.
In late 2020, the Indian Navy expected to commission Vikrant by the end of 2021. Until then, the Samudree Baaj fleet will remain land-based at INS Hansa near Goa. This not only is the INAS 300 home base, it is also the location of the Indian Navy's Shore Based Test Facility (SBTF), which is a mock-up of the 283-metre (928 ft) INS Vikramaditya (a modified Kiev-class aircraft carrier) deck built to train and certify navy pilots, primarily the the Mikoyan MiG-29K for operating from the aircraft carrier, but now also for the Samudree Baaj and for the developmental trials of the naval HAL Tejas lightweight fighter.
General characteristics:
Crew: 1
Length: 11.38 m (37 ft 4 in)
Wingspan: 9.39 m (30 ft 10 in)
Height: 4.30 m (14 ft 1 in)
Wing area: 17.66 m2 (190.1 sq ft)
Empty weight: 9,394 lb (4,261 kg)
Gross weight: 12,750 lb (5,783 kg)
Max takeoff weight: 9,101 kg (20,064 lb)
Fuel capacity: 1,360 kg (3,000 lb) internal
3,210 kg (7,080 lb) with 3 drop tanks
Powerplant:
1× Rolls-Royce Turbomeca Adour Mk. 871-1N non-afterburning turbofan, 28,89 kN (6,445 lbf) thrust
Performance:
Maximum speed: 1,037 km/h (644 mph, 560 kn) at sea level
Maximum speed: Mach 1.2 (never exceed at altitude)
Cruise speed: 796 km/h (495 mph, 430 kn) at 12,500 m (41,000 ft)
Carrier launch speed: 121 kn (139 mph; 224 km/h)
Approach speed: 125 kn (144 mph; 232 km/h)
Never exceed speed: 575 kn (662 mph, 1,065 km/h) / M1.04 design dive limit
Stall speed: 197 km/h (122 mph, 106 kn) flaps down
Range: 892 km (554 mi, 482 nmi) internal fuel only
Combat range: 617 km (383 mi, 333 nmi) with 2x AGM-84 and 2x 592 l (156 US gal; 130 imp gal)
Ferry range: 1,950 km (1,210 mi, 1,050 nmi) with 3 drop tanks
Service ceiling: 15,250 m (50,030 ft)
G-limits: +8/-3
Rate of climb: 58.466 m/s (11,509.1 ft/min)
Takeoff distance with maximum weapon load: 2,134 m (7,001 ft)
Landing distance at maximum landing weight with brake chute: 854 m (2,802 ft)
Landing distance at maximum landing weight without brake chute: 1,250 m (4,100 ft)
Armament:
2× 30 mm (1.181 in) Aden cannon with 150 rounds each
7× hardpoints (4× under-wing, 1× under-fuselage and 2 × wingtip)
for a total ordnance of 3.085 kg (6,800 lb) and a wide range of weapons
The kit and its assembly:
A subtle kitbashing project, inspired by a CG-rendition of a carrier-based (yet un-navalized) BAe Hawk 200 in Indian Navy service by fellow user SPINNERS in January 2021. I found the idea inspiring but thought that the basic concept could be taken further and into hardware form with a model. And I had a Matchbox Hawk 200 in The Stash™, as well as a McDonnell T-45 trainer from Italeri…
The plan sounds simple: take a T-45 and replace the cockpit section with the single-seat cockpit from the Hawk 200. And while the necessary cuts were easy to make, reality rears its ugly head when you try to mate parts from basically the same aircraft but from models by different manufacturers.
The challenges started with the fact that the fuselage shapes of both models differ – the Matchbox kit is more “voluminous”, and the different canopy shape called for a partial spine transplant, which turned out to be of very different shape than the T-45’s respective section! Lots of PSR…
In order to improve the pretty basic Matchbox Hawk cockpit I integrated the cockpit tub from the Italeri T-45, including the ejection seat, dashboard and its top cover.
For the totally different T-45 front wheel I had to enlarge the respective well and added a “ceiling” to it, since the strut had to be attached somewhere. The Hawk 200’s ventral tub for the cannons (which only the first prototype carried, later production aircraft did not feature them) were retained – partly because of their “whiffy“ nature, but also because making it disappear would have involved more major surgeries.
Most of the are behind the cockpit comes from the Italeri T-45, I just added a RHAWS fairing to the fin, extending it by 3mm.
A major problem became the air intakes, because the two kits differ in their construction. I wanted to use the Italeri parts, because they match the fairings on the fuselage flanks well and are better detailed than the Matchbox parts. But the boundary layer spacers between intakes and fuselage are molded into the Italeri parts, while the Matchbox kit has them molded into the fuselage. This called for major surgery and eventually worked out fine, and more PSR blended the rest of the fuselage donors around the cockpit together. A tedious process, though.
The pylons were puzzled together, including a former Matchbox EA-6B wing pylon under the fuselage, cut down and mounted in reverse and upside down! The ordnance comes from the Italeri NATO weapons set (Matra Magic and AGM-84), the ventral drop tank comes IIRC from an Eduard L-39 Albatros. Matra Magics were chosen because India never operated any Sidewinder AAM, just French or Soviet/Russian missiles like the R-60 or R-73 (unlikely on the Hawk, IMHO), and I had preferred a pair of Sea Eagle ASMs (from a Hasegawa Sea Harrier kit), but their span turned out to be too large for the Hawk’s low wings. The alternative, more slender Harpoons are plausible, though, since they are actually part of the Indian Navy’s inventory.
Painting and markings:
The Indian Navy theme was already settled, and I wanted to stay close to SPINNERS’ illustration as well as to real world Indian Navy aircraft. SPINNERS’ Hawk carried the typical Sea Harreir scheme in Extra Dark Sea Grey and White, and I found this livery to look a bit too much retro, because I’d place this what-if aircraft in the early 2020s, when the Sea Harriers had already been phased out. A “realistic” livery might have been an overall mid-grey paint scheme (like the land-based Indian Hawk 132s), but I found this to look too boring. As a compromise, I gave the Samudree Baaj a simple two-tone paint scheme, carried by a few late Indian Sea Harriers. It consists of upper surfaces in Dark Sea Grey (Humbrol 164) and undersides in Medium Sea Grey (Modelmaster 2058), with a low waterline. The Modelmaster MSG has – for my taste – a rather bluish hue and appears almost like PRU Blue, but I left it that way.
The decals were puzzled together from variosu sources. the roundels come from a MiG-21F (Begemot), the unit markings and tactical codes from a Model Alliance Sea Harrier sheet, and the stencils are a mix from the Matchbox Hawk 200 and the Italeri T-45.
The kit was sealed with matt acrylic varnish from Italeri.
The fictional HAL „Samudree Baaj“ looks simple, but combining kits of the basically same aircraft from different manufacturers reveals their differences, and they are not to be underestimated! However, I like the result of a navalized Hawk single-seater, and - also with the relatively simple and dull livery - it looks pretty convincing.
Many thanks to SPINNERS for the creative inspiration - even though my build is not a 100% "copy" of the artwork, but rather a step further into the navalisation idea with the T-45 parts.
DISCLAIMER
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
The Northrop Grumman-IAI F-24 is the latest reincarnation of the USAF "Lightweight Fighter Program" which dates back to the 1950ies and started with the development of Northrop's F-5 "Freedom Fighter".
The 1st generation F-5 became very successful in the export market and saw a long line of development, including the much more powerful F-5E "Tiger II" and the F-20 Tigershark (initially called F-5G). Northrop had high hopes for the F-20 in the international market; however, policy changes following Ronald Reagan's election meant the F-20 had to compete for sales against aircraft like the F-16, the USAF's latest fighter design (which was politically favored). The F-20 development program was eventually abandoned in 1986 after three prototypes had been built and a fourth partially completed.
But this was not the end for Northrop’s Lightweight Fighter. In the early 1980s, two X-29As experimental aircraft were built by Grumman from two existing Northrop F-5A Freedom Fighter airframes. The Grumman X-29 was a testbed for forward-swept wings, canard control surfaces, and other novel aircraft technologies. The aerodynamic instability of this arrangement increased agility but required the use of computerized fly-by-wire control. Composite materials were used to control the aeroelastic divergent twisting experienced by forward-swept wings, also reducing the weight. The NASA test program continued from 1984 to 1991 and the X-29s flew 242 times, gathering valuable data and breaking ground for new aerodynamic technologies of 4th and 5th generation fighters.
Even though no service aircraft directly evolved from the X-29, its innovative FBW system as well as the new material technologies also opened the door for an updated F-20 far beyond the 1990ies. It became clear that ever expensive and complex aircraft could not be the answer to modern, asymmetrical warfare in remote corners of the world, with exploding development costs and just a limited number of aircraft in service that could not generate true economies of scale, esp. when their state-of-the-art design would not permit any export.
Anyway, a global market for simpler fighter aircraft was there, as 1st generation F-16s as well as the worldwide, aging F-5E fleet and types of Soviet/Russian origin like the MiG-29 provided the need for a modern, yet light and economical jet fighter. Contemporary types like the Indian HAL Tejas, the Swedish Saab Gripen, the French Dassault Rafale and the Pakistani/Chinese FC-1/JF-17 ”Thunder” proved this trend among 4th - 4.5th generation fighter aircraft.
Northrop Grumman (Northrop bought Grumman in 1994) initiated studies and basic design work on a respective New Lightweight Fighter (NLF) as a private venture in 1995. Work on the NLF started at a slow pace, as the company was busy with re-structuring.
The idea of an updated lightweight fighter was fueled by another source, too: Israel. In 1998 IAI started looking in the USA for a development partner for a new, light fighter that would replace its obsolete Kfir fleet and partly relieve its F-16 and F-15 fleet from interception tasks. The domestic project for that role, the IAI Lavi, had been stillborn, but lots of its avionics and research were still at hand and waited for an airframe for completion.
The new aircraft for the IAF was to be superior to the MiG-29, at least on par with the F-16C/D, but easier to maintain, smaller and overall cheaper. Since the performance profiles appeared to be similar to what Northrop Grumman was developing under the NLF label, the US company eventually teamed up with IAI in 2000 and both started the mutual project "Namer" (=נמר, “Tiger” in Hebrew), which eventually lead to the F-24 I for the IAF which kept its project name for service and to the USAF’s F-24A “Tigershark”.
The F-24, as the NLF, was based on the F-20 airframe, but outwardly showed only little family heritage, onle the forward fuselage around the cockpit reminds of the original F-5 design . Many aerodynamic details, e. g. the air intakes and air ducts, were taken over from the X-29, though, as the experimental aircraft and its components had been developed for extreme maneuvers and extra high agility. Nevertheless, the X-29's forward-swept wing was considered to be too exotic and fragile for a true service aircraft, but the F-24 was to feature an Active Aeroelastic Wing (AAW) system.
AAW Technology integrates wing aerodynamics, controls, and structure to harness and control wing aeroelastic twist at high speeds and dynamic pressures. By using multiple leading and trailing edge controls like "aerodynamic tabs", subtle amounts of aeroelastic twist can be controlled to provide large amounts of wing control power, while minimizing maneuver air loads at high wing strain conditions or aerodynamic drag at low wing strain conditions. This system was initially tested on the X-29 and later on the X-53 research aircraft, a modified F-18, until 2006.
Both USAF and IAF versions feature this state-of-the-art aerodynamic technology, but it is uncertain if other customers will receive it. While details concerning the F-24's system have not been published yet, it is assumed that its AAW is so effective that canard foreplanes could be omitted without sacrificing lift and maneuverability, and that drag is effectively minimized as the wing profile can be adjusted according to the aircraft’s speed, altitude, payload and mission – much like a VG wing, but without its clumsy and heavy swiveling mechanism which has to bear high g forces. As a result, the F-24 is, compared to the F-20, which could carry an external payload of about 3.5 tons, rumored to be able to carry up to 5 tons of ordnance.
The delta wing shape proved to be a perfect choice for the required surface and flap actuators inside of the wings, and it would also offer a very good compromise between lift and drag for a wide range of performance. Anyway, there was one price to pay: in order to keep the wing profile thin and simple, the F-24’s landing gear retracts into the lower fuselage, leaving the aircraft with a relatively narrow track.
Another major design factor for the outstanding performance of this rather small aircraft was weight reduction and structural integrity – combined with simplicity, ruggedness and a modular construction which would allow later upgrades. Instead of “going big” and expensive, the new F-24 was to create its performance through dedicated loss of weight, which was in some part also a compensation for the AAW system in the wings and its periphery.
Weight was saved wherever possible, e .g. a newly developed, lightweight M199A1 gatling gun. This 20mm cannon is a three-barreled, heavily modified version of the already “stripped” M61A2 gun in the USAF’s current F-18E and F-22. One of the novel features is a pneumatic drive instead of the traditional electric mechanism, what not only saves weight but also improves trigger response. The new gun weighs only a mere 65kg (the six-barreled M61A2 weighs 92kg, the original M61A1 112 kg), but still reaches a burst rate of fire of 1.800 RPM (about 800 RPM under cyclic fire, standard practice is to fire the cannon in 30 to 50-round bursts, though) and a muzzle velocity of 1.050 metres per second (3,450 ft/s) with a PGU-28/B round.
While the F-16 was and is still made from 80% aluminum alloys and only from 3% composites, the F-24 makes major use of carbon fiber and other lightweight materials, which make up about 40% of the aircraft’s structure, plus an increased share of Titanium and Magnesium alloys. As a consequence and through many other weight-saving measures like keeping stealth capabilities to a minimum (even though RAM was deliberately used and many details designed to have a natural low radar signature, resulting in modest radar cross-section (RCS) reductions), a single, relatively small engine, a fuel-efficient F404-GE-402 turbofan, is enough to make the F-24 a fast and very agile aircraft, coupled with a good range. The F-24’s thrust/weight ratio is considerably higher than 1, and later versions with a vectored thrust nozzle (see below) will take this level of agility even further – with the pilot becoming the limiting factor for the aircraft’s performance.
USAF and IAF F-24s are outfitted with Northrop Grumman's AN/APG-80 Active Electronically Scanned Array (AESA) radar, also used in the F-16 Block 60 aircraft. Other customers might only receive the AN/APG-68, making the F-24 comparable to the F-16C/D.
The first prototype, the YF-24, flew on 8th of March 2008, followed by two more aircraft plus a static airframe until summer 2010. In early 2011 the USAF placed an initial order of 101 aircraft (probably also to stir export sales – the earlier lightweight fighters from Northrop suffered from the fact that the manufacturer’s country would not use the aircraft in its own forces). These initial aircraft will replace older F-16 in the interceptor role, or free them for fighter bomber tasks. The USN and USMC also showed interest in the aircraft for their aggressor squadrons, for dissimilar air combat training. A two-seater, called the F-24B, is supposed to follow soon, too, and a later version for 2020 onwards, tentatively designated F-24C, is to feature an even stronger F404 engine and a 3D vectoring nozzle.
Israel is going to produce its own version domestically from late 2014 on, which will exclusively be used by the IAF. These aircraft will be outfitted with different avionics, built by Elta in Israel, and cater to national requirements which focus more on multi-purpose service, while the USAF focusses with its F-24A on aerial combat and interception tasks.
International interest for the F-24A is already there: in late 2013 Grumman stated that initial talks have been made with various countries, and potential export candidates from 2015 on are Taiwan, Singapore, Thailand, Finland, Norway, Australia and Japan.
General F-24A characteristics:
Crew: 1 pilot
Length: 47 ft 4 in (14.4 m)
Wingspan: 27 ft 11.9 in / 8.53 m; with wingtip missiles (26 ft 8 in/ 8.13 m; without wingtip missiles)
Height: 13 ft 10 in (4.20 m)
Wing area: 36.55 m² (392 ft²)
Empty weight: 13.150 lb (5.090 kg)
Loaded weight: 15.480 lb (6.830 kg)
Max. take-off weight: 27.530 lb (12.500 kg)
Powerplant
1× General Electric F404-GE-402 turbofan with a dry thrust of 11,000 lbf (48.9 kN) and 17,750 lbf (79.2 kN) with afterburner
Performance
Maximum speed: Mach 2
Combat radius: 300 nmi (345 mi, 556 km); for hi-lo-hi mission with 2 × 330 US gal (1,250 L) drop tanks
Ferry range: 1,490 nmi (1715 mi, 2759 km); with 3 × 330 US gal (1,250 L) drop tanks
Service ceiling: 55,000 ft (16,800 m)
Rate of climb: 52,800 ft/min (255 m/s)
Wing loading: 70.0 lb/ft² (342 kg/m²)
Thrust/weight: 1.09 (1.35 with loaded weight & 50% fuel)
Armament
1× 20 mm (0.787 in) M199A1 3-barreled Gatling cannon in the lower fuselage with 400 RPG
Eleven external hardpoints (two wingtip tails, six underwing hardpoints, three underfuselage hardpoints) and a total capacity of 11.000 lb (4.994 kg) of missiles (incl. AIM 9 Sidewinder and AIM 120 AMRAAM), bombs, rockets, ECM pods and drop tanks for extended range.
The kit and its assembly:
A spontaneous project. This major kitbash was inspired by fellow user nighthunter at whatifmodelers.com, who came up with a profile of a mashed-up US fighter, created “out of boredom”. The original idea was called F-21C, and it was to be a domestic successor to the IAI Kfirs which had been used by the US as aggressor aircraft in USN and USMC service for a few years.
As a weird(?) coincidence I had many of the necessary ingredients for this fictional aircraft in store, even though some parts and details were later changed. This model here is an interpretation of the original design. The idea was spun further, and the available parts that finally went into the model also had some influence on design and background.
I thank nighthunter for sharing the early ideas, inviting me to take the design to the hardware stage (sort of…) and adapting my feedback into new design sketches, too, which, in return, inspired the model building process.
Well, what went into this thing? To cook up a F-24 à la Dizzyfugu you just need (all in 1:72):
● Fuselage from a Hasegawa X-29, including the cockpit and the landing gear
● Fin and nose cone from an Italeri F-16A
● Inner wings from a (vintage) Hasegawa MiG-21F
● Outer wings from a F-4 (probably a J, Hasegawa or Fujimi)
The wing construction deviates from nighthunter’s original idea. The favorite ingredients would have been F-16XL or simple Mirage III wings, but I found the composite wing to be more attractive and “different”. The big F-16XL wings, despite their benefit of a unique shape, might also have created scale/size problems with a F-20 style fuselage? So I built hybrid wings: The MiG-21 landing gear wells were filled with putty and the F-4 outer wings simply glued onto the MiG inner wing sections, which were simply cut down in span. It sounds like an unlikely combo, but these parts fit together almost perfectly! In order to hide the F-4 origins I modified them to carry wingtip launch rails, though, which were also part of nighthunter’s original design.
The AAW technology detail mentioned in the background came in handy as it explains the complicated wing shape and the fact that the landing gear retracts into the fuselage, not into the wings, which would have been more plausible… Anyway, there’s still room for a simpler export version, with Mirage III or Kfir C.2/7 wings, and maybe canards?
Using the X-29 as basis also made fitting the new wings onto the area-ruled fuselage pretty easy, as I could use the wing root parts from the X-29 to bridge the gap. The original, forward-swept wings were just cut away, and the remains used as consoles for the new hybrid delta wings. Took some SERIOUS putty work, but the result is IMHO fine.
The bigger/square X-29 air intakes were taken over, and they change the look of the aircraft, making it look less F-5-ish than a true F-20 fuselage. For the same reason I kept the large fairing at the fin base, combining it with a bigger F-16 tail, though, as a counter-balance to the new, bigger wings. Again, the F-16 fin was/is part of nighthunter’s idea, so the model stays true to the original concept.
For the same reason I omitted the original X-29 nose, which is rather pointy, sports vanes and a large sensor boom. The F-16 nose was a plausible choice, as the AN/APG-80 is also carried by late Fighting Falcons, and its shape fits well, too.
All around the hull, some small details like radar warning sensors, pitots and air scoops were added. Not really necessary, but such thing add IMHO to the overall impression of such a fictional aircraft beyond the prototype stage.
Cockpit and landing gear were taken OOB, I just added a pilot figure and slightly modified the seat.
The ordnance was puzzled together from the scrap box, the AIM-9Ls come from the same F-4 kit which donated its outer wings, the AIM-120s come from an Italeri NATO weapons kit. The drop tanks belong to an F-16.
Painting and markings:
At first I considered an F-24I in IAF markings, or even a Japanese aircraft, but then reverted to one of nighthunter’s initial, simple ideas: an USAF aircraft in the “Hill II” paint scheme (F-16 style), made up from three shades of gray (FS 36118, 36270 and 36375) with low-viz markings and stencils. Dutch/Turkish NF-5A/Bs in the “Hill II” scheme were used as design benchmarks, too. It’s a simple livery, but on this delta wing aircraft it looks pretty interesting. I used enamels, what I had at hand: Humbrol 127 and 126, and Modelmaster's 1723.
A light black ink wash was applied, in order to em,phasize the engraved panel lines, in contrast to that, panels were manually highlighted through dry-brushed, lighter shades of gray (Humbrol 27, 166 and 167).
“Hill II” also adds to a generic, realistic touch for this whif. Doing an exotic air force thing is rather easy, but creating a convincing whif for a huge military machinery like the USAF’s takes more subtlety, I think.
The cockpit was painted in medium Gray (Dark Gull Grey, FS 36231, Humbrol 140), as well as the radome. The landing gear and the air intakes were painted white. The radome was painted with Revell 47 and dry-brushed with Humbrol 140.
Decals were puzzled together from various USAF aircraft, including sheets from an Airfix F-117, an Italeri F-15E and even an Academy OV-10D.
Tadah: a hardware tribute to an idea, born from boredom - and the aircraft does not look even bad at all? What I wanted to achieve was to make the F-24 neither look like a F-20, nor a Saab Gripen clone, as the latter comes close in overall shape, size and design.
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based on historical facts. BEWARE!
Some background:
After the Second World War, France’s armored force consisted, almost entirely, of US-built vehicles, such as the M4 Sherman, M26 Pershing, and M24 Chaffee (among others). France received these vehicles as aid as part of the Marshall Plan and the Mutual Defense Assistance Act (MDAA). These aid pacts also financed the reconstruction of France’s economy and armed forces from 1948 until the late 1950s. In April 1949, the North Atlantic Treaty was signed, and NATO was born, resulting in the United States extending the MDAA. This resulted in France receiving newer vehicles, such as the M47 Patton II tank.
In total, France would operate around 1,250 M24s which were identical to their US counterparts. It was a small tank at 5.45 meters (16 ft 4 in) long, 2.84 meters (9ft 4in) wide, and 2.61 meters (9ft 3in) tall. It weighed 16.6 tonnes (18.37 tons), utilized a torsion bar suspension, and was armed with a 75 mm gun. The tank had a 5-men crew: Commander, Gunner, Loader, Driver, Bow Gunner. The ‘Chaffee’ was named after WWI US Army General, Adna R. Chaffee Jr.
In 1956, the French Army and the Direction des Etudes et Fabrications d’Armements (Directorate of Studies and Manufacture of Armaments, DEFA, an institution within the French Military) were looking into affordable methods of modernizing their fleet of aging M24 Chaffee light tanks, which had been operated since WWII. One method was to somehow combine France’s new domestic light tank, the AMX-13, with the M24.
Initially, this led to the mating of the AMX-13’s FL-10 oscillating turret to the hull of the Chaffee, as the most logical step to improve the M24s. While cheap and feasible, this configuration never went further than trials. This was largely due to a perceived safety issue with the High-Explosive (HE) rounds fired by the CN 75-50 cannon. Inside the FL-10 turret, the CN 75-50 gun was fed via an automatic loading system, which was reloaded externally. If an alternate shell-type needed to be fired, HE, for example, it had to be loaded into the breach manually by the Commander. This was a tricky task in the tight confines of the turret on the standard AMX, made worse by the notoriously sensitive fuze of the HE rounds. This process would be even more dangerous on the smaller hull of the Chaffee. As a result, the inverse of this mounting was decided upon, mounting the Chaffee’s turret on the AMX-13’s hull.
The officially designated AMX-US was a result of this, even though there were many other unofficial names, including ‘AMX-13 Chaffee’ – as it was known by troops – or ‘AMX-13 Avec Tourelle Chaffee (with Chaffee Turret)’. By 1957, work on the inverse of mounting the Chaffee turret to the AMX hull had begun, what was regarded as a safer and easier alternative, and it was also a convenient way of recycling useful Chaffee turrets by separating them from their worn hulls. It also created a vehicle lighter than the regular Chaffee, meaning it was easier to transport.
The M24 turrets went through very little modification for their installation, retaining all the same main features. The only modification necessary was the introduction of an adapter or ‘collar’ to the AMX hull’s turret ring. This was needed as the Chaffee turret had quite a deep basket. The collar granted the basket clearance from the hull floor for uninterrupted, full 360-degree rotation.
The Chaffee turret was a standard design with a typical 3-man crew of the time: Gunner, Loader, and Commander. The Commander sat at the left rear of the turret under a vision-cupola, the gunner sat in front of him. The loader was located at the right-rear of the turret under his own hatch. Armor on the turret was 25 mm (.98 in) thick on all sides, with the gun mantlet being 38 mm (1.49 in) thick.
The AMX-US was operated by a four-man crew, as opposed to the three-man crew of the standard Mle 51, due to the three-man turret of the Chaffee. Armament consisted of the 75 mm Lightweight Tank Gun M6 which had a concentric recoil system (this was a hollow tube around the barrel, a space-saving alternative to traditional recoil cylinders). Variants of this gun were also used on the B-25H Mitchell Bomber, and the T33 Flame Thrower Tank prototype. The shell velocity was 619 m/s (2,031 ft/s) and had a maximum penetration of 109 mm. The elevation range of the gun was around -10 to +13 degrees. Secondary weapons were also retained. This included the coaxial .30 Cal (7.62 mm) Browning M1919 Machine Gun, and the .50 Caliber (12.7 mm) M2 Browning Heavy Machine gun which was mounted on the rear of the turret roof.
Apart from the adaptor or ‘collar’, the AMX hull went through no alterations. It retained the same dimensions, and forward-mounted engine and transmission. The tank was powered by a SOFAM Model 8Gxb 8-cylinder, water-cooled petrol engine developing 250 hp, propelling the tank to a top speed of around 60 km/h (37 mph). The vehicle ran on a torsion bar suspension with five road-wheels, two return rollers, a rear-mounted idler, and a forward-mounted drive-sprocket. The driver was positioned at the front left of the hull, behind the transmission and next to the engine.
Trials with what would be designated the ‘AMX-US’ were undertaken between December 1959 and January 1960. The vehicle was well received, with an order for 150 conversions being placed by the French military in March 1960. Conversion work was carried out at a plant in Gien, North-Central France.
The AMX-US saw brief service in the War in Algeria – otherwise known as the Algerian War of Independence or Algerian Revolution. One known operator was the 9e Régiment de Hussards (9th Hussar Regiment) based in Oran. They served well, but a few were lost in combat, but there is no evidence to suggest they served in any other location with the French military, such as in France or West Germany based regiments.
After the conflict in Algeria, the vehicles were returned to France, but they did not last long in active service after this. Many vehicles were being repurposed into driver trainers. For this, the vehicles were disarmed, with the 75 mm gun and mantlet removed from the turret face and a large plexiglass windscreen was installed in its place.
About fifty surplus AMX-US were sold as scout tanks to Israel, because the AMX-13, which had been procured and operated by the IDF since 1956 in great numbers, was used as a battle tank, so that no IDF reconnaissance unit used the AMX 13. The AMX-US was a perfect and cheap alternative to fill this operational gap, and the vehicles, delivered in 1963, took actively part in the 1967 Six-Day-War.
During these battles, the IDF soon realized that the AMX-13 tank in general was too lightly armored and lacked firepower, and this was even more true for the AMX-US with its vintage WWII gun. Losses were heavy at places like Rafah Junction and Jiradi Pass with many tanks destroyed by heavier Arab-fielded Soviet armor, such as T-55 MBTs and IS-3 heavy tanks. After that, both the AMX-13 and the AMX-US were gradually phased out by the IDF, either sold to other nations (e. g. Thailand), broken up for spares or preserved and stored in depots.
In 1975, a handful of these mothballed AMX-US were, together with other outdated Six-Day-War M50 Sherman veterans, re-activated and handed over to the South Lebanese Army (SLA). The SLA was a Christian militia during the Lebanese Civil War, opposing Muslim militias supported by Syria. The SLA received a total of 15 AMX-US, plus 35 M50s, and all these tanks were painted in a characteristic light blue-grey color. The SLA kept these tanks operational and active for a surprisingly long period, the last confirmed appearance of an SLA AMX-US in battle was in 1988. Even after the retirement of the last operational specimen, the SLA still used the AMX-US for training and security duties.
In 2000, nearly ten years after the end of the civil war, the SLA disbanded, and the surviving former IDF tanks were returned to Israel to prevent them from falling into the wrong hands – spelling the end to the AMX-US long career, of which four were returned and subsequently scrapped.
Specifications:
Crew: Four (Commander, Loader, Gunner, Driver)
Weight: 15 tons
Length: 4.88 m (16 ft) overall
Width: 2.51 m (8 ft 2 in)
Height: 2.30 m (7 ft 5 in)
Suspension: Torsion arms; Tracked chassis, 5 roadwheels, drive sprocket front, idler rear,
3.00 m length, 0.35 width, 2.16 m track
Ground clearance: 0.37 m (1 ft 2½ in)
Fording depth: 2 ft (0.6 m) unprepared, 6.9 ft (2.1 m) with snorkel
Grade: 60%
Side slope: 60%
Trench crossing: 1.6 m (5 ft 3 in)
Vertical wall climb: 0.65 m (2 ft 1½ ft)
Fuel capacity: 480 l (127 gal)
Engine:
1× water-cooled Renault SOFAM Model 8Gxb 8-cylinder gasoline with 250 hp
Transmission:
Hydramatic automatic transmission; 8 speeds forward, 4 reverse
Armor:
Hull: 10 - 40 mm (1.57 in)
Turret: max. 38 mm (1.49 in)
Performance:
Speed: 60 km/h (40 mph) maximum, road
Operational range: 350 km (217 mi) on streets with internal fuel only
Power/weight: 17 hp/t
Armament:
1× 75 mm Lightweight Tank Gun M6 in Mount M64 with 48 rounds
1× co-axial 0.30 Cal. (7.62 mm) Browning M1919 machine gun, 2.200 rounds
1× 0.50 Caliber (12.7 mm) M2 Browning anti-aircraft heavy machine gun, 440 rounds
The kit and its assembly:
This fictional tank model is the result of recycling: After a T-34 conversion, which used an AMX-13 turret, I was left with the chassis of a 1:72 Heller kit. The latter is a rather simple and primitive affair, with many wrong details and a very weak running gear. From another, even older conversion project I also had an almost complete turret from a Hasegawa M24 Chaffee left over. When I stumbled in literature over the French AMX-US hybrid I decided to use these leftover bits to create one!
The AMX-13 chassis was taken OOB, because I did want to invest too much energy into this build, despite its many flaws. Its running gear is rubbish, the vinyl tracks featureless, and overall the detail level is rather soft. From a distance it looks like an AMX-13, but any closer inspection reveals the model's simplicity and toy-likeness. The Chaffee turret was also built with the original parts – but I had to replace the gun barrel and find a replacement for the gunner’s hatch.
Nevertheless, some scratch work had to be done. The biggest challenge was the AMX-US’ characteristic turret adapter ring, which markedly raises the M24 turret above the AMX-13 hull. My solution became a manually bent a piece of soft styrene profile - it’s not perfectly circular, but that’s not obvious when the turret is in place, and it looks the part. Furthermore, some small bits were added to hide flaws and distract. These include vertical bars in the exhaust opening, shallow storage boxes on the fenders (hiding the wacky distance ring) and tarpaulin/cammo net packs (created from paper tissue and nylon stockings drenched with white glue). The commander cupola’s hatch was left open and a figure (an ESCI German WWII tank commander) added, to make the model appear livelier. Since the M24’s AA machine gun had been gone, I had to replace it with one from an ESCI Merkava, its mount was moved in front of the cupola.
Painting and markings:
Initially, I just had the French army as potential operator for the AMX-US but found that rather boring due to the very limited livery options: any French tank from the era would have carried a dark olive-green livery, even those operated in North Africa! Some French M24s had been operated in South-East Asia in a sand/green/brown/green jungle scheme, but the time frame would not match well. So, I checked other AMX-13 operators and took liking in an IDF vehicle. However, while looking for potential liveries I came upon the SLA. The AMX-US, had it been handed over to the IDF, could have been among these donor tanks, and their unique (if not spectacular) light blue livery made them outstanding. I am not certain whether the blue tone was intended as serious camouflage or just as an IFF measure? However, among typical light rocks and mountains of the Lebenon and in dusty/hazy air, the bluish tone actually works quite fine, better than expected.
While a uniform livery is not complex, finding a suitable tone for the model took a while. Real life color pictures (of dubious quality) show a wide range of light blue and/or grey tones, ranging from a bright sky blue over pale grey (like FS 36375) to a medium bluish grey (FS 35237), frequently with severe signs of weathering/sun-bleaching which makes some tanks appear almost white. Some M50s also had olive drab or dark grey patches or patterns added on top as additional camouflage.
After testing several options I chose RLM78 (Modelmaster 2088) as basic tone. Odd choice, but it turned out to be light enough, is a rather blue tone (with a slight hint of green), but still dull enough to look like a military tone. An overall washing with a mix of grey, black and red brown followed, and then the model received a thorough, overall dry brushing treatment with various shades of light blue grey, including Modelmaster RLM76, FS 36320 and Revell 75, for a worn and bleached appearance.
The markings had to be completely improvised, though, and were created with Corel Draw on an ink jet printer and with white and clear decal paper. They include the SLA’s cedar tree emblem and the Arabic tactical codes. The white “X” markings were created with generic decal stripes.
After the model had been sealed with matt acrylic varnish, sand and dust residues were created with watercolors, and some beige mineral pigments were dusted into the running gear and over the upper surfaces.
A quick build and a good use of leftover parts from other projects, melded into a plausible result. The SLA livery adds a weird twist to this model, even though it is – in the end – just a mix of real-world elements: the AMX-US existed, and the SLA operated light blue tanks! Life is sometimes stranger than fiction.
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
The Soviet Laboratory of High-Speed Automobiles (LSA ChADI, today the Chardiv National Automobile and Highway University) was founded in 1953. One of the laboratory’s founders was Vladimir Nikitin, a famous racer not only inside the Soviet Union but also around the world. The main purpose of Vladimir Nikitin’s of was to build the fastest car in the world. This idea of creating race cars became the purpose of the laboratory and has been continued by students of Nikitin throughout the years, with research and prototypes in various fields of car propulsion.
The first car created in LSA by students was ChADI 2 in 1961. The body of the car was made of fiberglass, the first time that this material was used for a car body in the Soviet Union. This technology was improved and later used in mass-produced cars. Another famous LSA car was ChADI 7. To create it, Nikitin and his students used airplane wing elements as car body material and used the engine from a helicopter to power it. The highest speed of ChADI 7 – 400 kilometers per hour – was recorded on an airport runway near Chardiv in 1968, and it was at that time the fastest car in the Soviet Union, setting the national land speed record.
After this successful vehicle, Vladimir Nikitin started a new, even more ambitious project: a speed record car with the jet engine from a high performance airplane! The name of this project was ChADI 9, and it was ambitious. This time Nikitin and his team used a Tumansky RD-9 turbojet engine with a dry thrust of 25.5 kN (5,730 lbf), the same engine that powered the supersonic Mikoyan-Gurewich MiG-19 fighter plane. He expected that this needle-shaped car would be able to break the absolute land speed record, which meant supersonic speed at level zero of almost 1.200 kilometers an hour. The car was finished in 1981, but unfortunately ChADI 9 never participated in any race and no official top speed result was ever recorded. This had initially a very practical reason: in the 1980’s there were simply no tires in the USSR that could be safely used at the expected speeds in excess of 400 km/h, and there was furthermore no track long enough for a serious test drive in the Soviet Union! In consequence, ChADI 9 had to be tested on the runway of a military airport in the proximity of Chardiv, outfitted with wheels and tires from a MiG-19, but these were not ideal for prolonged high speeds. Film footage from these tests later appeared in a 1983 movie called “IgLa”.
The Automotive Federation of the United States even invited ChADI 9 to participate in an official record race in the USA, but this did not happen either, this time for political reasons. Nevertheless, the main contribution of this car was gathering experience with powerful jet engines and their operations in a ground vehicle, as well as experience with car systems that could withstand and operate at the expected high levels of speed, and the vehicle was frequently tested until it was destroyed in high speed tests in 1988 (see below).
ChADI 9 was not the end of Nikitin’s strife for speed (and the prestige associated with it). The know-how that the design team had gathered in the first years of testing ChADI 9 were subsequentially integrated into the LSA’s ultimate proposal not only to break the national, but also the absolute land speed record: with a new vehicle dubbed ChADI 9-II. This car was a completely new design, and its name was deliberately chosen in order to secure project budgets – it was easier to gain support for existing (and so far successful) projects rather than found new ones and convince superior powers of their value and success potential.
ChADI 9-II’s conceptual phase was launched in 1982 and it was basically a scaled-up evolution of ChADI 9, but it featured some significant differences. Instead of the RD-9 turbojet, the new vehicle was powered by a much more potent Tumansky R-25-300 afterburning turbojet with a dry thrust of 40.21 kN (9,040 lbf) and 69.62 kN (15,650 lbf) with full afterburner. This new engine (used and proven in the MiG-21 Mach 2 fighter) had already been thoroughly bench-tested by the Soviet Laboratory of High-Speed Automobiles in 1978, on an unmanned, tracked sled.
However, the development of ChADI 9-II and its details took more than two years of dedicated work by LSA ChADI’s students, and in 1984 the design was finally settled. The new vehicle was much bigger than its predecessor, 44 ft 10 in long, 15 ft 6¾ in wide, and 9 ft 10¾ in high (13.67 m by 4,75 m by 3,02 m), and it weighed around 9,000 lb (4 t). Its construction was based on a steel tube frame with an integrated security cell for the driver and an aluminum skin body, with some fibre glass elements. While ChADI 9’s slender cigar-shaped body with a circular diameter and the tricycle layout were basically retained, the front end of ChADI 9-II and its internal structure were totally different: instead of ChADI 9’s pointed nose, with the cockpit in the front and ahead of the vehicle’s front wheel and a pair of conformal (but not very efficient) side air intakes, ChADI 9-II featured a large, single orifice with a central shock cone. A small raked lower lip was to prevent FOD to the engine and act at the same time as a stabilizing front spoiler. The driver sat under a tight, streamlined canopy, the bifurcated air intake ducts internally flanking the narrow cockpit. Two steerable front wheels with a very narrow track were installed in front of the driver’s compartment. They were mounted side by side on a central steering pylon, which made them look like a single wheel. Behind the cockpit, still flanked by the air ducts, came two fuel tanks and finally, after a chamber where the air ducts met again, the engine compartment. Small horizontal stabilizers under the cockpit, which could be adjusted with the help of an electric actuator, helped keeping the vehicle’s nose section on the ground. Two small air brakes were mounted on the rear fuselage; these not only helped to reduce the vehicle’s speed, they could also be deployed in order to trim the aerodynamic downforce on the rear wheels. The latter ware carried on outriggers for a wide and stable track width and were covered in tight aerodynamic fairings, again made from fibre glass. The outriggers were furthermore swept back far enough so that the engine’s nozzle was placed in front of the rear wheel axis. This, together with a marked “nose-down” stance as well as a single swept fin on the rear above the afterburner nozzle with a brake parachute compartment, was to ensure stability and proper handling at expected speeds far in excess of 600 km/h (372 mph) without the use of the engine’s afterburner, and far more at full power.
Construction of ChADI 9-II lasted for more than another year, and in May 1986 the vehicle was rolled out and ready for initial trials at Chardiv, this time on the Chardiv State Aircraft Manufacturing Company’s runway. These non-public tests were successful and confirmed the soundness of the vehicle’s concept and layout. In the course of thorough tests until July 1987, ChADI 9-II was carefully pushed beyond the 400 km/h barrier and showed certain potential for more. This was the point when the vehicle was presented to the public (it could not be hidden due to the noisy trials within Chardiv’s city limits), and for this occasion (and marketing purposes) ChADI 9-II received a flashy livery in silver with red trim around the air intake and long the flanks and was officially christened with the more catchy title “„скорость“” (Skorost = Velocity).
Meanwhile, a potential area for serious high-speed trials had been identified with Lake Baskunchak, a salt sea near the Caspian Sea with flat banks that resembled the Bonneville Salt Flats in the USA. Lake Baskunchak became the site of further tests in 1988. Initially scheduled for May-July, the tests had to be postponed by six weeks due to heavy rain in the region, so that the sea would not build suitable dry salt banks for any safe driving tests. In late June the situation improved, and „скорость“ could finally take up its high speed tests.
During the following weeks the vehicle was gradually taken to ever higher speeds. During a test run on 8th of September, while travelling at roundabout 640 km/h (400 mph), one of the tail wheel fairings appeared to explode and the ensuing drag differences caused heavy oscillations that ended in a crash at 180 km/h (110 mph) with the vehicle rolling over and ripping the left rear wheel suspension apart.
The driver, LSA student and hobby rally driver Victor Barchenkov, miraculously left the vehicle almost unscathed, and the damage turned out to be only superficial. What had happened was an air pressure congestion inside of the wheel fairing, and the increasing revolutions of the wheels beyond 600 km/h caused small shock waves along the wheels, which eventually blew up the fairing, together with the tire. This accident stopped the 1988 trials, but not the work on the vehicle. Another disaster struck the LSA ChADI team when ChADI 9, which was still operated, crashed in 1988, too, and had to be written off completely.
In mid-1989 and with only a single high speed vehicle left, LSA team appeared again with „скорость“ at the shores of Lake Baskunchak – and this time the weather was more gracious and the track could be used from late June onwards. Analyzing last year’s accident and the gathered data, the vehicle had undergone repairs and some major modifications, including a new, anti-corrosive paintjob in light grey with red and white trim.
The most obvious change, though, was a completely re-shaped nose section: the original raked lower air intake lip had been considerably extended by almost 5 feet (the vehicle now had a total length of 49 ft 1 in/14,98 m) in order to enhance the downforce on the front wheels, and strakes along the lower nose ducted the airflow around the front wheels and towards the stabilizing fins. The central shock cone had been elongated and re-contoured, too, improving the airflow at high speeds.
New tireless all-aluminum wheels had been developed and mounted, because pressurized rubber tires, as formerly used, had turned out to be too unstable and unsafe. The central front wheels had received an additional aerodynamic fairing that prevented air ingestion into the lower fuselage, so that steering at high speeds became safer. The aerodynamic rear wheel fairings had by now been completely deleted and spoilers had been added to the rear suspension in order to keep the rear wheel on the ground at high speeds.
This time the goal was to push „скорость“ and the national land speed record in excess of 800 km/h (500 mph), and step by step the vehicle’s top speed was gradually increased. On August 15, an officially timed record attempt was made, again with Victor Barchenkov at the steering wheel. The first of the two obligatory runs within an hour was recorded at a very promising 846.961 km/h (526.277 mph), but, at the end of the second run, „скорость“ veered off and no time was measured. Even worse, the vehicle lost its parachute brakes and went out of control, skidding away from the dry race track into Lake Baskunchak’s wet salt sludge, where it hit a ground wave at around 200 mph (320 km/h) and was catapulted through the air into a brine pond where it landed on its right side and eventually sank. Again, pilot Victor Barchenkov remained mostly unharmed and was able to leave the car before it sank – but this fatal crash meant the end of the „скорость“ vehicle and the complete KhAGI 9-II project. Furthermore, the break-up of the Soviet Union at the same time prevented and further developments of high speed vehicles. The whereabouts of the „скорость“ wreck remain unclear, too, since no official attempt had been made to save the vehicle’s remains from Lake Baskunchak’s salt swamps.
The kit and its assembly:
This is another contribution to the late 2018 “Racing & Competition Group Build” at whatifmodelers.com. Since I primarily build aircraft in 1:72 scale, building a land speed record (LSR) vehicle from such a basis appeared like a natural choice. A slick streamliner? A rocket-powered prototype with Mach 1 potential? Hmmm… However, I wanted something else than the typical US or British Bonneville Salt Flats contender.
Inspiration struck when I remembered the real world high speed vehicle projects of LSA ChAGI in the former USSR, and especially the ill-fated, jet-powered ChADI 9, which looked a lot like Western, rocket-powered absolute LSR designs like The Blue Flame or Wingfoot Express 2. Another inspiration was a contemporary LSR vehicle called North American Eagle – basically a wingless F-104 Starfighter, put on wheels and sporting a garish, patriotic livery.
With this conceptual basis, the MiG-21 was quickly identified as the potential starting basis – but I wanted more than just a Fishbed sans wings and with some bigger wheels attached to it. I nevertheless wanted to retain the basic shape of the aircraft, but change the rest as good as possible with details that I have learned from reading about historic LSR vehicles (a very good source are the books by German author and LSR enthusiast Ferdinand C. W. Käsmann, which have, AFAIK, even been translated into English).
At the model’s core is a contemporary KP MiG-21MF, but it’s a hideous incarnation of the venerable Kovozávody Prostějov mold. While the wheels and the dashboard of this kit were surprisingly crisp, the fuselage halves did hardly match each other and some other parts like the landing gear covers could only be described as “blurred blobs”. Therefore it was no shame to slice the kit up, and the resulting kitbash with many donor parts and scratching almost became a necessity.
The MiG-21 fuselage and cockpit were more or less retained, the landing gear wells covered and PSR-ed. Fin, spine and the ventral stabilizer were cut away, and the attachment points for the wings and the horizontal stabilizers blended into the rest of the fuselage. Actually, only a few parts from the KP MiG-21 were eventually used.
The original shock cone in the air intake was used, but it was set further back into the nose opening – as an attachment point for a new, more organic shock cone which is actually the rear end of a drop tank from an Airfix 1:72 P-61 Black Widow. This detail was inspired by a real world benchmark: Art Arfons’ home-built “Green Monster” LSR car. This vehicle also inspired the highly modified air intake shape, which was scratched from the tail cone from a Matchbox 1:72 Blackburn Buccaneer – the diameter matched well with the MiG-21’s nose! With the new nose, I was able to retain the original MiG-21 layout, yet the shape and the extension forward changed the overall look enough to make it clear that this was not simply a MiG-21 on wheels.
With the spine gone, I also had to integrate a different, much smaller canopy, which came from an 1:144 Tornado. The cockpit opening had to be narrowed accordingly, and behind the canopy a new spine fairing was integrated – simply a piece from a streamlined 1:72 1.000 lb bomb plus lots of PSR.
Inside of the cockpit, a simpler seat was used, but the original cockpit tub and the dashboard were retained.
The large MiG-21 fin was replaced with a smaller piece, left over from an Amodel Kh-20 missile, with a scratched brake parachute fairing (cut from sprue material) placed under its rear. The exhaust nozzle was replaced, too, because the fit of the KP MiG-21’s rear end was abysmal. So I cut away a short piece and added an afterburner nozzle from a vintage 1:72 F-100, which fits well. Inside, the part’s rear wall was drilled open and extended inwards with a styrene tube.
The wheels of the vehicle come from an 1:72 Hasegawa “Panther with Schmalturm” tank kit – it comes not only with two turrets, but also with a second set of simplified track wheels. These had IMHO the perfect size and shape as massive aluminum wheels for the high speed vehicle.
For the front wheels, I used the thinner outer Panther wheels, and they were put, closely together, onto a central suspension pylon. This received a new “well” in the forward fuselage, with an internal attachment point. In order to streamline the front wheel installation (and also to change the overall look of the vehicle away from the MiG-21 basis), I added a scratched an aerodynamic fairing around it. This was made from tailored styrene strips, which were later filled and blended into the hull with putty.
The rear suspension was also fully scratched: the outriggers were made from styrene profiles while the wheel attachments were once part of an 1:35 tank kit suspension – I needed something to hold the three struts per side together. These parts look a bit large, but the vehicle is, after all, a Soviet design, so a little sturdiness may not be wrong, and I simply did not want to stick the wheels directly onto the outriggers. The rear wheels (in this case, the wider inner Panther track wheels with a central hub cover were used) also received a stabilizing notch around the contact surface, in an attempt to make them look slimmer than they actually are.
Final touches included the chines under the nose as well as spoilers on the rear suspension (both made from styrene profiles), and I added a pitot made from wire to the original MiG-21 angle of attack sensor fairing.
As an addition outside the model itself I also created a display base for the beauty pics, since I did not have anything at hand that would resemble the vastness of a flat and dry salt sea. The base is an 18x12” MDF board, on top of which I added a thin coat of white tile grout (which I normally use as a snow placebo, instead of plaster, which tends to absorb humidity over time and to become yellow). While the stuff was still wet I sprinkled some real salt onto the surface and wetted the whole affair with water sprays – hoping to create a flat yet structured surface with some glitter reflexes. And it actually worked!
Painting and markings:
I am not certain how ChADI 9 was painted (I assume overall silver), but I wanted for „скорость“ a little more color. Being a child of the Soviet era, red was a settled design element, but I thought that an all-red vehicle might have looked too cheesy. Other colors I considered were orange or white with blue trim, but did not find them to be appropriate for what I was looking. Eventually, I added some Russian Utilitarianism in the form of light grey for the upper hull (Humbrol 166, RAF Light Aircraft Grey), and the red (Humbrol 19) as a dark contrast around the complete air intake as well as the shock cone (somewhat inspired by the Green Monster #15 LSR vehicle), and then extended backwards into a narrowing cheatline along the flanks, which emphasizes the vehicle’s slender hull. For some more contrast between the two basic tones I later added thin white borders between them created with 2mm white decal stripes from TL Modellbau. Around the hull some bright red (Humbrol 238 Red Arrows Red) highlights as warning signs were added.
The vehicle’s afterburner section was painted with Modelmaster Steel Metallizer, the Panther wheels became Aluminum (Revell 99) with a black ink wash. Some black ink was also applied to the jet nozzle, so that the details became more pronounced, and some grinded graphite was used to enhance the burnt metal effect.
Since this would rather be an experimental car built and operated by a high school institute, and also operated in the Soviet Union, flashy sponsor markings would not be appropriate. Therefore I created some fictional marking at home with the help of PC software and printed them by myself. These designs included a fictional logo of the ChADI institute itself (created from a car silhouette drawing) and a logo for the vehicle’s title, “„скорость““. The latter was created from the cyrillic lettering, with some additions like the vehicle’s silhouette.
Unfortunately the production process for the home-made decals did not work properly – when coating the prints with gloss acrylic varnish the printer ink started to dissolve, bleeding magenta, so that the decals would look as if there was a red halo or glow around the otherwise black motifs. Thanks to the use of red in the vehicle’s overall design this flaw is not too apparent, so I stuck with the outcome and applied the decals to the car.
Beyond these basic markings, many stencils were added, including dull red inscriptions from an Italeri MiG-37 “Ferret” kit – finally, I found an expedient use for them! The Soviet flags on the fin came from an 1:144 Tu-144 airliner Braz Decal aftermarket sheet.
Finally, some panel lines were drawn onto the hull with a soft pencil and then the model was sealed with Italeri semi-gloss acrylic varnish. Just the black anti-glare panel in front of the windscreen became matt and the metallic rear section was left in “natural” finish.
I am very pleased with the outcome – the „скорость“ looks purposeful and does IMHO blend well into the line of spectacular USA and UK jet/rocket car designs that broke the 800 km/h barrier. I also find that, even though the MiG-21 ancestry is certainly there, the vehicle looks different enough so that the illusion that it was designed along the jet fighter’s lines (and not converted from one, like the real world “North American Eagle” which was built from an F-104 Starfighter) works well. I also think that the vehicle’s livery works well – it looks quite retro for a vehicle from the late Eighties, but that just adds to the “Soviet style”. An interesting project, outside of my normal comfort zone. :D
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based on historical facts. BEWARE!
Some background:
The Indian „Samudree Baaj“ (समुद्री बाज, Sea Hawk) was a highly modified, navalized version of the British BAE Systems Hawk land-based training jet aircraft, which had been manufactured under license by Hindustan Aeronautics Limited (HAL). The first indigenously built Hawk Mk. 132 trainer was delivered in 2008 to the Indian Air Force, and the type has since then been updated with indigenous avionics into the “Hawk-I” Mk. 132 from 2020 onwards. The aircraft’s Rolls Royce Adour Mk 871 engine was also license-built by HAL, and the company had experience from a wide range of aircraft projects in the past.
The Samudree Baaj project was initiated in 2006 by the Indian Navy, as part of the long historic plan to provide the Indian Navy with a fully capable aircraft carrier. This plan had been initiated in 1989, when India announced a plan to replace its ageing British-built aircraft carriers, INS Vikrant and INS Viraat (ex-HMS Hermes), with two new 28,000-ton Air Defence Ships (ADS) that would operate the BAe Sea Harrier aircraft. The first vessel was to replace Vikrant, which was set to decommission in early 1997. Construction of the ADS was to start at the Cochin Shipyard (CSL) in 1993 after the Indian Naval Design Organisation had translated this design study into a production model. Following the 1991 economic crisis, the plans for construction of the vessels were put on hold indefinitely.
In 1999, then-Defence Minister George Fernandes revived the project and sanctioned the construction of the Project “71 ADS”. By that time, given the ageing Sea Harrier fleet, the letter of intent called for a carrier that would carry more modern jet fighters. In 2001, CSL released a graphic illustration showing a 32,000-ton STOBAR (Short Take-Off But Arrested Recovery) design with a pronounced ski jump. The aircraft carrier project finally received formal government approval in January 2003. By then, design updates called for a 37,500-ton carrier to operate the MiG-29K. India opted for a three-carrier fleet consisting of one carrier battle group stationed on each seaboard, and a third carrier held in reserve, in order to continuously protect both its flanks, to protect economic interests and mercantile traffic, and to provide humanitarian platforms in times of disasters, since a carrier can provide a self-generating supply of fresh water, medical assistance or engineering expertise to populations in need for assistance.
In August 2006, then-Chief of the Naval Staff, Admiral Arun Prakash stated that the designation for the vessel had been changed from Air Defence Ship (ADS) to Indigenous Aircraft Carrier (IAC). The euphemistic ADS had been adopted in planning stages to ward off concerns about a naval build-up. Final revisions to the design increased the displacement of the carrier from 37,500 tons to over 40,000 tons. The length of the ship also increased from 252 metres (827 ft) to 262 metres (860 ft).
It was at this time that, beyond the MiG-29K, primarily a carrier-capable trainer and also a light (and less costly) strike aircraft would be needed. With the running production of the Hawk Mk. 132 for the Indian Air Force and BAE Systems’ connection and experience to the USA and McDonnell/Boeing’s adaptation of the Hawk as the US Navy’s carrier-capable T-45 trainer, HAL was instructed to develop a suitable aircraft family on the Hawk’s basis for the new carriers.
HAL’s Samudree Baaj is a fully carrier-capable version of the British Aerospace Hawk Mk. The Hawk had not originally been designed to perform carrier operations, so that numerous modifications were required, such as the extensive strengthening of the airframe to withstand the excessive forces imposed by the stresses involved in catapult launches and high sink-rate landings, both scenarios being routine in aircraft carrier operations.
The aerodynamic changes of the aircraft, which were mutually developed by HAL and BAE Systems, included improvements to the low-speed handling characteristics and a reduction in the approach speed. Most notable amongst the changes made to the Hawk's design were extended flaps for better low-speed handling, along with the addition of spoilers on the wings to reduce lift and strakes on the fuselage which improved airflow and stabilizer efficiency.
Other, less obvious modifications included a reinforced airframe, the adoption of a more robust and widened landing gear, complete with a catapult tow bar attachment to the oleo strut of the new two-wheel nose gear design, and an arresting hook. The tail fin was extended by 1 foot (12 in, 30.5 cm) to compensate for the loss of the Hawk’s ventral stabilizing strakes. To make room for the arrester hook, the original ventral air brake was split and re-located to the flanks, similar to the USN’s T-45 trainer.
At the time of the Samudree Baaj’s design, the exact catapult arrangement and capacity on board of India’s new carriers was not clear yet – even more so, since the MiG-29K and its powerful engines might have made a catapult obsolete. Therefore, the Samudree Baaj was designed to be operable either with a ski jump ramp (in the style of the Russian Kiev class carriers, of which India had purchased one as INS Vikramaditya) or with only minimal launch support within the projected STOBAR concept, which included a relatively short-stroke steam catapult and a similarly short, undampened arrester gear.
By 2009 the basic airframe had been defined and four prototypes were built for two versions: the Mk. 101 trainer, which was basically a navalized version of the land-based Mk. 132 with almost the same mission equipment, and the Mk. 201, a single-seater. Two airframes of each type were built and the first Samudree Baaj flight took place in early 2011. The Indian government ordered 30 trainers and 15 attack aircraft, to be delivered with the first new Indian carrier, INS Vikrant, in late 2017.
The Samudree Baaj Mk. 201 was developed from the basic navalized Hawk airframe as a light multirole fighter with a small visual signature and high maneuverability, but high combat efficiency and capable of both strike and point defense missions. It differed from the trainer through a completely new forward fuselage whereby the forward cockpit area, which normally housed the trainee, was replaced by an electronics bay for avionics and onboard systems, including a fire control computer, a LINS 300 ring laser gyroscope inertial navigation system and a lightweight (145 kg) multimode, coherent, pulse-Doppler I band airborne radar. This multimode radar was developed from the Ferranti Blue Fox radar and capable of airborne interception and air-to-surface strike roles over water and land, with look-down/shoot-down and look-up modes. It had ten air-to-surface and ten air-to-ground modes for navigation and weapon aiming purposes.
A ventral fairing behind the radome carried a laser rangefinder and a forward-looking infrared (FLIR). Mid-air refueling was also possible, through a detachable (but fixed) probe. GPS navigation or modern night-flight systems were integrated, too.
Like the trainer, the Mk. 201 had a total of seven weapon hardpoints (1 ventral, four underwing and a pair of wing tip launch rails), but the more sophisticated avionics suite allowed a wider range of ordnance to be carried and deployed, which included radar-guided AAMs for BVR strokes and smart weapons and guided missiles – especially the Sea Eagle and AGM-84 “Harpoon” anti-ship missiles in the Indian Navy’s arsenal. For the maritime strike role and as a support for ASW missions, the Samudree Baaj Mk. 201 could even deploy Sting Ray homing torpedoes.
Furthermore, a pair of 30mm (1.18 in) ADEN machine cannon with 150 RPG were housed in a shallow fairing under the cockpit. The self-protection systems include a BAE SkyGuardian 200 RWR and automatic Vinten chaff/flare dispensers located above the engine exhaust.
The Samudree Baaj project was highly ambitious, so that it does not wonder that there were many delays and teething troubles. Beyond the complex avionics integration this included the maritime adaptation of the Adour engine, which eventually led to the uprated Adour Mk. 871-1N, which, as a side benefit, also offered about 10% more power.
However, in parallel, INS Vikrant also ran into delays: In July 2012, The Times of India reported that construction of Vikrant has been delayed by three years, and the ship would be ready for commissioning by 2018. Later, in November 2012, Indian English-language news channel NDTV reported that cost of the aircraft carrier had increased, and the delivery has been delayed by at least five years and is expected to be with the Indian Navy only after 2018 as against the scheduled date of delivery of 2014. Work then commenced for the next stage of construction, which included the installation of the integrated propulsion system, the superstructure, the upper decks, the cabling, sensors and weapons. Vikrant was eventually undocked on 10 June 2015 after the completion of structural work. Cabling, piping, heat and ventilation works were to be completed by 2017; sea trials would begin thereafter. In December 2019, it was reported that the engines on board the ship were switched on and in November 2020, only the basin trials of the aircraft carrier were completed.
By that time, the first Samudree Baaj aircraft had been delivered to Indian Navy 300 squadron, and even though only based at land at Hansa Air Station, flight training and military operations commenced. In the meantime, the start of Vikrant's trials had initially been scheduled to begin on 12 March 2020, but further construction delays caused that to be moved back to April. With the COVID-19 crisis, the navy explained that trials were unlikely to begin before September/October. During the Navy Day press meeting in December 2019, Navy Chief Admiral Karambir Singh said Vikrant would be fully operational before the end of 2022. The COVID-19 pandemic had already pushed that back to 2023 and further delays appeared possible.
In late 2020, the Indian Navy expected to commission Vikrant by the end of 2021. Until then, the Samudree Baaj fleet will remain land-based at INS Hansa near Goa. This not only is the INAS 300 home base, it is also the location of the Indian Navy's Shore Based Test Facility (SBTF), which is a mock-up of the 283-metre (928 ft) INS Vikramaditya (a modified Kiev-class aircraft carrier) deck built to train and certify navy pilots, primarily the the Mikoyan MiG-29K for operating from the aircraft carrier, but now also for the Samudree Baaj and for the developmental trials of the naval HAL Tejas lightweight fighter.
General characteristics:
Crew: 1
Length: 11.38 m (37 ft 4 in)
Wingspan: 9.39 m (30 ft 10 in)
Height: 4.30 m (14 ft 1 in)
Wing area: 17.66 m2 (190.1 sq ft)
Empty weight: 9,394 lb (4,261 kg)
Gross weight: 12,750 lb (5,783 kg)
Max takeoff weight: 9,101 kg (20,064 lb)
Fuel capacity: 1,360 kg (3,000 lb) internal
3,210 kg (7,080 lb) with 3 drop tanks
Powerplant:
1× Rolls-Royce Turbomeca Adour Mk. 871-1N non-afterburning turbofan, 28,89 kN (6,445 lbf) thrust
Performance:
Maximum speed: 1,037 km/h (644 mph, 560 kn) at sea level
Maximum speed: Mach 1.2 (never exceed at altitude)
Cruise speed: 796 km/h (495 mph, 430 kn) at 12,500 m (41,000 ft)
Carrier launch speed: 121 kn (139 mph; 224 km/h)
Approach speed: 125 kn (144 mph; 232 km/h)
Never exceed speed: 575 kn (662 mph, 1,065 km/h) / M1.04 design dive limit
Stall speed: 197 km/h (122 mph, 106 kn) flaps down
Range: 892 km (554 mi, 482 nmi) internal fuel only
Combat range: 617 km (383 mi, 333 nmi) with 2x AGM-84 and 2x 592 l (156 US gal; 130 imp gal)
Ferry range: 1,950 km (1,210 mi, 1,050 nmi) with 3 drop tanks
Service ceiling: 15,250 m (50,030 ft)
G-limits: +8/-3
Rate of climb: 58.466 m/s (11,509.1 ft/min)
Takeoff distance with maximum weapon load: 2,134 m (7,001 ft)
Landing distance at maximum landing weight with brake chute: 854 m (2,802 ft)
Landing distance at maximum landing weight without brake chute: 1,250 m (4,100 ft)
Armament:
2× 30 mm (1.181 in) Aden cannon with 150 rounds each
7× hardpoints (4× under-wing, 1× under-fuselage and 2 × wingtip)
for a total ordnance of 3.085 kg (6,800 lb) and a wide range of weapons
The kit and its assembly:
A subtle kitbashing project, inspired by a CG-rendition of a carrier-based (yet un-navalized) BAe Hawk 200 in Indian Navy service by fellow user SPINNERS in January 2021. I found the idea inspiring but thought that the basic concept could be taken further and into hardware form with a model. And I had a Matchbox Hawk 200 in The Stash™, as well as a McDonnell T-45 trainer from Italeri…
The plan sounds simple: take a T-45 and replace the cockpit section with the single-seat cockpit from the Hawk 200. And while the necessary cuts were easy to make, reality rears its ugly head when you try to mate parts from basically the same aircraft but from models by different manufacturers.
The challenges started with the fact that the fuselage shapes of both models differ – the Matchbox kit is more “voluminous”, and the different canopy shape called for a partial spine transplant, which turned out to be of very different shape than the T-45’s respective section! Lots of PSR…
In order to improve the pretty basic Matchbox Hawk cockpit I integrated the cockpit tub from the Italeri T-45, including the ejection seat, dashboard and its top cover.
For the totally different T-45 front wheel I had to enlarge the respective well and added a “ceiling” to it, since the strut had to be attached somewhere. The Hawk 200’s ventral tub for the cannons (which only the first prototype carried, later production aircraft did not feature them) were retained – partly because of their “whiffy“ nature, but also because making it disappear would have involved more major surgeries.
Most of the are behind the cockpit comes from the Italeri T-45, I just added a RHAWS fairing to the fin, extending it by 3mm.
A major problem became the air intakes, because the two kits differ in their construction. I wanted to use the Italeri parts, because they match the fairings on the fuselage flanks well and are better detailed than the Matchbox parts. But the boundary layer spacers between intakes and fuselage are molded into the Italeri parts, while the Matchbox kit has them molded into the fuselage. This called for major surgery and eventually worked out fine, and more PSR blended the rest of the fuselage donors around the cockpit together. A tedious process, though.
The pylons were puzzled together, including a former Matchbox EA-6B wing pylon under the fuselage, cut down and mounted in reverse and upside down! The ordnance comes from the Italeri NATO weapons set (Matra Magic and AGM-84), the ventral drop tank comes IIRC from an Eduard L-39 Albatros. Matra Magics were chosen because India never operated any Sidewinder AAM, just French or Soviet/Russian missiles like the R-60 or R-73 (unlikely on the Hawk, IMHO), and I had preferred a pair of Sea Eagle ASMs (from a Hasegawa Sea Harrier kit), but their span turned out to be too large for the Hawk’s low wings. The alternative, more slender Harpoons are plausible, though, since they are actually part of the Indian Navy’s inventory.
Painting and markings:
The Indian Navy theme was already settled, and I wanted to stay close to SPINNERS’ illustration as well as to real world Indian Navy aircraft. SPINNERS’ Hawk carried the typical Sea Harreir scheme in Extra Dark Sea Grey and White, and I found this livery to look a bit too much retro, because I’d place this what-if aircraft in the early 2020s, when the Sea Harriers had already been phased out. A “realistic” livery might have been an overall mid-grey paint scheme (like the land-based Indian Hawk 132s), but I found this to look too boring. As a compromise, I gave the Samudree Baaj a simple two-tone paint scheme, carried by a few late Indian Sea Harriers. It consists of upper surfaces in Dark Sea Grey (Humbrol 164) and undersides in Medium Sea Grey (Modelmaster 2058), with a low waterline. The Modelmaster MSG has – for my taste – a rather bluish hue and appears almost like PRU Blue, but I left it that way.
The decals were puzzled together from variosu sources. the roundels come from a MiG-21F (Begemot), the unit markings and tactical codes from a Model Alliance Sea Harrier sheet, and the stencils are a mix from the Matchbox Hawk 200 and the Italeri T-45.
The kit was sealed with matt acrylic varnish from Italeri.
The fictional HAL „Samudree Baaj“ looks simple, but combining kits of the basically same aircraft from different manufacturers reveals their differences, and they are not to be underestimated! However, I like the result of a navalized Hawk single-seater, and - also with the relatively simple and dull livery - it looks pretty convincing.
Many thanks to SPINNERS for the creative inspiration - even though my build is not a 100% "copy" of the artwork, but rather a step further into the navalisation idea with the T-45 parts.
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based on historical facts. BEWARE!
Some background:
The Indian „Samudree Baaj“ (समुद्री बाज, Sea Hawk) was a highly modified, navalized version of the British BAE Systems Hawk land-based training jet aircraft, which had been manufactured under license by Hindustan Aeronautics Limited (HAL). The first indigenously built Hawk Mk. 132 trainer was delivered in 2008 to the Indian Air Force, and the type has since then been updated with indigenous avionics into the “Hawk-I” Mk. 132 from 2020 onwards. The aircraft’s Rolls Royce Adour Mk 871 engine was also license-built by HAL, and the company had experience from a wide range of aircraft projects in the past.
The Samudree Baaj project was initiated in 2006 by the Indian Navy, as part of the long historic plan to provide the Indian Navy with a fully capable aircraft carrier. This plan had been initiated in 1989, when India announced a plan to replace its ageing British-built aircraft carriers, INS Vikrant and INS Viraat (ex-HMS Hermes), with two new 28,000-ton Air Defence Ships (ADS) that would operate the BAe Sea Harrier aircraft. The first vessel was to replace Vikrant, which was set to decommission in early 1997. Construction of the ADS was to start at the Cochin Shipyard (CSL) in 1993 after the Indian Naval Design Organisation had translated this design study into a production model. Following the 1991 economic crisis, the plans for construction of the vessels were put on hold indefinitely.
In 1999, then-Defence Minister George Fernandes revived the project and sanctioned the construction of the Project “71 ADS”. By that time, given the ageing Sea Harrier fleet, the letter of intent called for a carrier that would carry more modern jet fighters. In 2001, CSL released a graphic illustration showing a 32,000-ton STOBAR (Short Take-Off But Arrested Recovery) design with a pronounced ski jump. The aircraft carrier project finally received formal government approval in January 2003. By then, design updates called for a 37,500-ton carrier to operate the MiG-29K. India opted for a three-carrier fleet consisting of one carrier battle group stationed on each seaboard, and a third carrier held in reserve, in order to continuously protect both its flanks, to protect economic interests and mercantile traffic, and to provide humanitarian platforms in times of disasters, since a carrier can provide a self-generating supply of fresh water, medical assistance or engineering expertise to populations in need for assistance.
In August 2006, then-Chief of the Naval Staff, Admiral Arun Prakash stated that the designation for the vessel had been changed from Air Defence Ship (ADS) to Indigenous Aircraft Carrier (IAC). The euphemistic ADS had been adopted in planning stages to ward off concerns about a naval build-up. Final revisions to the design increased the displacement of the carrier from 37,500 tons to over 40,000 tons. The length of the ship also increased from 252 metres (827 ft) to 262 metres (860 ft).
It was at this time that, beyond the MiG-29K, primarily a carrier-capable trainer and also a light (and less costly) strike aircraft would be needed. With the running production of the Hawk Mk. 132 for the Indian Air Force and BAE Systems’ connection and experience to the USA and McDonnell/Boeing’s adaptation of the Hawk as the US Navy’s carrier-capable T-45 trainer, HAL was instructed to develop a suitable aircraft family on the Hawk’s basis for the new carriers.
HAL’s Samudree Baaj is a fully carrier-capable version of the British Aerospace Hawk Mk. The Hawk had not originally been designed to perform carrier operations, so that numerous modifications were required, such as the extensive strengthening of the airframe to withstand the excessive forces imposed by the stresses involved in catapult launches and high sink-rate landings, both scenarios being routine in aircraft carrier operations.
The aerodynamic changes of the aircraft, which were mutually developed by HAL and BAE Systems, included improvements to the low-speed handling characteristics and a reduction in the approach speed. Most notable amongst the changes made to the Hawk's design were extended flaps for better low-speed handling, along with the addition of spoilers on the wings to reduce lift and strakes on the fuselage which improved airflow and stabilizer efficiency.
Other, less obvious modifications included a reinforced airframe, the adoption of a more robust and widened landing gear, complete with a catapult tow bar attachment to the oleo strut of the new two-wheel nose gear design, and an arresting hook. The tail fin was extended by 1 foot (12 in, 30.5 cm) to compensate for the loss of the Hawk’s ventral stabilizing strakes. To make room for the arrester hook, the original ventral air brake was split and re-located to the flanks, similar to the USN’s T-45 trainer.
At the time of the Samudree Baaj’s design, the exact catapult arrangement and capacity on board of India’s new carriers was not clear yet – even more so, since the MiG-29K and its powerful engines might have made a catapult obsolete. Therefore, the Samudree Baaj was designed to be operable either with a ski jump ramp (in the style of the Russian Kiev class carriers, of which India had purchased one as INS Vikramaditya) or with only minimal launch support within the projected STOBAR concept, which included a relatively short-stroke steam catapult and a similarly short, undampened arrester gear.
By 2009 the basic airframe had been defined and four prototypes were built for two versions: the Mk. 101 trainer, which was basically a navalized version of the land-based Mk. 132 with almost the same mission equipment, and the Mk. 201, a single-seater. Two airframes of each type were built and the first Samudree Baaj flight took place in early 2011. The Indian government ordered 30 trainers and 15 attack aircraft, to be delivered with the first new Indian carrier, INS Vikrant, in late 2017.
The Samudree Baaj Mk. 201 was developed from the basic navalized Hawk airframe as a light multirole fighter with a small visual signature and high maneuverability, but high combat efficiency and capable of both strike and point defense missions. It differed from the trainer through a completely new forward fuselage whereby the forward cockpit area, which normally housed the trainee, was replaced by an electronics bay for avionics and onboard systems, including a fire control computer, a LINS 300 ring laser gyroscope inertial navigation system and a lightweight (145 kg) multimode, coherent, pulse-Doppler I band airborne radar. This multimode radar was developed from the Ferranti Blue Fox radar and capable of airborne interception and air-to-surface strike roles over water and land, with look-down/shoot-down and look-up modes. It had ten air-to-surface and ten air-to-ground modes for navigation and weapon aiming purposes.
A ventral fairing behind the radome carried a laser rangefinder and a forward-looking infrared (FLIR). Mid-air refueling was also possible, through a detachable (but fixed) probe. GPS navigation or modern night-flight systems were integrated, too.
Like the trainer, the Mk. 201 had a total of seven weapon hardpoints (1 ventral, four underwing and a pair of wing tip launch rails), but the more sophisticated avionics suite allowed a wider range of ordnance to be carried and deployed, which included radar-guided AAMs for BVR strokes and smart weapons and guided missiles – especially the Sea Eagle and AGM-84 “Harpoon” anti-ship missiles in the Indian Navy’s arsenal. For the maritime strike role and as a support for ASW missions, the Samudree Baaj Mk. 201 could even deploy Sting Ray homing torpedoes.
Furthermore, a pair of 30mm (1.18 in) ADEN machine cannon with 150 RPG were housed in a shallow fairing under the cockpit. The self-protection systems include a BAE SkyGuardian 200 RWR and automatic Vinten chaff/flare dispensers located above the engine exhaust.
The Samudree Baaj project was highly ambitious, so that it does not wonder that there were many delays and teething troubles. Beyond the complex avionics integration this included the maritime adaptation of the Adour engine, which eventually led to the uprated Adour Mk. 871-1N, which, as a side benefit, also offered about 10% more power.
However, in parallel, INS Vikrant also ran into delays: In July 2012, The Times of India reported that construction of Vikrant has been delayed by three years, and the ship would be ready for commissioning by 2018. Later, in November 2012, Indian English-language news channel NDTV reported that cost of the aircraft carrier had increased, and the delivery has been delayed by at least five years and is expected to be with the Indian Navy only after 2018 as against the scheduled date of delivery of 2014. Work then commenced for the next stage of construction, which included the installation of the integrated propulsion system, the superstructure, the upper decks, the cabling, sensors and weapons. Vikrant was eventually undocked on 10 June 2015 after the completion of structural work. Cabling, piping, heat and ventilation works were to be completed by 2017; sea trials would begin thereafter. In December 2019, it was reported that the engines on board the ship were switched on and in November 2020, only the basin trials of the aircraft carrier were completed.
By that time, the first Samudree Baaj aircraft had been delivered to Indian Navy 300 squadron, and even though only based at land at Hansa Air Station, flight training and military operations commenced. In the meantime, the start of Vikrant's trials had initially been scheduled to begin on 12 March 2020, but further construction delays caused that to be moved back to April. With the COVID-19 crisis, the navy explained that trials were unlikely to begin before September/October. During the Navy Day press meeting in December 2019, Navy Chief Admiral Karambir Singh said Vikrant would be fully operational before the end of 2022. The COVID-19 pandemic had already pushed that back to 2023 and further delays appeared possible.
In late 2020, the Indian Navy expected to commission Vikrant by the end of 2021. Until then, the Samudree Baaj fleet will remain land-based at INS Hansa near Goa. This not only is the INAS 300 home base, it is also the location of the Indian Navy's Shore Based Test Facility (SBTF), which is a mock-up of the 283-metre (928 ft) INS Vikramaditya (a modified Kiev-class aircraft carrier) deck built to train and certify navy pilots, primarily the the Mikoyan MiG-29K for operating from the aircraft carrier, but now also for the Samudree Baaj and for the developmental trials of the naval HAL Tejas lightweight fighter.
General characteristics:
Crew: 1
Length: 11.38 m (37 ft 4 in)
Wingspan: 9.39 m (30 ft 10 in)
Height: 4.30 m (14 ft 1 in)
Wing area: 17.66 m2 (190.1 sq ft)
Empty weight: 9,394 lb (4,261 kg)
Gross weight: 12,750 lb (5,783 kg)
Max takeoff weight: 9,101 kg (20,064 lb)
Fuel capacity: 1,360 kg (3,000 lb) internal
3,210 kg (7,080 lb) with 3 drop tanks
Powerplant:
1× Rolls-Royce Turbomeca Adour Mk. 871-1N non-afterburning turbofan, 28,89 kN (6,445 lbf) thrust
Performance:
Maximum speed: 1,037 km/h (644 mph, 560 kn) at sea level
Maximum speed: Mach 1.2 (never exceed at altitude)
Cruise speed: 796 km/h (495 mph, 430 kn) at 12,500 m (41,000 ft)
Carrier launch speed: 121 kn (139 mph; 224 km/h)
Approach speed: 125 kn (144 mph; 232 km/h)
Never exceed speed: 575 kn (662 mph, 1,065 km/h) / M1.04 design dive limit
Stall speed: 197 km/h (122 mph, 106 kn) flaps down
Range: 892 km (554 mi, 482 nmi) internal fuel only
Combat range: 617 km (383 mi, 333 nmi) with 2x AGM-84 and 2x 592 l (156 US gal; 130 imp gal)
Ferry range: 1,950 km (1,210 mi, 1,050 nmi) with 3 drop tanks
Service ceiling: 15,250 m (50,030 ft)
G-limits: +8/-3
Rate of climb: 58.466 m/s (11,509.1 ft/min)
Takeoff distance with maximum weapon load: 2,134 m (7,001 ft)
Landing distance at maximum landing weight with brake chute: 854 m (2,802 ft)
Landing distance at maximum landing weight without brake chute: 1,250 m (4,100 ft)
Armament:
2× 30 mm (1.181 in) Aden cannon with 150 rounds each
7× hardpoints (4× under-wing, 1× under-fuselage and 2 × wingtip)
for a total ordnance of 3.085 kg (6,800 lb) and a wide range of weapons
The kit and its assembly:
A subtle kitbashing project, inspired by a CG-rendition of a carrier-based (yet un-navalized) BAe Hawk 200 in Indian Navy service by fellow user SPINNERS in January 2021. I found the idea inspiring but thought that the basic concept could be taken further and into hardware form with a model. And I had a Matchbox Hawk 200 in The Stash™, as well as a McDonnell T-45 trainer from Italeri…
The plan sounds simple: take a T-45 and replace the cockpit section with the single-seat cockpit from the Hawk 200. And while the necessary cuts were easy to make, reality rears its ugly head when you try to mate parts from basically the same aircraft but from models by different manufacturers.
The challenges started with the fact that the fuselage shapes of both models differ – the Matchbox kit is more “voluminous”, and the different canopy shape called for a partial spine transplant, which turned out to be of very different shape than the T-45’s respective section! Lots of PSR…
In order to improve the pretty basic Matchbox Hawk cockpit I integrated the cockpit tub from the Italeri T-45, including the ejection seat, dashboard and its top cover.
For the totally different T-45 front wheel I had to enlarge the respective well and added a “ceiling” to it, since the strut had to be attached somewhere. The Hawk 200’s ventral tub for the cannons (which only the first prototype carried, later production aircraft did not feature them) were retained – partly because of their “whiffy“ nature, but also because making it disappear would have involved more major surgeries.
Most of the are behind the cockpit comes from the Italeri T-45, I just added a RHAWS fairing to the fin, extending it by 3mm.
A major problem became the air intakes, because the two kits differ in their construction. I wanted to use the Italeri parts, because they match the fairings on the fuselage flanks well and are better detailed than the Matchbox parts. But the boundary layer spacers between intakes and fuselage are molded into the Italeri parts, while the Matchbox kit has them molded into the fuselage. This called for major surgery and eventually worked out fine, and more PSR blended the rest of the fuselage donors around the cockpit together. A tedious process, though.
The pylons were puzzled together, including a former Matchbox EA-6B wing pylon under the fuselage, cut down and mounted in reverse and upside down! The ordnance comes from the Italeri NATO weapons set (Matra Magic and AGM-84), the ventral drop tank comes IIRC from an Eduard L-39 Albatros. Matra Magics were chosen because India never operated any Sidewinder AAM, just French or Soviet/Russian missiles like the R-60 or R-73 (unlikely on the Hawk, IMHO), and I had preferred a pair of Sea Eagle ASMs (from a Hasegawa Sea Harrier kit), but their span turned out to be too large for the Hawk’s low wings. The alternative, more slender Harpoons are plausible, though, since they are actually part of the Indian Navy’s inventory.
Painting and markings:
The Indian Navy theme was already settled, and I wanted to stay close to SPINNERS’ illustration as well as to real world Indian Navy aircraft. SPINNERS’ Hawk carried the typical Sea Harreir scheme in Extra Dark Sea Grey and White, and I found this livery to look a bit too much retro, because I’d place this what-if aircraft in the early 2020s, when the Sea Harriers had already been phased out. A “realistic” livery might have been an overall mid-grey paint scheme (like the land-based Indian Hawk 132s), but I found this to look too boring. As a compromise, I gave the Samudree Baaj a simple two-tone paint scheme, carried by a few late Indian Sea Harriers. It consists of upper surfaces in Dark Sea Grey (Humbrol 164) and undersides in Medium Sea Grey (Modelmaster 2058), with a low waterline. The Modelmaster MSG has – for my taste – a rather bluish hue and appears almost like PRU Blue, but I left it that way.
The decals were puzzled together from variosu sources. the roundels come from a MiG-21F (Begemot), the unit markings and tactical codes from a Model Alliance Sea Harrier sheet, and the stencils are a mix from the Matchbox Hawk 200 and the Italeri T-45.
The kit was sealed with matt acrylic varnish from Italeri.
The fictional HAL „Samudree Baaj“ looks simple, but combining kits of the basically same aircraft from different manufacturers reveals their differences, and they are not to be underestimated! However, I like the result of a navalized Hawk single-seater, and - also with the relatively simple and dull livery - it looks pretty convincing.
Many thanks to SPINNERS for the creative inspiration - even though my build is not a 100% "copy" of the artwork, but rather a step further into the navalisation idea with the T-45 parts.
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based on historical facts. BEWARE!
Some background:
The Indian „Samudree Baaj“ (समुद्री बाज, Sea Hawk) was a highly modified, navalized version of the British BAE Systems Hawk land-based training jet aircraft, which had been manufactured under license by Hindustan Aeronautics Limited (HAL). The first indigenously built Hawk Mk. 132 trainer was delivered in 2008 to the Indian Air Force, and the type has since then been updated with indigenous avionics into the “Hawk-I” Mk. 132 from 2020 onwards. The aircraft’s Rolls Royce Adour Mk 871 engine was also license-built by HAL, and the company had experience from a wide range of aircraft projects in the past.
The Samudree Baaj project was initiated in 2006 by the Indian Navy, as part of the long historic plan to provide the Indian Navy with a fully capable aircraft carrier. This plan had been initiated in 1989, when India announced a plan to replace its ageing British-built aircraft carriers, INS Vikrant and INS Viraat (ex-HMS Hermes), with two new 28,000-ton Air Defence Ships (ADS) that would operate the BAe Sea Harrier aircraft. The first vessel was to replace Vikrant, which was set to decommission in early 1997. Construction of the ADS was to start at the Cochin Shipyard (CSL) in 1993 after the Indian Naval Design Organisation had translated this design study into a production model. Following the 1991 economic crisis, the plans for construction of the vessels were put on hold indefinitely.
In 1999, then-Defence Minister George Fernandes revived the project and sanctioned the construction of the Project “71 ADS”. By that time, given the ageing Sea Harrier fleet, the letter of intent called for a carrier that would carry more modern jet fighters. In 2001, CSL released a graphic illustration showing a 32,000-ton STOBAR (Short Take-Off But Arrested Recovery) design with a pronounced ski jump. The aircraft carrier project finally received formal government approval in January 2003. By then, design updates called for a 37,500-ton carrier to operate the MiG-29K. India opted for a three-carrier fleet consisting of one carrier battle group stationed on each seaboard, and a third carrier held in reserve, in order to continuously protect both its flanks, to protect economic interests and mercantile traffic, and to provide humanitarian platforms in times of disasters, since a carrier can provide a self-generating supply of fresh water, medical assistance or engineering expertise to populations in need for assistance.
In August 2006, then-Chief of the Naval Staff, Admiral Arun Prakash stated that the designation for the vessel had been changed from Air Defence Ship (ADS) to Indigenous Aircraft Carrier (IAC). The euphemistic ADS had been adopted in planning stages to ward off concerns about a naval build-up. Final revisions to the design increased the displacement of the carrier from 37,500 tons to over 40,000 tons. The length of the ship also increased from 252 metres (827 ft) to 262 metres (860 ft).
It was at this time that, beyond the MiG-29K, primarily a carrier-capable trainer and also a light (and less costly) strike aircraft would be needed. With the running production of the Hawk Mk. 132 for the Indian Air Force and BAE Systems’ connection and experience to the USA and McDonnell/Boeing’s adaptation of the Hawk as the US Navy’s carrier-capable T-45 trainer, HAL was instructed to develop a suitable aircraft family on the Hawk’s basis for the new carriers.
HAL’s Samudree Baaj is a fully carrier-capable version of the British Aerospace Hawk Mk. The Hawk had not originally been designed to perform carrier operations, so that numerous modifications were required, such as the extensive strengthening of the airframe to withstand the excessive forces imposed by the stresses involved in catapult launches and high sink-rate landings, both scenarios being routine in aircraft carrier operations.
The aerodynamic changes of the aircraft, which were mutually developed by HAL and BAE Systems, included improvements to the low-speed handling characteristics and a reduction in the approach speed. Most notable amongst the changes made to the Hawk's design were extended flaps for better low-speed handling, along with the addition of spoilers on the wings to reduce lift and strakes on the fuselage which improved airflow and stabilizer efficiency.
Other, less obvious modifications included a reinforced airframe, the adoption of a more robust and widened landing gear, complete with a catapult tow bar attachment to the oleo strut of the new two-wheel nose gear design, and an arresting hook. The tail fin was extended by 1 foot (12 in, 30.5 cm) to compensate for the loss of the Hawk’s ventral stabilizing strakes. To make room for the arrester hook, the original ventral air brake was split and re-located to the flanks, similar to the USN’s T-45 trainer.
At the time of the Samudree Baaj’s design, the exact catapult arrangement and capacity on board of India’s new carriers was not clear yet – even more so, since the MiG-29K and its powerful engines might have made a catapult obsolete. Therefore, the Samudree Baaj was designed to be operable either with a ski jump ramp (in the style of the Russian Kiev class carriers, of which India had purchased one as INS Vikramaditya) or with only minimal launch support within the projected STOBAR concept, which included a relatively short-stroke steam catapult and a similarly short, undampened arrester gear.
By 2009 the basic airframe had been defined and four prototypes were built for two versions: the Mk. 101 trainer, which was basically a navalized version of the land-based Mk. 132 with almost the same mission equipment, and the Mk. 201, a single-seater. Two airframes of each type were built and the first Samudree Baaj flight took place in early 2011. The Indian government ordered 30 trainers and 15 attack aircraft, to be delivered with the first new Indian carrier, INS Vikrant, in late 2017.
The Samudree Baaj Mk. 201 was developed from the basic navalized Hawk airframe as a light multirole fighter with a small visual signature and high maneuverability, but high combat efficiency and capable of both strike and point defense missions. It differed from the trainer through a completely new forward fuselage whereby the forward cockpit area, which normally housed the trainee, was replaced by an electronics bay for avionics and onboard systems, including a fire control computer, a LINS 300 ring laser gyroscope inertial navigation system and a lightweight (145 kg) multimode, coherent, pulse-Doppler I band airborne radar. This multimode radar was developed from the Ferranti Blue Fox radar and capable of airborne interception and air-to-surface strike roles over water and land, with look-down/shoot-down and look-up modes. It had ten air-to-surface and ten air-to-ground modes for navigation and weapon aiming purposes.
A ventral fairing behind the radome carried a laser rangefinder and a forward-looking infrared (FLIR). Mid-air refueling was also possible, through a detachable (but fixed) probe. GPS navigation or modern night-flight systems were integrated, too.
Like the trainer, the Mk. 201 had a total of seven weapon hardpoints (1 ventral, four underwing and a pair of wing tip launch rails), but the more sophisticated avionics suite allowed a wider range of ordnance to be carried and deployed, which included radar-guided AAMs for BVR strokes and smart weapons and guided missiles – especially the Sea Eagle and AGM-84 “Harpoon” anti-ship missiles in the Indian Navy’s arsenal. For the maritime strike role and as a support for ASW missions, the Samudree Baaj Mk. 201 could even deploy Sting Ray homing torpedoes.
Furthermore, a pair of 30mm (1.18 in) ADEN machine cannon with 150 RPG were housed in a shallow fairing under the cockpit. The self-protection systems include a BAE SkyGuardian 200 RWR and automatic Vinten chaff/flare dispensers located above the engine exhaust.
The Samudree Baaj project was highly ambitious, so that it does not wonder that there were many delays and teething troubles. Beyond the complex avionics integration this included the maritime adaptation of the Adour engine, which eventually led to the uprated Adour Mk. 871-1N, which, as a side benefit, also offered about 10% more power.
However, in parallel, INS Vikrant also ran into delays: In July 2012, The Times of India reported that construction of Vikrant has been delayed by three years, and the ship would be ready for commissioning by 2018. Later, in November 2012, Indian English-language news channel NDTV reported that cost of the aircraft carrier had increased, and the delivery has been delayed by at least five years and is expected to be with the Indian Navy only after 2018 as against the scheduled date of delivery of 2014. Work then commenced for the next stage of construction, which included the installation of the integrated propulsion system, the superstructure, the upper decks, the cabling, sensors and weapons. Vikrant was eventually undocked on 10 June 2015 after the completion of structural work. Cabling, piping, heat and ventilation works were to be completed by 2017; sea trials would begin thereafter. In December 2019, it was reported that the engines on board the ship were switched on and in November 2020, only the basin trials of the aircraft carrier were completed.
By that time, the first Samudree Baaj aircraft had been delivered to Indian Navy 300 squadron, and even though only based at land at Hansa Air Station, flight training and military operations commenced. In the meantime, the start of Vikrant's trials had initially been scheduled to begin on 12 March 2020, but further construction delays caused that to be moved back to April. With the COVID-19 crisis, the navy explained that trials were unlikely to begin before September/October. During the Navy Day press meeting in December 2019, Navy Chief Admiral Karambir Singh said Vikrant would be fully operational before the end of 2022. The COVID-19 pandemic had already pushed that back to 2023 and further delays appeared possible.
In late 2020, the Indian Navy expected to commission Vikrant by the end of 2021. Until then, the Samudree Baaj fleet will remain land-based at INS Hansa near Goa. This not only is the INAS 300 home base, it is also the location of the Indian Navy's Shore Based Test Facility (SBTF), which is a mock-up of the 283-metre (928 ft) INS Vikramaditya (a modified Kiev-class aircraft carrier) deck built to train and certify navy pilots, primarily the the Mikoyan MiG-29K for operating from the aircraft carrier, but now also for the Samudree Baaj and for the developmental trials of the naval HAL Tejas lightweight fighter.
General characteristics:
Crew: 1
Length: 11.38 m (37 ft 4 in)
Wingspan: 9.39 m (30 ft 10 in)
Height: 4.30 m (14 ft 1 in)
Wing area: 17.66 m2 (190.1 sq ft)
Empty weight: 9,394 lb (4,261 kg)
Gross weight: 12,750 lb (5,783 kg)
Max takeoff weight: 9,101 kg (20,064 lb)
Fuel capacity: 1,360 kg (3,000 lb) internal
3,210 kg (7,080 lb) with 3 drop tanks
Powerplant:
1× Rolls-Royce Turbomeca Adour Mk. 871-1N non-afterburning turbofan, 28,89 kN (6,445 lbf) thrust
Performance:
Maximum speed: 1,037 km/h (644 mph, 560 kn) at sea level
Maximum speed: Mach 1.2 (never exceed at altitude)
Cruise speed: 796 km/h (495 mph, 430 kn) at 12,500 m (41,000 ft)
Carrier launch speed: 121 kn (139 mph; 224 km/h)
Approach speed: 125 kn (144 mph; 232 km/h)
Never exceed speed: 575 kn (662 mph, 1,065 km/h) / M1.04 design dive limit
Stall speed: 197 km/h (122 mph, 106 kn) flaps down
Range: 892 km (554 mi, 482 nmi) internal fuel only
Combat range: 617 km (383 mi, 333 nmi) with 2x AGM-84 and 2x 592 l (156 US gal; 130 imp gal)
Ferry range: 1,950 km (1,210 mi, 1,050 nmi) with 3 drop tanks
Service ceiling: 15,250 m (50,030 ft)
G-limits: +8/-3
Rate of climb: 58.466 m/s (11,509.1 ft/min)
Takeoff distance with maximum weapon load: 2,134 m (7,001 ft)
Landing distance at maximum landing weight with brake chute: 854 m (2,802 ft)
Landing distance at maximum landing weight without brake chute: 1,250 m (4,100 ft)
Armament:
2× 30 mm (1.181 in) Aden cannon with 150 rounds each
7× hardpoints (4× under-wing, 1× under-fuselage and 2 × wingtip)
for a total ordnance of 3.085 kg (6,800 lb) and a wide range of weapons
The kit and its assembly:
A subtle kitbashing project, inspired by a CG-rendition of a carrier-based (yet un-navalized) BAe Hawk 200 in Indian Navy service by fellow user SPINNERS in January 2021. I found the idea inspiring but thought that the basic concept could be taken further and into hardware form with a model. And I had a Matchbox Hawk 200 in The Stash™, as well as a McDonnell T-45 trainer from Italeri…
The plan sounds simple: take a T-45 and replace the cockpit section with the single-seat cockpit from the Hawk 200. And while the necessary cuts were easy to make, reality rears its ugly head when you try to mate parts from basically the same aircraft but from models by different manufacturers.
The challenges started with the fact that the fuselage shapes of both models differ – the Matchbox kit is more “voluminous”, and the different canopy shape called for a partial spine transplant, which turned out to be of very different shape than the T-45’s respective section! Lots of PSR…
In order to improve the pretty basic Matchbox Hawk cockpit I integrated the cockpit tub from the Italeri T-45, including the ejection seat, dashboard and its top cover.
For the totally different T-45 front wheel I had to enlarge the respective well and added a “ceiling” to it, since the strut had to be attached somewhere. The Hawk 200’s ventral tub for the cannons (which only the first prototype carried, later production aircraft did not feature them) were retained – partly because of their “whiffy“ nature, but also because making it disappear would have involved more major surgeries.
Most of the are behind the cockpit comes from the Italeri T-45, I just added a RHAWS fairing to the fin, extending it by 3mm.
A major problem became the air intakes, because the two kits differ in their construction. I wanted to use the Italeri parts, because they match the fairings on the fuselage flanks well and are better detailed than the Matchbox parts. But the boundary layer spacers between intakes and fuselage are molded into the Italeri parts, while the Matchbox kit has them molded into the fuselage. This called for major surgery and eventually worked out fine, and more PSR blended the rest of the fuselage donors around the cockpit together. A tedious process, though.
The pylons were puzzled together, including a former Matchbox EA-6B wing pylon under the fuselage, cut down and mounted in reverse and upside down! The ordnance comes from the Italeri NATO weapons set (Matra Magic and AGM-84), the ventral drop tank comes IIRC from an Eduard L-39 Albatros. Matra Magics were chosen because India never operated any Sidewinder AAM, just French or Soviet/Russian missiles like the R-60 or R-73 (unlikely on the Hawk, IMHO), and I had preferred a pair of Sea Eagle ASMs (from a Hasegawa Sea Harrier kit), but their span turned out to be too large for the Hawk’s low wings. The alternative, more slender Harpoons are plausible, though, since they are actually part of the Indian Navy’s inventory.
Painting and markings:
The Indian Navy theme was already settled, and I wanted to stay close to SPINNERS’ illustration as well as to real world Indian Navy aircraft. SPINNERS’ Hawk carried the typical Sea Harreir scheme in Extra Dark Sea Grey and White, and I found this livery to look a bit too much retro, because I’d place this what-if aircraft in the early 2020s, when the Sea Harriers had already been phased out. A “realistic” livery might have been an overall mid-grey paint scheme (like the land-based Indian Hawk 132s), but I found this to look too boring. As a compromise, I gave the Samudree Baaj a simple two-tone paint scheme, carried by a few late Indian Sea Harriers. It consists of upper surfaces in Dark Sea Grey (Humbrol 164) and undersides in Medium Sea Grey (Modelmaster 2058), with a low waterline. The Modelmaster MSG has – for my taste – a rather bluish hue and appears almost like PRU Blue, but I left it that way.
The decals were puzzled together from variosu sources. the roundels come from a MiG-21F (Begemot), the unit markings and tactical codes from a Model Alliance Sea Harrier sheet, and the stencils are a mix from the Matchbox Hawk 200 and the Italeri T-45.
The kit was sealed with matt acrylic varnish from Italeri.
The fictional HAL „Samudree Baaj“ looks simple, but combining kits of the basically same aircraft from different manufacturers reveals their differences, and they are not to be underestimated! However, I like the result of a navalized Hawk single-seater, and - also with the relatively simple and dull livery - it looks pretty convincing.
Many thanks to SPINNERS for the creative inspiration - even though my build is not a 100% "copy" of the artwork, but rather a step further into the navalisation idea with the T-45 parts.
+++ DISCLAIMER +++
Nothing you see here is real, even though the model, the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
Alexander Martin Lippisch (November 2, 1894 – February 11, 1976) was a German aeronautical engineer, a pioneer of aerodynamics who made important contributions to the understanding of flying wings, delta wings and the ground effect.
After working intially for the Zeppelin company, Reichsluftfahrtsministerium (RLM, Reich Aviation Ministry) transferred Lippisch and his team in 1939 to work at the Messerschmitt factory, in order to design a high-speed fighter aircraft around the rocket engines then under development by Hellmuth Walter. The team quickly adapted their most recent design, the DFS 194, to rocket power, the first example successfully flying in early 1940. This successfully demonstrated the technology for what would become the Messerschmitt Me 163 Komet, his most famous design.
In 1943, Lippisch transferred to Vienna’s Aeronautical Research Institute (Luftfahrtforschungsanstalt Wien, LFW), to concentrate on the problems of high-speed flight.That same year, he was awarded a doctoral degree in engineering by the University of Heidelberg. However, his research work did not stop Lippisch from designing further, mostly jet-powered and tailless fighter aircraft, e. g. for Henschel.
In early 1944, the RLM became aware of Allied jet developments and the high altitude B-29 in the Pacific TO, which was expected to appear soon over Europe, too. In response, the RLM instituted the Emergency Fighter Program, which took effect on July 3, 1944, ending production of most bomber and multi-role aircraft in favour of fighters, especially jet fighters. Additionally, they accelerated the development of experimental designs that would guarantee a performance edge over the Allied opponents, and designs that would replace the first generation of the German jet fighters, namely the Messerschmitt Me 262 and Heinkel He 162.
One of these advanced designs was the Ta 183 fighter, built by Focke Wulf and developed by Kurt Tank. The Ta 183 had a short fuselage with the air intake passing under the cockpit and proceeding to the rear where the single engine was located. The wings were swept back at 40° and were mounted in the mid-fuselage position. The pilot sat in a pressurized cockpit with a bubble canopy, which provided excellent vision. The primary armament of the aircraft consisted of four 30 mm (1.18 in) MK 108 cannons arranged around the air intake. The Ta 183 had a planned speed of about 1,000 km/h (620 mph) at 7,000 m (22,970 ft) and was powered by a 2nd generation jet engine, the Heinkel HeS 011 turbojet with 13 kN (2,700 lbf) of thrust. Several, steadily improved variants of the Ta 183 entered service from mid 1945 onwards, and the type was also the basis for more thorough derivatives - including a high altitude jet fighter proposed by Alexander Lippisch.
The resulting aircraft mated the structural basis of the proven Ta 183 with advanced aerodynamics, namely a tailless design with a much increased wing and fin area, and the machine was also powered by the new BMW 018 jet engine which delivered at this early stage 25kN (5.200 lb) of thrust and was expected to achieve more than 36 kN (7.500 lb) soon, without bigger dimensions than the widely used HeS 011 at the time.
The resulting machine, designated Li 383 in order to honor the developer, sacrificed some of the Ta 183' agility and speed for sheer altitude and climb performance, and the new wings were mostly built from non-strategic material, what increased weight considerably - the Li 383 was 1.5 times as heavy as the nimble Ta 183 fighter, but the new wing was more than twice as large.
Nevertheless, the modifications were effective and the RLM quickly accepted the radical re-design, since no better options were available on short notice. While the Ta 183 fighter was able to reach 14.000m (45,935 ft) in a zoom climb, the Li 383 could easily operate at 16.000m (52.500 ft) and even above that. However, Alexander Lippisch's original design, the Li 383A, had, despite positive wind tunnel tests, turned out to be unstable and prone to spinning. The reason was quickly found to be a lack of latitudal surfaces, and this was quickly fixed with a bigger tail fin and a characteristic gull wing that gave it the inofficial nickname for the serial Li 383B, "Sturmvogel".
When the Allied Forces eventually added the high-flying B-29 bombers to their air raids over Germany in late 1945, the Li 383 B-1 serial production variant was just ready for service. The new machines were quickly delivered to front line units, primarily fighter squadrons that defended vital centers like Berlin, Munich or the Ruhrgebiet. However, even though the Li 383 B-1's performance was sufficient, the type suffered from an inherent weakness against the well-armed Allied bombers: the range of the MK 108 cannon. While this weapon was relatively light and compact, and the four guns delivered an impressive weight of fire, a close attack against massive bomber formations was highly hazardous for the pilots. As a consequence, since bigger guns could not be mounted in the compact Ta 183 airframe, several weapon sets for filed modifications (so-called Rüstsätze) were offered that added a variety of weapons with a longer range and a bigger punch to the Li 383 B-1's arsenal, including unguided and guided air-to-air missiles.
Anyway, the Li 383's overall impact was not significant. Production numbers remained low, and all in all, only a total of 80-100 machines were completed and made operational when the hostilities ended.
General characteristics:
Crew: one
Length: 7.78 m (25 ft 5 1/2 in)
Wingspan: 12.67 m (41 ft 6 in)
Height: 3.86 m (12 ft 8 in)
Wing area: 46.8 m² (502.1 ft²)
Empty weight: 4,600 kg (10,141 lb)
Loaded weight: 6,912 kg (15,238 lb)
Max. takeoff weight: 8,100 kg (17,857 lb)
Powerplant:
1× BMW 018A turbojet, 25kN (5.200 lb)
Performance:
Maximum speed: 977 km/h (estimated) (607 mph) at 12,000 meters (39,000 ft)
Service ceiling: 16,000 m (estimated) (52,000 ft)
Rate of climb: 22 m/s (estimated) (4,330 ft/min)
Wing loading: 147.7 kg/m² (20.2 lb/ft²)
Thrust/weight: 0.34
Armament:
4× 30 mm (1.18 in) MK 108 cannons around the air intake with 75 RPG
2x underwing hardpoints for two 300l drop tanks or 2x 250 kg (550 lb) bombs;
alternatively, various weapon sets (Rüstsätze) were available, including racks for 8× (R1) or 12× (R3)
R 65 “Föhn” or for 24x R4M unguided missiles (R2), or for 2× Ruhrstahl X-4 Wire Guided AAMs (R4)
The kit and its assembly:
This fictional Luft ’46 aircraft was inspired by the question what a further developed Ta 183 could have looked like, and it was also influenced by the many tailless Lippisch designs that never left the drawing board.
From the hardware perspective, the design is more or less the salvage of the most useable parts of the PM Model Horten IX/Go 229 kit – namely the outer wing sections. The PM Model Ta 183 is only marginally “better”, and I had one of these in the stash (Revell re-boxing), too. So, why not combine two dreadful kits into something …new?
Well, that was the plan, and building was rather straightforward. In the cockpit, I added simple side consoles, a dashboard, some oxygen flasks, a different seat and a pilot figure (seatbelts simulated with tape strips) – the kit would be finished with closed canopy.
An exhaust pipe was integrated and the air intake filled with a better compressor fan (from an Airfix D.H. Venom, IIRC, fits perfectly). The inner walls of the landing gear wells (well, they are not existent) were cut away and replaced with leftover jet engine parts, so that there was some structure and depth. The landing gear was taken OOB, though, I just used slightly bigger wheels, since the “new” aircraft would have considerably more mass than the Ta 183.
The highly swept, long Ta 183 tail was cut off and replaced by a surplus Me 262 fin and tail section (Matchbox). Despite the different shape and size, and the resulting side view profile reminds strangely of the Saab 29?
The original Ta 183 wings were not mounted and their attachment points on the fuselage cut/sanded away. Instead, I used the outer wing sections from the Go 229, with clipped wing tips for a different shape.
When I held the wings to the fuselage, the whole thing looked …boring. Something was missing, hard to pinpoint. After consulting some Luft ’46 literature I adapted a trick for better stability: a gull wing shape. This was achieved through simple cuts to the wings’ upper halves. Then the wings were bent down, the gap filled with a styrene strip, and finally PSRed away. Looks very dynamic, and also much better!
Another late addition was the underwing armament. I was about to start painting when I again found that something was missing… The new wings made the aircraft pretty large, so I considered some underwing ordnance. Anyway, I did not want to disrupt the relatively clean lines with ugly bombs or drop tanks, so I installed a pair of racks with six launch tubes for R 65 “Föhn” unguided AAMs into the lower wing surfaces, in a semi-recessed position and with a deflector plate for the rocket exhausts.
Painting and markings:
As a high altitude interceptor and late war design, this one was to receive a simple and relatively light livery, even though I stuck with classic RLM tones. The Li 383 was basically painted all-over RLM 76 (Humbrol 247), onto which RLM 75 (from Modelmaster) was added, in the form of highly thinned enamel paint for a cloudy and improvised effect, applied with a big and soft brush. On top of the wings, a typical two-tone scheme was created, while on the fuselage’s upper sides only some thin mottles were added.
In order to lighten the scheme up and add a unique twist, I added further mottles to the flanks and the fin, but this time with RLM 77. This is a very light grey – originally reserved for tactical markings, but also “abused” in the field for camouflage mods, e. g. on high-flying He 177 bombers. I used Humbrol 195 (RAL 7035), again applied with a brush and highly thinned for a rather cloudy finish.
The air intake section and the intake duct were painted in aluminum, while the engine exhaust section as well as the missile racks and the areas around the gun ports were painted with Revell 99 (Iron Metallic) and Steel Metallizer.
The cockpit interior became dark grey (RLM 66) while the landing gear, the wells and the visible engine parts inside became RLM 02.
The kit was lightly weathered with a thin black ink wash and some dry-brushing.
The markings were puzzled together; due to the light basic tones of the model, the upper crosses became black, with only a very small cross on the flanks due to the lack of space, and for the wings’ undersides I used “old school” full color markings in black and white. The red color for the tactical code was basically chosen because it would be a nice contrast to the bluish-grey overall livery.
Finally the kit was sealed with matt acrylic varnish and some gun soot stains added with grinded graphite, as well as some traces of flaked paint on the wings’ leading edges and around the cockpit.
Well, the attempt to bash two mediocre (at best) kits into something else and hopefully better worked out well – the Li 383 does not look totally out of place, even though it turned out to become a bigger aircraft than expected. However, the aircraft has this certain, futuristic Luft ’46 look – probably thanks to the gull wings, which really change the overall impression from a simple kitbash to a coherent design which-could-have-been. The livery also fits well and looks better than expected. Overall, a positive surprise.
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
The Douglas F3D Skyknight (later designated F-10 Skyknight) was a United States twin-engined, mid-wing jet fighter aircraft manufactured by the Douglas Aircraft Company in El Segundo, California. The F3D was designed as a carrier-based all-weather night fighter and saw service with the United States Navy and United States Marine Corps. The mission of the F3D-2 was to search out and destroy enemy aircraft at night.
The F3D was not intended to be a typical sleek and nimble dogfighter, but as a standoff night fighter, packing a powerful radar system and a second crew member. It originated in 1945 with a US Navy requirement for a jet-powered, radar-equipped, carrier-based night fighter. The Douglas team led by Ed Heinemann designed around the bulky air intercept radar systems of the time, with side-by-side seating for the pilot and radar operator. The result was an aircraft with a wide, deep, and roomy fuselage. Instead of ejection seats, an escape tunnel was used.
As a night fighter that was not expected to be as fast as smaller daylight fighters, the expectation was to have a stable platform for its radar system and the four 20 mm cannon mounted in the lower fuselage. The F3D was, however, able to outturn a MiG-15 in an inside circle. The fire control system in the F3D-1 was the Westinghouse AN/APQ-35.
The AN/APQ-35 was advanced for the time, a combination of three different radars, each performing separate functions: an AN/APS-21 search radar, an AN/APG-26 tracking radar, both located in the nose, and an AN/APS-28 tail warning radar. The complexity of this vacuum tube-based radar system, which was produced before the advent of semiconductor electronics, required intensive maintenance to keep it operating properly.
The F3D Skyknight was never produced in great numbers but it did achieve many firsts in its role as a night fighter over Korea. While it never achieved the fame of the North American F-86 Sabre, it did down several Soviet-built MiG-15s as a night fighter over Korea with only one air-to-air loss of its own against a Chinese MiG-15 on the night of 29 May 1953.
In the years after the Korean War, the F3D was gradually replaced by more powerful aircraft with better radar systems. The F3D's career was not over though; its stability and spacious fuselage made it easily adaptable to other roles. The Skyknight played an important role in the development of the radar-guided AIM-7 Sparrow missile in the 1950s which led to further guided air-to-air missile developments.
In 1954, the F3D-2M was the first U.S. Navy jet aircraft to be fitted with an operational air-to-air missile: the Sparrow I,an all weather day/night BVR missile that used beam riding guidance for the aircrew to control the flight of the missile. Only 38 aircraft (12 F3D-1Ms, and 16 F3D-2Ms) were modified to use the missiles, though.
One of the F3D's main flaws, which it shared with many early jet aircraft, was its lack of power and performance. Douglas tried to mend this through a radical redesign: The resulting F3D-3 was the designation assigned to a swept-winged version (36° sweep at quarter chord) of the Skyknight. It was originally to be powered by the J46 turbojet, rated at 4.080 lbf for takeoff, which was under development but suffered serious trouble.
This led to the cancellation of the J46, and calculated performance of the F3D-3 with the substitute J34 was deemed insufficient. As an alternative the aircraft had to be modified to carry two larger and longer J47-GE-2 engines, which also powered the USN's FJ-2 "Fury" fighter.
This engine's thrust of 6.000 pounds-force (27 kN) at 7,950 rpm appeared sufficient for the heavy, swept-wing aircraft, and in 1954 an order for 287 production F3D-3s was issued, right time to upgrade the new type with the Sparrow I.
While the F3D-3's outline resembled that of its straight wing predecessors, a lot of structural changes had to be made to accommodate the shifted main wing spar, and the heavy radar equipment also took its toll: the gross weight climbed by more than 3 tons, and as a result much of the gained performance through the stronger engines and the swept wings was eaten away.
Maximum internal fuel load was 1.350 US gallons, plus a further 300 in underwing drop tanks. Overall wing surface remained the same, but the swept wing surfaces reduced the wing span.
In the end, thrust-to-weight ratio was only marginally improved and in fact, the F3D-3 had a lower rate of climb than the F3D-2, its top speed at height was only marginally higher, and stall speed climbed by more than 30 mph, making carrier landings more complicated.
It's equipment was also the same - the AN/APQ-35 was still fitted, but mainly because the large radar dish offered the largest detection range of any carrier-borne type of that time, and better radars that could match this performance were still under construction. Anyway, the F3D-3 was able to carry Sparrow I from the start, and this would soon be upgraded to Sparrow III (which became the AIM-7), and it showed much better flight characteristics at medium altitude.
Despite the ,many shortcomings the "new" aircraft represented an overall improvement over the F3D-2 and was accepted for service. Production of the F3D-3 started in 1955, but technology advanced quickly and a serious competitor with supersonic capability appeared with the McDonnell F3H Demon and the F4D Skyray - much more potent aircraft that the USN immediately preferred to the slow F3Ds. As a consequence, the production contract was cut down to only 102 aircraft.
But it came even worse: production of the swept wing Skyknight already ceased after 18 months and 71 completed airframes. Ironically, the F3D-3's successor, the F3H and its J40 engine, turned out to be more capricious than expected, which delayed the Demon's service introduction and seriously hampered its performance, so that the F3D-3 kept its all weather/night fighter role until 1960, and was eventually taken out of service in 1964 when the first F-4 Phantom II fighters appeared in USN service.
In 1962 all F3D versions were re-designated into F-10, the swept wing F3D-3 became the F-10C. The straight wing versions were used as trainers and also served as an electronic warfare platform into the Vietnam War as a precursor to the EA-6A Intruder and EA-6B Prowler, while the swept-wing fighters were completely retired as their performance and mission equipment had been outdated. The last F-10C flew in 1965.
General characteristics
Crew: two
Length: 49 ft (14.96 m)
Wingspan: 42 feet 5 inches (12.95 m)
Height: 16 ft 1 in (4.90 m)
Wing area: 400 ft² (37.16 m²)
Empty weight: 19.800 lb (8.989 kg)
Loaded weight: 28,843 lb (13.095 kg)
Max. takeoff weight: 34.000 lb (15.436 kg)
Powerplant:
2× General Electric J47-GE-2 turbojets, each rated at 6.000 lbf (26,7 kN) each
Performance
Maximum speed: 630 mph (1.014 km/h) at sea level, 515 mph (829 km/h) t (6,095 m)
Cruise speed: 515 mph (829 km/h) at 40,000 feet
Stall speed: 128 mph (206 km/h)
Range: 890 mi (1.433 km) with internal fuel; 1,374 mi, 2,212 km with 2× 300 gal (1.136 l) tanks
Service ceiling: 43.000 ft (13.025 m)
Rate of climb: 2,640 ft/min (13,3 m/s)
Wing loading: 53.4 lb/ft² (383 kg/m²)
Thrust/weight: 0.353
Armament
4× 20 mm Hispano-Suiza M2 cannon, 200 rpg, in the lower nose
Four underwing hardpoints inboard of the wing folding points for up to 4.000 lb (1.816 kg)
ordnance, including AIM-7 Sparrow air-to-air missiles, 11.75 in (29.8cm) Tiny Tim rockets, two
150 or 300 US gal drop tanks or bombs of up to 2.000 lb (900 kg) caliber, plus four hardpoints
under each outer wing for a total of eight 5" HVARs or eight pods with six 2 3/4" FFARs each
The kit and its assembly:
Another project which had been on the list for some years now but finally entered the hardware stage. The F3D itself is already a more or less forgotten aircraft, and there are only a few kits available - there has been a vacu kit, the Matchbox offering and lately kits in 1:72 and 1:48 by Sword.
The swept wing F3D-3 remained on the drawing board, but would have been a very attractive evolution of the tubby Skyknight. In fact, the swept surfaces resemble those of the A3D/B-66 a Iot, and this was the spark that started the attempt to build this aircraft as a model through a kitbash.
This model is basically the Matchbox F3D coupled with wings from an Italeri B-66, even though, being much bigger, these had to be modified.
The whole new tail is based on B-66 material. The fin's chord was shortened, though, and a new leading edge (with its beautiful curvature) had to be sculpted from 2C putty. The vertical stabilizers also come from the B-66, its span was adjusted to the Skyknight's and a new root intersection was created from styrene and putty, so that a cross-shaped tail could be realized.
The tail radar dish was retained, even though sketches show the F3D-3 without it.
The wings were take 1:1 from the B-66 and match well. They just had to be shortened, I set the cut at maybe 5mm outwards of the engine pods' attachment points. They needed some re-engraving for the inner flaps, as these would touch the F3D-3's engines when lowered, but shape, depth and size are very good for the conversion.
On the fuselage, the wings' original "attachment bays" had to be filled, and the new wings needed a new position much further forward, directly behind the cockpit, in order to keep the CoG.
One big issue would be the main landing gear. On the straight wing aircraft it retracts outwards, and I kept this arrangement. No detail of the exact landing gear well position was available to me, so I used the Matchbox parts as stencils and placed the new wells as much aft as possible, cutting out new openings from the B-66 wings.
The OOB landing gear was retained, but I added some structure to the landing gear wells with plastic blister material - not to be realistic, just for the effect. A lot of lead was added in the kit's nose section, making sure it actually stands on the front wheel.
The Matchbox Skyknight basically offers no real problems, even though the air intake design leaves, by tendency some ugly seams and even gaps. I slightly pimped the cockpit with headrests, additional gauges and a gunsight, as well as two (half) pilot figures. I did not plan to present the opened cockpit and the bulbous windows do not allow a clear view onto the inside anyway, so this job was only basically done. In fact, the pilots don't have a lower body at all...
Ordnance comprises of four Sparrow III - the Sparrow I with its pointed nose could have been an option, too, but I think at the time of 1960 the early version was already phased out?
Painting and markings:
This was supposed to become a typical USN service aircraft of the 60ies, so a grey/white livery was predetermined. I had built an EF-10B many years ago from the Matchbox kit, and the grey/white guise suits the Whale well - and here it would look even better, with the new, elegant wings.
For easy painting I used semi matt white from the rattle can on the lower sides (painting the landing gear at the same time!), and then added FS 36440 (Light Gull Grey, Humbrol 129) with a brush to the upper sides. The radar nose became semi matt black (with some weathering), while the RHAWS dish was kept in tan (Humbrol 71).
In order to emphasize the landing gear and the respective wells I added a red rim to the covers.
The cockpit interior was painted in dark grey - another factor which made adding too many details there futile, too...
The aircraft's individual marking were to be authentic, and not flamboyant. In the mid 50ies the USN machines were not as colorful as in the Vietnam War era, that just started towards the 60ies.
The markings I used come primarily from an Emhar F3H Demon, which features no less than four(!) markings, all with different colors. I settled for a machine of VF-61 "Jolly Rogers", which operated from the USS Saratoga primarily in the Mediterranean from 1958 on - and shortly thereafter the unit was disbanded.
I took some of the Demon markings and modified them with very similar but somewhat more discrete markings from VMF-323, which flew FJ-4 at the time - both squadrons marked their aircraft with yellow diamonds on black background, and I had some leftover decals from a respective Xtradecal sheet in the stash.
IMHO a good result with the B-66 donation parts, even though I am not totally happy with the fin - it could have been more slender at the top, and with a longer, more elegant spine fillet, but for that the B-66 fin was just too thick. Anyway, I am not certain if anyone has ever built this aircraft? I would not call the F3D-3 elegant or beautiful, but the swept wings underline the fuselage's almost perfect teardrop shape, and the thing reminds a lot of the later Grumman A-6 Intruder?
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based on historical facts. BEWARE!
Some background:
After the Second World War, France’s armored force consisted, almost entirely, of US-built vehicles, such as the M4 Sherman, M26 Pershing, and M24 Chaffee (among others). France received these vehicles as aid as part of the Marshall Plan and the Mutual Defense Assistance Act (MDAA). These aid pacts also financed the reconstruction of France’s economy and armed forces from 1948 until the late 1950s. In April 1949, the North Atlantic Treaty was signed, and NATO was born, resulting in the United States extending the MDAA. This resulted in France receiving newer vehicles, such as the M47 Patton II tank.
In total, France would operate around 1,250 M24s which were identical to their US counterparts. It was a small tank at 5.45 meters (16 ft 4 in) long, 2.84 meters (9ft 4in) wide, and 2.61 meters (9ft 3in) tall. It weighed 16.6 tonnes (18.37 tons), utilized a torsion bar suspension, and was armed with a 75 mm gun. The tank had a 5-men crew: Commander, Gunner, Loader, Driver, Bow Gunner. The ‘Chaffee’ was named after WWI US Army General, Adna R. Chaffee Jr.
In 1956, the French Army and the Direction des Etudes et Fabrications d’Armements (Directorate of Studies and Manufacture of Armaments, DEFA, an institution within the French Military) were looking into affordable methods of modernizing their fleet of aging M24 Chaffee light tanks, which had been operated since WWII. One method was to somehow combine France’s new domestic light tank, the AMX-13, with the M24.
Initially, this led to the mating of the AMX-13’s FL-10 oscillating turret to the hull of the Chaffee, as the most logical step to improve the M24s. While cheap and feasible, this configuration never went further than trials. This was largely due to a perceived safety issue with the High-Explosive (HE) rounds fired by the CN 75-50 cannon. Inside the FL-10 turret, the CN 75-50 gun was fed via an automatic loading system, which was reloaded externally. If an alternate shell-type needed to be fired, HE, for example, it had to be loaded into the breach manually by the Commander. This was a tricky task in the tight confines of the turret on the standard AMX, made worse by the notoriously sensitive fuze of the HE rounds. This process would be even more dangerous on the smaller hull of the Chaffee. As a result, the inverse of this mounting was decided upon, mounting the Chaffee’s turret on the AMX-13’s hull.
The officially designated AMX-US was a result of this, even though there were many other unofficial names, including ‘AMX-13 Chaffee’ – as it was known by troops – or ‘AMX-13 Avec Tourelle Chaffee (with Chaffee Turret)’. By 1957, work on the inverse of mounting the Chaffee turret to the AMX hull had begun, what was regarded as a safer and easier alternative, and it was also a convenient way of recycling useful Chaffee turrets by separating them from their worn hulls. It also created a vehicle lighter than the regular Chaffee, meaning it was easier to transport.
The M24 turrets went through very little modification for their installation, retaining all the same main features. The only modification necessary was the introduction of an adapter or ‘collar’ to the AMX hull’s turret ring. This was needed as the Chaffee turret had quite a deep basket. The collar granted the basket clearance from the hull floor for uninterrupted, full 360-degree rotation.
The Chaffee turret was a standard design with a typical 3-man crew of the time: Gunner, Loader, and Commander. The Commander sat at the left rear of the turret under a vision-cupola, the gunner sat in front of him. The loader was located at the right-rear of the turret under his own hatch. Armor on the turret was 25 mm (.98 in) thick on all sides, with the gun mantlet being 38 mm (1.49 in) thick.
The AMX-US was operated by a four-man crew, as opposed to the three-man crew of the standard Mle 51, due to the three-man turret of the Chaffee. Armament consisted of the 75 mm Lightweight Tank Gun M6 which had a concentric recoil system (this was a hollow tube around the barrel, a space-saving alternative to traditional recoil cylinders). Variants of this gun were also used on the B-25H Mitchell Bomber, and the T33 Flame Thrower Tank prototype. The shell velocity was 619 m/s (2,031 ft/s) and had a maximum penetration of 109 mm. The elevation range of the gun was around -10 to +13 degrees. Secondary weapons were also retained. This included the coaxial .30 Cal (7.62 mm) Browning M1919 Machine Gun, and the .50 Caliber (12.7 mm) M2 Browning Heavy Machine gun which was mounted on the rear of the turret roof.
Apart from the adaptor or ‘collar’, the AMX hull went through no alterations. It retained the same dimensions, and forward-mounted engine and transmission. The tank was powered by a SOFAM Model 8Gxb 8-cylinder, water-cooled petrol engine developing 250 hp, propelling the tank to a top speed of around 60 km/h (37 mph). The vehicle ran on a torsion bar suspension with five road-wheels, two return rollers, a rear-mounted idler, and a forward-mounted drive-sprocket. The driver was positioned at the front left of the hull, behind the transmission and next to the engine.
Trials with what would be designated the ‘AMX-US’ were undertaken between December 1959 and January 1960. The vehicle was well received, with an order for 150 conversions being placed by the French military in March 1960. Conversion work was carried out at a plant in Gien, North-Central France.
The AMX-US saw brief service in the War in Algeria – otherwise known as the Algerian War of Independence or Algerian Revolution. One known operator was the 9e Régiment de Hussards (9th Hussar Regiment) based in Oran. They served well, but a few were lost in combat, but there is no evidence to suggest they served in any other location with the French military, such as in France or West Germany based regiments.
After the conflict in Algeria, the vehicles were returned to France, but they did not last long in active service after this. Many vehicles were being repurposed into driver trainers. For this, the vehicles were disarmed, with the 75 mm gun and mantlet removed from the turret face and a large plexiglass windscreen was installed in its place.
About fifty surplus AMX-US were sold as scout tanks to Israel, because the AMX-13, which had been procured and operated by the IDF since 1956 in great numbers, was used as a battle tank, so that no IDF reconnaissance unit used the AMX 13. The AMX-US was a perfect and cheap alternative to fill this operational gap, and the vehicles, delivered in 1963, took actively part in the 1967 Six-Day-War.
During these battles, the IDF soon realized that the AMX-13 tank in general was too lightly armored and lacked firepower, and this was even more true for the AMX-US with its vintage WWII gun. Losses were heavy at places like Rafah Junction and Jiradi Pass with many tanks destroyed by heavier Arab-fielded Soviet armor, such as T-55 MBTs and IS-3 heavy tanks. After that, both the AMX-13 and the AMX-US were gradually phased out by the IDF, either sold to other nations (e. g. Thailand), broken up for spares or preserved and stored in depots.
In 1975, a handful of these mothballed AMX-US were, together with other outdated Six-Day-War M50 Sherman veterans, re-activated and handed over to the South Lebanese Army (SLA). The SLA was a Christian militia during the Lebanese Civil War, opposing Muslim militias supported by Syria. The SLA received a total of 15 AMX-US, plus 35 M50s, and all these tanks were painted in a characteristic light blue-grey color. The SLA kept these tanks operational and active for a surprisingly long period, the last confirmed appearance of an SLA AMX-US in battle was in 1988. Even after the retirement of the last operational specimen, the SLA still used the AMX-US for training and security duties.
In 2000, nearly ten years after the end of the civil war, the SLA disbanded, and the surviving former IDF tanks were returned to Israel to prevent them from falling into the wrong hands – spelling the end to the AMX-US long career, of which four were returned and subsequently scrapped.
Specifications:
Crew: Four (Commander, Loader, Gunner, Driver)
Weight: 15 tons
Length: 4.88 m (16 ft) overall
Width: 2.51 m (8 ft 2 in)
Height: 2.30 m (7 ft 5 in)
Suspension: Torsion arms; Tracked chassis, 5 roadwheels, drive sprocket front, idler rear,
3.00 m length, 0.35 width, 2.16 m track
Ground clearance: 0.37 m (1 ft 2½ in)
Fording depth: 2 ft (0.6 m) unprepared, 6.9 ft (2.1 m) with snorkel
Grade: 60%
Side slope: 60%
Trench crossing: 1.6 m (5 ft 3 in)
Vertical wall climb: 0.65 m (2 ft 1½ ft)
Fuel capacity: 480 l (127 gal)
Engine:
1× water-cooled Renault SOFAM Model 8Gxb 8-cylinder gasoline with 250 hp
Transmission:
Hydramatic automatic transmission; 8 speeds forward, 4 reverse
Armor:
Hull: 10 - 40 mm (1.57 in)
Turret: max. 38 mm (1.49 in)
Performance:
Speed: 60 km/h (40 mph) maximum, road
Operational range: 350 km (217 mi) on streets with internal fuel only
Power/weight: 17 hp/t
Armament:
1× 75 mm Lightweight Tank Gun M6 in Mount M64 with 48 rounds
1× co-axial 0.30 Cal. (7.62 mm) Browning M1919 machine gun, 2.200 rounds
1× 0.50 Caliber (12.7 mm) M2 Browning anti-aircraft heavy machine gun, 440 rounds
The kit and its assembly:
This fictional tank model is the result of recycling: After a T-34 conversion, which used an AMX-13 turret, I was left with the chassis of a 1:72 Heller kit. The latter is a rather simple and primitive affair, with many wrong details and a very weak running gear. From another, even older conversion project I also had an almost complete turret from a Hasegawa M24 Chaffee left over. When I stumbled in literature over the French AMX-US hybrid I decided to use these leftover bits to create one!
The AMX-13 chassis was taken OOB, because I did want to invest too much energy into this build, despite its many flaws. Its running gear is rubbish, the vinyl tracks featureless, and overall the detail level is rather soft. From a distance it looks like an AMX-13, but any closer inspection reveals the model's simplicity and toy-likeness. The Chaffee turret was also built with the original parts – but I had to replace the gun barrel and find a replacement for the gunner’s hatch.
Nevertheless, some scratch work had to be done. The biggest challenge was the AMX-US’ characteristic turret adapter ring, which markedly raises the M24 turret above the AMX-13 hull. My solution became a manually bent a piece of soft styrene profile - it’s not perfectly circular, but that’s not obvious when the turret is in place, and it looks the part. Furthermore, some small bits were added to hide flaws and distract. These include vertical bars in the exhaust opening, shallow storage boxes on the fenders (hiding the wacky distance ring) and tarpaulin/cammo net packs (created from paper tissue and nylon stockings drenched with white glue). The commander cupola’s hatch was left open and a figure (an ESCI German WWII tank commander) added, to make the model appear livelier. Since the M24’s AA machine gun had been gone, I had to replace it with one from an ESCI Merkava, its mount was moved in front of the cupola.
Painting and markings:
Initially, I just had the French army as potential operator for the AMX-US but found that rather boring due to the very limited livery options: any French tank from the era would have carried a dark olive-green livery, even those operated in North Africa! Some French M24s had been operated in South-East Asia in a sand/green/brown/green jungle scheme, but the time frame would not match well. So, I checked other AMX-13 operators and took liking in an IDF vehicle. However, while looking for potential liveries I came upon the SLA. The AMX-US, had it been handed over to the IDF, could have been among these donor tanks, and their unique (if not spectacular) light blue livery made them outstanding. I am not certain whether the blue tone was intended as serious camouflage or just as an IFF measure? However, among typical light rocks and mountains of the Lebenon and in dusty/hazy air, the bluish tone actually works quite fine, better than expected.
While a uniform livery is not complex, finding a suitable tone for the model took a while. Real life color pictures (of dubious quality) show a wide range of light blue and/or grey tones, ranging from a bright sky blue over pale grey (like FS 36375) to a medium bluish grey (FS 35237), frequently with severe signs of weathering/sun-bleaching which makes some tanks appear almost white. Some M50s also had olive drab or dark grey patches or patterns added on top as additional camouflage.
After testing several options I chose RLM78 (Modelmaster 2088) as basic tone. Odd choice, but it turned out to be light enough, is a rather blue tone (with a slight hint of green), but still dull enough to look like a military tone. An overall washing with a mix of grey, black and red brown followed, and then the model received a thorough, overall dry brushing treatment with various shades of light blue grey, including Modelmaster RLM76, FS 36320 and Revell 75, for a worn and bleached appearance.
The markings had to be completely improvised, though, and were created with Corel Draw on an ink jet printer and with white and clear decal paper. They include the SLA’s cedar tree emblem and the Arabic tactical codes. The white “X” markings were created with generic decal stripes.
After the model had been sealed with matt acrylic varnish, sand and dust residues were created with watercolors, and some beige mineral pigments were dusted into the running gear and over the upper surfaces.
A quick build and a good use of leftover parts from other projects, melded into a plausible result. The SLA livery adds a weird twist to this model, even though it is – in the end – just a mix of real-world elements: the AMX-US existed, and the SLA operated light blue tanks! Life is sometimes stranger than fiction.
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based on historical facts. BEWARE!
Some background:
In the first years of the war, the Wehrmacht had only little interest in developing self-propelled anti-aircraft guns, but as the Allies developed air superiority and dedicated attack aircraft threatened the ground troops from above, the need for more mobile and better-armed self-propelled anti-aircraft guns increased. As a stopgap solution the Wehrmacht initially adapted a variety of wheeled, half-track and tracked vehicles to serve as mobile forward air defense positions. Their tasks were to protect armor and infantry units in the field, as well as to protect temporary forward area positions such as mobile headquarters and logistic points.
These vehicles were only lightly armored, if at all, and rather mobilized the anti-aircraft weapons. As Allied fighter bombers and other ground attack aircraft moved from machine gun armament and bombing to air-to-ground rockets and large-caliber cannons, the air defense positions were even more vulnerable. The answer was to adapt a tank chassis with a specialized turret that would protect the gun crews while they fired upon approaching Allied aircraft. Furthermore, the vehicle would have the same mobility as the battle tanks it protected.
Initial German AA-tank designs were the ‘Möbelwagen’ and the ‘Wirbelwind’, both conversions of refurbished Panzer IV combat tank chassis with open platforms or turrets with four 20mm cannon. Alternatively, a single 37mm AA gun was mounted, too – but all these vehicles were just a compromise and suffered from light armor, a high silhouette and lack of crew protection.
Further developments of more sophisticated anti-aircraft tank designs started in late 1943 and led into different directions. One development line was the ‘Kugelblitz’, another Panzer IV variant, but this time the ball-shaped turret, armed with very effective 30 mm MK 103 cannon, was fully integrated into the hull, resulting in a low silhouette and a protected crew. However, the ‘Kugelblitz’ only featured two of these guns and the tilting turret was very cramped and complicated. Venting and ammunition feed problems led to serious delays and a prolonged development stage.
The ‘Coelian’ family of bigger turrets with various weapon options for the Panzer V (the ‘Panther’) was another direction, especially as a response against the armored Il-2 attack aircraft at the Eastern front and against flying targets at medium altitude. Targets at high altitude, esp. Allied bombers, were to be countered with the very effective 8.8 cm Flak, and there were also several attempts to mount this weapon onto a fully armored hull.
The primary weapon for a new low/medium altitude anti-aircraft tank was to become the heavy automatic 55 mm MK 214. Like the 30 mm MK 103 it was a former aircraft weapon, belt-fed and adapted to continuous ground use. However, in early 1944, teething troubles with the ‘Kugelblitz’ suggested that a completely enclosed turret with one or (even better) two of these new weapons, mounted on a ‘Panther’ or the new E-50/75 tank chassis, would need considerable development time. Operational vehicles were not expected to enter service before mid-1945. In order to fill this operational gap, a more effective solution than the Panzer IV AA conversions, with more range and firepower than anything else currently in service, was direly needed.
This situation led to yet another hasty stopgap solution, the so-called ‘Ostwind II’ weapon system, which consisted primarily of a new turret, mated with a standard medium battle tank chassis. It was developed in a hurry in the course of 1944 and already introduced towards the end of the same year. The ‘Ostwind II’ was a compromise in the worst sense: even though it used two 37 mm FlaK 43 guns in a new twin mount and offered better firepower than any former German AA tank, it also retained many weaknesses from its predecessors: an open turret with only light armor and a high silhouette. But due to the lack of time and resources, the ‘Ostwind II’ was the best thing that could be realized on short notice, and with the perspective of more effective solutions within one year’s time it was rushed into production.
The ‘Ostwind II’ system was an open, roughly diamond-shaped, octagonal turret, very similar in design to the Panzer IV-based ‘Wirbelwind’ and ‘Ostwind’ (which was re-designated ‘Ostwind I’). As a novelty, in order to relieve the crew from work overload, traverse and elevation of the turret was hydraulic, allowing a full elevation (-4° to +90° was possible) in just over four seconds and a full 360° traverse in 15 seconds. This had become necessary because the new turret was bigger and heaver, both the weapons and their crews required more space, so that the Ostwind II complex could not be mounted onto the Panzer IV chassis anymore and movement by hand was just a fallback option.
In order to provide the ‘Ostwind II’ with a sufficiently large chassis, it was based on the SdKfz. 171 Panzer V medium battle tank, the ‘Panther’, exploiting its bigger turret ring, armor level and performance. The Panther chassis had, by late 1944, become available for conversions in considerable numbers through damaged and/or recovered combat tanks, and updated details like new turrets or simplified road wheels were gradually introduced into production and during refurbishments. Mounting the ‘Ostwind II’ turret on the Panzer VI (Tiger) battle tank chassis had been theoretically possible, too, but it never happened, because the Tiger lacked agility and its protection level and fuel consumption were considered impractical for an SPAAG that would typically protect battle tank groups.
The ‘Ostwind II’ turret was built around a motorized mount for the automatic 3.7 cm FlaK 43 twin guns. These proven weapons were very effective against aircraft flying at altitudes up to 4,200 m, but they also had devastating effect against ground targets. The FlaK 43’s armor penetration was considerable when using dedicated ammunition: at 100 m distance it could penetrate 36 mm of a 60°-sloped armor, and at 800 m distance correspondingly 24 mm. The FlaK 43’s theoretical maximum rate of fire was 250 shots/minute, but it was practically kept at ~120 rpm in order to save ammunition and prevent wear of the barrels. The resulting weight of fire was 76.8 kg (169 lb) per minute, but this was only theoretical, too, because the FlaK 43 could only be fed manually by 6-round clips – effectively, only single shots or short bursts could be fired, but a trained crew could maintain fire through using alternating gun use. A more practical belt feed was at the time of the Ostwind II's creation not available yet, even though such a mechanism was already under development for the fully enclosed Coelian turret, which could also take the FlaK 43 twin guns, but the armament was separated from the turret crew.
The new vehicle received the official designation ‘Sd.Kfz. 171/2 Flakpanzer V’, even though ‘Ostwind II’ was more common. When production actually began and how many were built is unclear. The conversion of Panther hulls could have started in late-1944 or early-1945, with sources disagreeing. The exact number of produced vehicles is difficult to determine, either. Beside the prototype, the number of produced vehicles goes from as little as 6 to over 40. The first completed Ostwind II SPAAGs were exclusively delivered to Eastern front units and reached them in spring 1945, where they were immediately thrown into action.
All Flakpanzer vehicles at that time were allocated to special anti-aircraft tank platoons (so-called Panzer Flak Züge). These were used primarily to equip Panzer Divisions, and in some cases given to special units. By the end of March 1945, there were plans to create mixed platoons equipped with the Ostwinds and other Flakpanzers. Depending on the source, they were either to be used in combination with six Kugelblitz, six Ostwinds and four Wirbelwinds or with eight Ostwinds and three Sd.Kfz. 7/1 half-tracks. Due to the war late stage and the low number of anti-aircraft tanks of all types built, this reorganization was never truly implemented, so that most vehicles were simply directly attached to combat units, primarily to the commanding staff.
The Ostwind II armament proved to be very effective, but the open turret (nicknamed ‘Keksdose’ = cookie tin) left the crews vulnerable. The crew conditions esp. during wintertime were abominable, and since aiming had to rely on vision the system's efficacy was limited, esp. against low-flying targets. The situation was slightly improved when the new mobile ‘Medusa’ and ‘Basilisk’ surveillance and target acquisition systems were introduced. These combined radar and powerful visual systems and guided the FlaK crews towards incoming potential targets, what markedly improved the FlaKs' first shot hit probability. However, the radar systems rarely functioned properly, the coordination of multiple SPAAGs in the heat of a low-level air attack was a challenging task, and - to make matters worse - the new mobile radar systems were even more rare than the new SPAAGs themselves.
All Ostwind II tanks were built from recovered ‘Panther’ battle tanks of various versions. The new Panther-based SPAAGs gradually replaced most of the outdated Panzer IV AA variants as well as the Ostwind I. Their production immediately stopped in the course of 1945 when the more sophisticated 'Coelian' family of anti-aircraft tanks with fully enclosed turrets became available. This system was based on Panzer V hulls, too, and it was soon followed by the first E-50 SPAAGs with the new, powerful twin-55 mm gun.
Specifications:
Crew: Six (commander, gunner, 2× loader, driver, radio-operator/hull machine gunner)
Weight: 43.8 tonnes (43.1 long tons; 48.3 short tons)
Length (hull only): 6.87 m (22 ft 6 in)
Width: 3.42 m (11 ft 3 in)
Height: 3.53 m (11 ft 6 3/4 in)
Suspension: Double torsion bar, interleaved road wheels
Fuel capacity: 720 litres (160 imp gal; 190 US gal)
Armor:
15–80 mm (0.6 – 3.15 in)
Performance:
Maximum road speed: 46 km/h (29 mph)
Operational range: 250 km (160 mi)
Power/weight: 15.39 PS (11.5 kW)/tonne (13.77 hp/ton)
Engine:
Maybach HL230 P30 V-12 petrol engine with 700 PS (690 hp, 515 kW)
ZF AK 7-200 gear; 7 forward 1 reverse
Armament:
2× 37 mm (1.46 in) FlaK 43 cannon in twin mount with 1.200 rounds
1× 7.92 mm MG 34 machine gun in the front glacis plate with 2.500 rounds
The kit and its assembly:
This was a spontaneous build, more or less the recycling of leftover parts from a 1:72 Revell Ostwind tank on a Panzer III chassis that I had actually bought primarily for the chassis (it became a fictional Aufklärungspanzer III). When I looked at the leftover turret, I wondered about a beefed-up/bigger version with two 37 mm guns. Such an 'Ostwind II' was actually on the German drawing boards, but never realized - but what-if modelling can certainly change that. However, such a heavy weapon would have to be mounted on a bigger/heavier chassis, so the natural choice became the Panzer V, the Panther medium battle tank. This way, my ‘Ostwind II’ interpretation was born.
The hull for this fictional AA tank is a Hasegawa ‘Panther Ausf. G’ kit, which stems from 1973 and clearly shows its age, at least from today’s point of view. While everything fits well, the details are rather simple, if not crude (e. g. the gratings on the engine deck or the cupola on the turret). However, only the lower hull and the original wheels were used since I wanted to portray a revamped former standard battle tank.
The turret was a more complicated affair. It had to be completely re-constructed, to accept the enlarged twin gun and to fit onto the Panther hull. The first step was the assembly of the twin gun mount, using parts from the original Ostwind kit and additional parts from a second one. In order to save space and not to make thing uber-complicated I added the second weapon to the right side of the original gun and changed some accessories.
This, together with the distance between the barrels, gave the benchmark for the turret's reconstruction. Since the weapon had not become longer, I decided to keep things as simple as possible and just widen the open turret - I simply took the OOB Ostwind hexagonal turret (which consists of an upper and lower half), cut it up vertically and glued them onto the Panther turret's OOB base, shifting the sides just as far to the outside that the twin gun barrels would fit between them - a distance of ~0.4 inch (1 cm). At the rear the gap was simply closed with styrene sheet, while the front used shield parts from the Revell Ostwind kit that come from a ground mount for the FlaK 43. Two parts from this shield were glued together and inserted into the front gap. While this is certainly not as elegant as e. g. the Wirbelwind turret, I think that this solution was easier to integrate.
Massive PSR was necessary to blend the turret walls with the Panther turret base, and as a late modification the opening for the sight had to be moved, too. To the left of the weapons, I also added a raised protective shield for the commander.
Inside of the turret, details from the Ostwind kit(s), e. g. crew seats and ammunition clips, were recycled, too.
Painting and markings:
Since the Ostwind II would be based on a repaired/modified former Panzer V medium battle tank, I settled upon a relatively simple livery. The kit received a uniform finish in Dunkelgelb (RAL 7028), with a network of greenish-grey thin stripes added on top, to break up the tank's outlines and reminiscent of the British ‘Malta’ scheme, but less elaborate. The model and its parts were initially primed with matt sand brown from the rattle can (more reddish than RAL 7028) and then received an overall treatment with thinned RAL 7028 from Modelmaster, for an uneven, dirty and worn look. The stripes were created with thinned Tamiya XF-65 (Field Grey).
Once dry, the whole surface received a dark brown wash, details were emphasized with dry-brushing in light grey and beige. Decals were puzzled together from various German tank sheets, and the kit finally sealed with matt acrylic varnish.
The black vinyl tracks were also painted/weathered, with a wet-in-wet mix of black, grey, iron and red brown (all acrylics). Once mounted into place, mud and dust were simulated around the running gear and the lower hull with a greyish-brown mix of artist mineral pigments.
A bit of recycling and less exotic than one would expect, but it’s still a whiffy tank model that fits well into the historic gap between the realized Panzer IV AA tanks and the unrealized E-50/75 projects. Quite subtle! Creating the enlarged turret was the biggest challenge, even, even more so because it was/is an open structure and the interior can be readily seen. But the new/bigger gun fits well into it, and it even remained movable!
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
The Republic P-47 Thunderbolt was one of the largest and heaviest fighter aircraft in history to be powered by a single piston engine. It was heavily armed with eight .50-caliber machine guns, four per wing. When fully loaded, the P-47 weighed up to eight tons, and in the fighter-bomber ground-attack roles could carry five-inch rockets or a significant bomb load of 2,500 pounds; it could carry over half the payload of the B-17 bomber on long-range missions (although the B-17 had a far greater range).
The P-47, originally based on the powerful Pratt & Whitney R-2800 Double Wasp engine, was to be very effective as a short-to-medium range escort fighter in high-altitude air-to-air combat and, when unleashed as a fighter-bomber, proved especially adept at ground attack in both the World War II European and Pacific Theaters.
The P-47 was one of the main United States Army Air Forces (USAAF) fighters of World War II, and served with other Allied air forces, notably those of France, Britain, and Russia. Mexican and Brazilian squadrons fighting alongside the U.S. were equipped with the P-47.
In 1943, two P-47D-15-RE airframes (serials 42-23297/23298) were selected for testing with the new experimental 2300 hp Chrysler XIV-2220-1 sixteen-cylinder inverted Vee liquid-cooled engine. These aircraft were re-designated XP-47H. The liquid-cooled Chrysler engine with its large under-fuselage radiator radically changed the appearance of the Thunderbolt, and increased overall length to 39 feet 2 inches. With the increased power and improved streamlining, a maximum speed of 490 mph was anticipated.
The two P-47D-15-RE airframes were converted until early 1944 and test flights began on July 26, 1945. During flight trails, one of the XP-47Hs actually attained a speed of 490 mph in level flight, and the new aircraft was primarily intended as a fast interceptor for the European theater, where especially Great Britain was endangered by the fast V1 missiles, and initial reports about German jet fighters and reconnaissance aircraft that were hard to counter with current piston-engine types, stirred the need for this fast aircraft.
Production P-47Hs received several amendments that had already been introduced with the late D types, e. g. the lowered back and a bubble canopy that offered excellent view. The P-47H also received the new wing from the P-47N, recognizable by its characteristic square wing tips which allowed better roll manoeuvers. Not visible at first glance were the integral wing tanks, which enhanced the internal fuel load to 4.792,3 liters, resulting in a range of 3.500 km (2.175 ml), so that the P-47H was also suited for long range bomber escorts. Air brakes were added to the wing's lower surfaces, too, to allow braking after a dive onto its prey.
Furthermore, serial production machines received an uprated, more reliable Chrysler XIV-2220-2 engine, which had an output of 2.450 hp.
The P-47H was put into limited production with 130 built, sufficient for one group. However, the type suffered serious teething problems in the field due to the highly tuned engine. Engines were unable to reach operating temperatures and power settings and frequently failed in early flights from a variety of causes: ignition harnesses cracked at high altitudes, severing electrical connections between the magneto and distributor, and carburetor valve diaphragms also failed. Poor corrosion protection during shipments across the Atlantic also took their toll on the engines and airframes.
By the time the bugs were worked out, the war in Europe was nearly over. However, P-47Hs still destroyed 15 enemy jet aircraft in aerial combat in March-May 1945 when aerial encounters with the Luftwaffe were rare. The type also proved itself to be a valuable V1 missile interceptor over the Channel.
The entire production total of 130 P-47Hs were delivered to the 358th Fighter Group, which was part of the 9th Air Force and operated from Great Britain, France and finally on German ground. From the crews the P-47H received several nicknames like 'torpedo', 'Thunderbullet' or 'Anteater', due to its elongated nose section.
Twelve P-47H were lost in operational crashes with the 358th Group resulting in 11 deaths, two after VE Day, and two (44-21134 on 13 April 1945 and 44-21230 on 16 April 1945) were shot down in combat, both by ground fire.
General characteristics:
Crew: 1
Length: 39 ft 2 in (11.96 m)
Wingspan: 40 ft 9 in (12.42 m)
Height: 14 ft 8 in (4.47 m)
Wing area: 300 ft² (27.87 m²)
Empty weight: 10,000 lb (4,535 kg)
Loaded weight: 13,300 lb (6,032 kg)
Max. takeoff weight: 17,500 lb (7,938 kg)
Powerplant:
1× Chrysler XIV-2220-2 sixteen-cylinder inverted Vee liquid-cooled engine, rated at 2.450 hp.
Performance:
Maximum speed: 503 mph at 30,000 ft (810 km/h at 9,145 m)
Range: 920 mi combat, 2.175 ml ferry (1.480 km / 3.500 km)
Service ceiling: 43,000 ft (13,100 m)
Rate of climb: 3,120 ft/min (15.9 m/s)
Wing loading: 44.33 lb/ft² ()
Power/mass: 0.19 hp/lb (238 W/kg)
Armament:
8× .50 in (12.7 mm) M2 Browning machine guns (3.400 rounds)
Up to 2,500 lb (1,134 kg) of bombs, drop tanks and/or 10× 5 in (127 mm) unguided rockets
The kit and its assembly:
I had the (X)P-47H on the agenda for some time, and even the respective MPM kit stashed away. But it took some time to start this project - one reason actually being the, well, crudeness of the MPM offering. Anyway, I wanted to build a service aircraft, and I wondered how this would have looked like, way beyond 1944? That brought me towards the late bubble canopy versions of the P-47D - and suddenly the idea was born to convert the XP-47H into a respective service aircraft which would not only carry the Chrysler XIV-2220-1 V16 engine, but also other improvements of the type. This eventually led to the decision to make this build a kitbash, as a spine implantation would be the easiest way to incorporate the lowered back - or so I thought...
I chose the ancient Heller P-47(N) as donation kit. Not because it was “good”, it just had the right ingredients and was cheap and easy to procure. What sounded like a simple plan turned into a twisted route to vague success. I took the front fuselage and the lower belly from the MPM kit, as well as the horizontal stabilizers and mated it with the upper and rear fuselage of the Heller Thunderbolt. This could have been easy, if both kits would not have had different fuselage diameters - the Heller kit is about 1mm too narrow, even though the length is fine. In order to compensate, I built two new fuselage halves from the salvaged pieces, and once these were stable and more or less sanded even, put together. Inside, the cockpit was taken from the Heller kit, but the seat comes from the MPM kit, and a pilot figure was added. Another problem is the fact that the MPM kit features engraved panel lines, while the Heller kit has old school, raised details and lots of rivets.
The propeller from the MPM kit is a joke, so I built a replacement from scratch - from a drop tank front half from an ancient Revell F4U, and the individual propeller blades were taken from an Italeri F4U. Inside the fuselage, a styrene tube was implanted which holds the new propeller on a metal axis, so it can spin freely.
Other personal mods include lowered flaps and the large cooler intake was opened, with foamed styrene placed inside which mimics some mesh. The same method was also used inside of the intercooler outlets (primarily in order to block any light from shining through). Inside of the landing gear wells I added some structure made from styrene profiles.
Another bigger challenge was the wing attachment - Heller and MPM kit differ considerably in this aspect, so that swapping parts is not easy. The MPM kit has the wing roots molded onto the fuselage halves, while the Heller wings are, more or less, directly attached to the fuselage. As a consequence the Heller wings hold the complete landing gear wells, while the MPM solution has divided sections. I decided to get rid of the MPM wing roots, about 3mm of material, and onto these stubs the Heller wings were attached. The landing gear came from the Heller kit, but the main wheels come from a (new) Revell Me 262 - both MPM and Heller parts are not recommended for serious use... Finally, the many exhausts and cooler flaps were either sanded away and replaced by scratched parts, or added - e. g. the vents behind the cockpit. While the Heller kit features bomb and missile hardpoints under the wings I decided to leave them away - this is supposed to be a fast interceptor, not a train-hunting plough.
Painting and markings:
As this was to be a very late WWII aircraft, NMF was certain, and I wanted to place the service P-47H into the European conflict theatre, where its speed would IMHO be best used against German jet threats. I wanted a colorful aircraft, though, and settled for a machine of the 358th FG. This group actually flew Thunderbolts in the 365-367th Squadrons, and I found several profiles of these gaudy things.
Common to all of them was an orange tail and a dark blue back, while the engine cowling would be decorated with a red front and the air outlets would carry bands in red, white and blue, with lots of tiny stars sprinkled upon. Furthermore, I found specimen with white cowlings behind the red front end, or even yellow cowlings. Pretty cool.
I tried to mimic this look. The model was basically painted with Aluminum Metallizer (Humbrol 27002) overall. The effect is really good, even without rubbing treatment. Some panels were contrasted with Aluminium Plate and Polished Steel Metallizer (Modelmaster), as well as with Aluminum (Humbrol 56, which is rather a metallic grey). The latter was also used on the landing gear. The anti-glare panel in front of the cockpit was painted with Olive Drab (ANA 613 from Modelmaster).
Since there is no air intake opening on the inline engine I decided to paint the spinner in bright red (Humbrol 19), and tried to incorporate the white and blue theme with stars decoration to the rest of the nose. As a convenient coincidence, I found decals from an Italeri B-66 in the stash: it features a version with dark blue jet air intake decorations in the right size, colors and style for what I had been looking for. So, instead of painting everything by hand I decided to incorporate this decal option.
The area behind the spinner was painted white and then the B-66 decals applied to the front flanks. The radiator air intake scoop had to be cut out, but the overall size and shape were a very good match. Even the transition into the blue spine and cockpit area worked well!
The tail was painted with Humbrol 18, later some shading with Humbrol 82 was added. The blue spine was done with a mix of Humbrol 104 and 15 (Oxford Blue and Midnight Blue) - not a perfect match for the B-66 decal colors, but after some dirt and weathering these differences would blur.
Cockpit interior was painted in Humbrol 159 (Khaki Drab) and Zinc Chromate Green from Model Master. The landing gear wells received a chrome yellow primer (Humbrol 225 - actually RAF Mid Stone but a perfect match for the task) finish.
For weathering the kit received a rubbing treatment with grinded graphite, which adds a dark, metallic shine and emphasizes the kit’s raised panel lines. Some dry painting with Aluminum was added, too, simulating chipped paint on the leading edges. I also added some oil stains around the engine, and serious soot stains at the exhaust.
Decals were, beyond the B-66 decoration, puzzled together. The aircraft' code 'CH-F[bar]' is another exotic twist, in two ways. The bar under the letter marks a second use of that code within the squadron, and as a difference from normal code placement (normally exclusively on the fuselage) I placed the aircraft's individual code letter on the fin, a practice on some P-51s and a consequence of the relatively large letter decals.
The nose art is a fictional puzzle, consisting of a Czech MiG-21 pin-up from the Pardubice '89 meeting. The “Ohio Express” tag comes from a Tamiya 1:100 F-105 Thunderchief. A neat combination that even matches the overall colors well!
As a final step, a coat of semi matt acrylic varnish was applied, with the exception of the anti glare panel, which became purely matt.
A better XP-47H? Hard to tell, since this kitbashing was a messy and rather crude work, so the overall finish does not look as good as I hoped for. But the lowered spine and the fin root extension adds to a fast look of this thing, more elegant (if that's possible in this case?) than the Razorback prototypes. I can't help, but the finished article looks like an Evel Knievel stunt vehicle? The red spinner looks a bit odd, but I'll leave it this way.
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
The Bell XP-68A owed its existence to the manufacturer’s rather disappointing outcome of its first jet fighter design, the XP-59A Airacomet. The Airacomet was a twin jet-engined fighter aircraft, designed and built during World War II after Major General Henry H. "Hap" Arnold became aware of the United Kingdom's jet program when he attended a demonstration of the Gloster E.28/39 in April 1941. He requested, and was given, the plans for the aircraft's powerplant, the Power Jets W.1, which he took back to the U.S. He also arranged for an example of the engine, the Whittle W.1X turbojet, to be flown to the U.S., along with drawings for the more powerful W.2B/23 engine and a small team of Power Jets engineers. On 4 September 1941, he offered the U.S. company General Electric a contract to produce an American version of the engine, which subsequently became the General Electric I-A. On the following day, he approached Lawrence Dale Bell, head of Bell Aircraft Corporation, to build a fighter to utilize it. As a disinformation tactic, the USAAF gave the project the designation "P-59A", to suggest it was a development of the unrelated, canceled Bell XP-59 fighter project. The P-59A was the first design fighter to have its turbojet engine and air inlet nacelles integrated within the main fuselage. The jet aircraft’s design was finalized on 9 January 1942 and the first prototype flew in October of the same year.
The following 13 service test YP-59As had a more powerful engine than their predecessor, the General Electric J31, but the improvement in performance was negligible, with top speed increased by only 5 mph and a slight reduction in the time they could be used before an overhaul was needed. One of these aircraft, the third YP-59A, was supplied to the Royal Air Force, in exchange for the first production Gloster Meteor I for evaluation and flight-offs with domestic alternatives.
British pilots found that the YP-59A compared very unfavorably with the jets that they were already flying. The United States Army Air Forces were not impressed by its performance either and cancelled the contract when fewer than half of the originally ordered aircraft had been produced. No P-59s entered combat, but the type paved the way for the next design generation of U.S. turbojet-powered aircraft and helped to develop appropriate maintenance structures and procedures.
In the meantime, a new, more powerful jet engine had been developed in Great Britain, the Halford H-1, which became later better known as the De Havilland Goblin. It was another centrifugal compressor design, but it produced almost twice as much thrust as the XP-59A’s J31 engines. Impressed by the British Gloster Meteor during the USAAF tests at Muroc Dry Lake - performance-wise as well as by the aircraft’s simplicity and ruggedness - Bell reacted promptly and proposed an alternative fighter with wing-mounted engine nacelles, since the XP-59A’s layout had proven to be aerodynamically sub-optimal and unsuited for the installation of H-1 engines. In order to save development time and because the aircraft was rather regarded as a proof-of-concept demonstrator instead of a true fighter prototype, the new aircraft was structurally based on Bell’s current piston-engine P-63 “Kingcobra”. The proposal was accepted and, in order to maintain secrecy, the new jet aircraft inherited once more a designation of a recently cancelled project, this time from the Vultee XP-68 “Tornado” fighter. Similar to the Airacomet two years before, just a simple “A” suffix was added.
Bell’s development contract covered only three XP-68A aircraft. The H-1 units were directly imported from Great Britain in secrecy, suspended in the bomb bays of B-24 Liberator bombers. A pair of these engines was mounted in mid-wing nacelles, very similar to the Gloster Meteor’s arrangement. The tailplane was given a 5° dihedral to move it out of the engine exhaust. In order to bear the new engines and their power, the wing main spars were strengthened and the main landing gear wells were moved towards the aircraft’s centerline, effectively narrowing track width. The landing gear wells now occupied the space of the former radiator ducts for the P-63’s omitted Allison V-1710 liquid-cooled V12 engine. Its former compartment behind the cockpit was used for a new fuel tank and test equipment. Having lost the propeller and its long drive shaft, the nose section was also redesigned: the front fuselage became deeper and the additional space there was used for another fuel tank in front of the cockpit and a bigger weapon bay. Different armament arrangements were envisioned, one of each was to be tested on the three prototypes: one machine would be armed with six 0.5” machine guns, another with four 20mm Hispano M2 cannon, and the third with two 37mm M10 cannon and two 0.5” machine guns. Provisions for a ventral hardpoint for a single drop tank or a 1.000 lb (550 kg) bomb were made, but this was never fitted on any of the prototypes. Additional hardpoints under the outer wings for smaller bombs or unguided missiles followed the same fate.
The three XP-68As were built at Bell’s Atlanta plant in the course of early 1944 and semi-officially christened “Airagator”. After their clandestine transfer to Muroc Dry Lake for flight tests and evaluations, the machines were quickly nicknamed “Barrelcobra” by the test staff – not only because of the characteristic shape of the engine nacelles, but also due to the sheer weight of the machines and their resulting sluggish handling on the ground and in the air. “Cadillac” was another nickname, due to the very soft acceleration through the new jet engines and the lack of vibrations that were typical for piston-engine- and propeller-driven aircraft.
Due to the structural reinforcements and modifications, the XP-68A had become a heavy aircraft with an empty weight of 4 tons and a MTOW of almost 8 tons – the same as the big P-47 Thunderbolt piston fighter, while the P-63 had an MTOW of only 10,700 lb (4,900 kg). The result was, among other flaws, a very long take-off distance, especially in the hot desert climate of the Mojave Desert (which precluded any external ordnance) and an inherent unwillingness to change direction, its turning radius was immense. More than once the brakes overheated during landing, so that extra water cooling for the main landing gear was retrofitted.
Once in the air, the aircraft proved to be quite fast – as long as it was flying in a straight line, though. Only the roll characteristics were acceptable, but flying the XP-68A remained hazardous, esp. after the loss of one of the H-1s engines: This resulted in heavily asymmetrical propulsion, making the XP-68A hard to control at all and prone to spin in level flight.
After trials and direct comparison, the XP-68A turned out not to be as fast and, even worse, much less agile than the Meteor Mk III (the RAF’s then current, operational fighter version), which even had weaker Derwent engines. The operational range was insufficient, too, esp. in regard of the planned Pacific theatre of operations, and the high overall weight precluded any considerable external load like drop tanks.
However, compared with the XP-59A, the XP-68A was a considerable step forward, but it had become quickly clear that the XP-68A and its outfit-a-propeller-design-with jet-engines approach did not bear the potential for any service fighter development: it was already outdated when the prototypes were starting their test program. No further XP-68A was ordered or built, and the three prototypes fulfilled their test and evaluation program until May 1945. During these tests, the first prototype was lost on the ground due to an engine fire. After the program’s completion, the two remaining machines were handed over to the US Navy and used for research at the NATC Patuxent River Test Centre, where they were operated until 1949 and finally scrapped.
General characteristics.
Crew: 1
Length: 33 ft 9 in (10.36 m)
Wingspan: 38 ft 4 in (11.7 m)
Height: 13 ft (3.96 m)
Wing area: 248 sq ft (23 m²)
Empty weight: 8,799 lb (3,995 kg)
Loaded weight: 15,138 lb (6,873 kg)
Max. take-off weight: 17,246 lb (7,830 kg)
Powerplant:
2× Halford H-1 (De Havilland Goblin) turbojets, rated at 3,500 lbf (15.6 kN) each
Performance:
Maximum speed: 559 mph (900 km/h)
Range: 500 mi (444 nmi, 805 km)
Service ceiling: 37,565 ft (11,450 m)
Rate of climb: 3.930 ft/min (20 m/s)
Wing loading: 44.9 lb/ft² (218.97 kg/m²)
Thrust/weight: 0.45
Time to altitude: 5.0 min to 30,000 ft (9,145 m)
Armament:
4× Hispano M2 20 mm cannon with 150 rounds
One ventral hardpoint for a single drop tank or a 1.000 lb (550 kg) bomb
6× 60 lb (30 kg) rockets or 2× 500 lb (227 kg) bombs under the outer wings
The kit and its assembly:
This whiffy Kingcobra conversion was spawned by a post by fellow user nighthunter in January 2019 at whatifmodelers.com about a potential jet-powered variant. In found the idea charming, since the XP-59 had turned out to be a dud and the Gloster Meteor had been tested by the USAAF. Why not combine both into a fictional, late WWII Bell prototype?
The basic idea was simple: take a P-63 and add a Meteor’s engine nacelles, while keeping the Kingcobra’s original proportions. This sounds pretty easy but was more challenging than the first look at the outcome might suggest.
The donor kits are a vintage Airfix 1:72 Gloster Meteor Mk.III, since it has the proper, small nacelles, and an Eastern Express P-63 Kingcobra. The latter looked promising, since this kit comes with very good surface and cockpit details (even with a clear dashboard) as well as parts for several P-63 variants, including the A, C and even the exotic “pinball” manned target version. However, anything comes at a price, and the kit’s low price point is compensated by soft plastic (which turned out to be hard to sand), some flash and mediocre fit of any of the major components like fuselage halves, the wings or the clear parts. It feels a lot like a typical short-run kit. Nevertheless, I feel inclined to build another one in a more conventional fashion some day.
Work started with the H-1 nacelles, which had to be cut out from the Meteor wings. Since they come OOB only with a well-visible vertical plate and a main wing spar dummy in the air intake, I added some fine mesh to the plate – normally, you can see directly onto the engine behind the wing spar. Another issue was the fact that the Meteor’s wings are much thicker and deeper than the P-63s, so that lots of PSR work was necessary.
Simply cutting the P-63 OOB wings up and inserting the Meteor nacelles was also not possible: the P-63 has a very wide main landing gear, due to the ventral radiators and oil coolers, which were originally buried in the wing roots and under the piston engine. The only solution: move the complete landing gear (including the wells) inward, so that the nacelles could be placed as close as possible to the fuselage in a mid-span position. Furthermore, the - now useless - radiator openings had to disappear, resulting in a major redesign of the wing root sections. All of this became a major surgery task, followed by similarly messy work on the outer wings during the integration of the Meteor nacelles. LOTS of PSR, even though the outcome looks surprisingly plausible and balanced.
Work on the fuselage started in parallel. It was built mainly OOB, using the optional ventral fin for a P-63C. The exhaust stubs as well as the dorsal carburetor intake had to disappear (the latter made easy thanks to suitable optional parts for the manned target version). Since the P-63 had a conventional low stabilizer arrangement (unlike the Meteor with its cruciform tail), I gave them a slight dihedral to move them out of the engine efflux, a trick Sukhoi engineers did on the Su-11 prototype with afterburner engines in 1947, too.
Furthermore, the whole nose ahead of the cockpit was heavily re-designed, because I wanted the “new” aircraft to lose its propeller heritage and the P-63’s round and rather pointed nose. Somewhat inspired by the P-59 and the P-80, I omitted the propeller parts altogether and re-sculpted the nose with 2C putty, creating a deeper shape with a tall, oval diameter, so that the lower fuselage line was horizontally extended forward. In a profile view the aircraft now looks much more massive and P-80esque. The front landing gear was retained, just its side walls were extended downwards with the help of 0.5mm styrene sheet material, so that the original stance could be kept. Lots of lead in the nose ensured that the model would properly stand on its three wheels.
Once the rhinoplasty was done I drilled four holes into the nose and used hollow steel needles as gun barrels, with a look reminiscent of the Douglas A-20G.
Adding the (perfectly) clear parts of the canopy as a final assembly step also turned out to be a major fight against the elements.
Painting and markings:
With an USAAF WWII prototype in mind, there were only two options: either an NMF machine, or a camouflage in Olive Drab and Neutral Grey. I went for the latter and used Tamiya XF-62 for the upper surfaces and Humbrol 156 (Dark Camouflage Grey) underneath. The kit received a light black ink wash and some post shading in order to emphasize panels. A little dry-brushing with silver around the leading edges and the cockpit was done, too.
The cockpit interior became chromate green (I used Humbrol 150, Forest Green) while the landing gear wells were painted with zinc chromate yellow (Humbrol 81). The landing gear itself was painted in aluminum (Humbrol 56).
Markings/decals became minimal, puzzled together from various sources – only some “Stars and Bars” insignia and the serial number.
Somehow this conversion ended up looking a lot like the contemporary Soviet Sukhoi Su-9 and -11 (Samolyet K and LK) jet fighter prototype – unintentionally, though. But I am happy with the outcome – the P-63 ancestry is there, and the Meteor engines are recognizable, too. But everything blends into each other well, the whole affair looks very balanced and believable. This is IMHO furthermore emphasized by the simple paint scheme. A jet-powered Kingcobra? Why not…?
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based on historical facts. BEWARE!
Some background:
The Indian „Samudree Baaj“ (समुद्री बाज, Sea Hawk) was a highly modified, navalized version of the British BAE Systems Hawk land-based training jet aircraft, which had been manufactured under license by Hindustan Aeronautics Limited (HAL). The first indigenously built Hawk Mk. 132 trainer was delivered in 2008 to the Indian Air Force, and the type has since then been updated with indigenous avionics into the “Hawk-I” Mk. 132 from 2020 onwards. The aircraft’s Rolls Royce Adour Mk 871 engine was also license-built by HAL, and the company had experience from a wide range of aircraft projects in the past.
The Samudree Baaj project was initiated in 2006 by the Indian Navy, as part of the long historic plan to provide the Indian Navy with a fully capable aircraft carrier. This plan had been initiated in 1989, when India announced a plan to replace its ageing British-built aircraft carriers, INS Vikrant and INS Viraat (ex-HMS Hermes), with two new 28,000-ton Air Defence Ships (ADS) that would operate the BAe Sea Harrier aircraft. The first vessel was to replace Vikrant, which was set to decommission in early 1997. Construction of the ADS was to start at the Cochin Shipyard (CSL) in 1993 after the Indian Naval Design Organisation had translated this design study into a production model. Following the 1991 economic crisis, the plans for construction of the vessels were put on hold indefinitely.
In 1999, then-Defence Minister George Fernandes revived the project and sanctioned the construction of the Project “71 ADS”. By that time, given the ageing Sea Harrier fleet, the letter of intent called for a carrier that would carry more modern jet fighters. In 2001, CSL released a graphic illustration showing a 32,000-ton STOBAR (Short Take-Off But Arrested Recovery) design with a pronounced ski jump. The aircraft carrier project finally received formal government approval in January 2003. By then, design updates called for a 37,500-ton carrier to operate the MiG-29K. India opted for a three-carrier fleet consisting of one carrier battle group stationed on each seaboard, and a third carrier held in reserve, in order to continuously protect both its flanks, to protect economic interests and mercantile traffic, and to provide humanitarian platforms in times of disasters, since a carrier can provide a self-generating supply of fresh water, medical assistance or engineering expertise to populations in need for assistance.
In August 2006, then-Chief of the Naval Staff, Admiral Arun Prakash stated that the designation for the vessel had been changed from Air Defence Ship (ADS) to Indigenous Aircraft Carrier (IAC). The euphemistic ADS had been adopted in planning stages to ward off concerns about a naval build-up. Final revisions to the design increased the displacement of the carrier from 37,500 tons to over 40,000 tons. The length of the ship also increased from 252 metres (827 ft) to 262 metres (860 ft).
It was at this time that, beyond the MiG-29K, primarily a carrier-capable trainer and also a light (and less costly) strike aircraft would be needed. With the running production of the Hawk Mk. 132 for the Indian Air Force and BAE Systems’ connection and experience to the USA and McDonnell/Boeing’s adaptation of the Hawk as the US Navy’s carrier-capable T-45 trainer, HAL was instructed to develop a suitable aircraft family on the Hawk’s basis for the new carriers.
HAL’s Samudree Baaj is a fully carrier-capable version of the British Aerospace Hawk Mk. The Hawk had not originally been designed to perform carrier operations, so that numerous modifications were required, such as the extensive strengthening of the airframe to withstand the excessive forces imposed by the stresses involved in catapult launches and high sink-rate landings, both scenarios being routine in aircraft carrier operations.
The aerodynamic changes of the aircraft, which were mutually developed by HAL and BAE Systems, included improvements to the low-speed handling characteristics and a reduction in the approach speed. Most notable amongst the changes made to the Hawk's design were extended flaps for better low-speed handling, along with the addition of spoilers on the wings to reduce lift and strakes on the fuselage which improved airflow and stabilizer efficiency.
Other, less obvious modifications included a reinforced airframe, the adoption of a more robust and widened landing gear, complete with a catapult tow bar attachment to the oleo strut of the new two-wheel nose gear design, and an arresting hook. The tail fin was extended by 1 foot (12 in, 30.5 cm) to compensate for the loss of the Hawk’s ventral stabilizing strakes. To make room for the arrester hook, the original ventral air brake was split and re-located to the flanks, similar to the USN’s T-45 trainer.
At the time of the Samudree Baaj’s design, the exact catapult arrangement and capacity on board of India’s new carriers was not clear yet – even more so, since the MiG-29K and its powerful engines might have made a catapult obsolete. Therefore, the Samudree Baaj was designed to be operable either with a ski jump ramp (in the style of the Russian Kiev class carriers, of which India had purchased one as INS Vikramaditya) or with only minimal launch support within the projected STOBAR concept, which included a relatively short-stroke steam catapult and a similarly short, undampened arrester gear.
By 2009 the basic airframe had been defined and four prototypes were built for two versions: the Mk. 101 trainer, which was basically a navalized version of the land-based Mk. 132 with almost the same mission equipment, and the Mk. 201, a single-seater. Two airframes of each type were built and the first Samudree Baaj flight took place in early 2011. The Indian government ordered 30 trainers and 15 attack aircraft, to be delivered with the first new Indian carrier, INS Vikrant, in late 2017.
The Samudree Baaj Mk. 201 was developed from the basic navalized Hawk airframe as a light multirole fighter with a small visual signature and high maneuverability, but high combat efficiency and capable of both strike and point defense missions. It differed from the trainer through a completely new forward fuselage whereby the forward cockpit area, which normally housed the trainee, was replaced by an electronics bay for avionics and onboard systems, including a fire control computer, a LINS 300 ring laser gyroscope inertial navigation system and a lightweight (145 kg) multimode, coherent, pulse-Doppler I band airborne radar. This multimode radar was developed from the Ferranti Blue Fox radar and capable of airborne interception and air-to-surface strike roles over water and land, with look-down/shoot-down and look-up modes. It had ten air-to-surface and ten air-to-ground modes for navigation and weapon aiming purposes.
A ventral fairing behind the radome carried a laser rangefinder and a forward-looking infrared (FLIR). Mid-air refueling was also possible, through a detachable (but fixed) probe. GPS navigation or modern night-flight systems were integrated, too.
Like the trainer, the Mk. 201 had a total of seven weapon hardpoints (1 ventral, four underwing and a pair of wing tip launch rails), but the more sophisticated avionics suite allowed a wider range of ordnance to be carried and deployed, which included radar-guided AAMs for BVR strokes and smart weapons and guided missiles – especially the Sea Eagle and AGM-84 “Harpoon” anti-ship missiles in the Indian Navy’s arsenal. For the maritime strike role and as a support for ASW missions, the Samudree Baaj Mk. 201 could even deploy Sting Ray homing torpedoes.
Furthermore, a pair of 30mm (1.18 in) ADEN machine cannon with 150 RPG were housed in a shallow fairing under the cockpit. The self-protection systems include a BAE SkyGuardian 200 RWR and automatic Vinten chaff/flare dispensers located above the engine exhaust.
The Samudree Baaj project was highly ambitious, so that it does not wonder that there were many delays and teething troubles. Beyond the complex avionics integration this included the maritime adaptation of the Adour engine, which eventually led to the uprated Adour Mk. 871-1N, which, as a side benefit, also offered about 10% more power.
However, in parallel, INS Vikrant also ran into delays: In July 2012, The Times of India reported that construction of Vikrant has been delayed by three years, and the ship would be ready for commissioning by 2018. Later, in November 2012, Indian English-language news channel NDTV reported that cost of the aircraft carrier had increased, and the delivery has been delayed by at least five years and is expected to be with the Indian Navy only after 2018 as against the scheduled date of delivery of 2014. Work then commenced for the next stage of construction, which included the installation of the integrated propulsion system, the superstructure, the upper decks, the cabling, sensors and weapons. Vikrant was eventually undocked on 10 June 2015 after the completion of structural work. Cabling, piping, heat and ventilation works were to be completed by 2017; sea trials would begin thereafter. In December 2019, it was reported that the engines on board the ship were switched on and in November 2020, only the basin trials of the aircraft carrier were completed.
By that time, the first Samudree Baaj aircraft had been delivered to Indian Navy 300 squadron, and even though only based at land at Hansa Air Station, flight training and military operations commenced. In the meantime, the start of Vikrant's trials had initially been scheduled to begin on 12 March 2020, but further construction delays caused that to be moved back to April. With the COVID-19 crisis, the navy explained that trials were unlikely to begin before September/October. During the Navy Day press meeting in December 2019, Navy Chief Admiral Karambir Singh said Vikrant would be fully operational before the end of 2022. The COVID-19 pandemic had already pushed that back to 2023 and further delays appeared possible.
In late 2020, the Indian Navy expected to commission Vikrant by the end of 2021. Until then, the Samudree Baaj fleet will remain land-based at INS Hansa near Goa. This not only is the INAS 300 home base, it is also the location of the Indian Navy's Shore Based Test Facility (SBTF), which is a mock-up of the 283-metre (928 ft) INS Vikramaditya (a modified Kiev-class aircraft carrier) deck built to train and certify navy pilots, primarily the the Mikoyan MiG-29K for operating from the aircraft carrier, but now also for the Samudree Baaj and for the developmental trials of the naval HAL Tejas lightweight fighter.
General characteristics:
Crew: 1
Length: 11.38 m (37 ft 4 in)
Wingspan: 9.39 m (30 ft 10 in)
Height: 4.30 m (14 ft 1 in)
Wing area: 17.66 m2 (190.1 sq ft)
Empty weight: 9,394 lb (4,261 kg)
Gross weight: 12,750 lb (5,783 kg)
Max takeoff weight: 9,101 kg (20,064 lb)
Fuel capacity: 1,360 kg (3,000 lb) internal
3,210 kg (7,080 lb) with 3 drop tanks
Powerplant:
1× Rolls-Royce Turbomeca Adour Mk. 871-1N non-afterburning turbofan, 28,89 kN (6,445 lbf) thrust
Performance:
Maximum speed: 1,037 km/h (644 mph, 560 kn) at sea level
Maximum speed: Mach 1.2 (never exceed at altitude)
Cruise speed: 796 km/h (495 mph, 430 kn) at 12,500 m (41,000 ft)
Carrier launch speed: 121 kn (139 mph; 224 km/h)
Approach speed: 125 kn (144 mph; 232 km/h)
Never exceed speed: 575 kn (662 mph, 1,065 km/h) / M1.04 design dive limit
Stall speed: 197 km/h (122 mph, 106 kn) flaps down
Range: 892 km (554 mi, 482 nmi) internal fuel only
Combat range: 617 km (383 mi, 333 nmi) with 2x AGM-84 and 2x 592 l (156 US gal; 130 imp gal)
Ferry range: 1,950 km (1,210 mi, 1,050 nmi) with 3 drop tanks
Service ceiling: 15,250 m (50,030 ft)
G-limits: +8/-3
Rate of climb: 58.466 m/s (11,509.1 ft/min)
Takeoff distance with maximum weapon load: 2,134 m (7,001 ft)
Landing distance at maximum landing weight with brake chute: 854 m (2,802 ft)
Landing distance at maximum landing weight without brake chute: 1,250 m (4,100 ft)
Armament:
2× 30 mm (1.181 in) Aden cannon with 150 rounds each
7× hardpoints (4× under-wing, 1× under-fuselage and 2 × wingtip)
for a total ordnance of 3.085 kg (6,800 lb) and a wide range of weapons
The kit and its assembly:
A subtle kitbashing project, inspired by a CG-rendition of a carrier-based (yet un-navalized) BAe Hawk 200 in Indian Navy service by fellow user SPINNERS in January 2021. I found the idea inspiring but thought that the basic concept could be taken further and into hardware form with a model. And I had a Matchbox Hawk 200 in The Stash™, as well as a McDonnell T-45 trainer from Italeri…
The plan sounds simple: take a T-45 and replace the cockpit section with the single-seat cockpit from the Hawk 200. And while the necessary cuts were easy to make, reality rears its ugly head when you try to mate parts from basically the same aircraft but from models by different manufacturers.
The challenges started with the fact that the fuselage shapes of both models differ – the Matchbox kit is more “voluminous”, and the different canopy shape called for a partial spine transplant, which turned out to be of very different shape than the T-45’s respective section! Lots of PSR…
In order to improve the pretty basic Matchbox Hawk cockpit I integrated the cockpit tub from the Italeri T-45, including the ejection seat, dashboard and its top cover.
For the totally different T-45 front wheel I had to enlarge the respective well and added a “ceiling” to it, since the strut had to be attached somewhere. The Hawk 200’s ventral tub for the cannons (which only the first prototype carried, later production aircraft did not feature them) were retained – partly because of their “whiffy“ nature, but also because making it disappear would have involved more major surgeries.
Most of the are behind the cockpit comes from the Italeri T-45, I just added a RHAWS fairing to the fin, extending it by 3mm.
A major problem became the air intakes, because the two kits differ in their construction. I wanted to use the Italeri parts, because they match the fairings on the fuselage flanks well and are better detailed than the Matchbox parts. But the boundary layer spacers between intakes and fuselage are molded into the Italeri parts, while the Matchbox kit has them molded into the fuselage. This called for major surgery and eventually worked out fine, and more PSR blended the rest of the fuselage donors around the cockpit together. A tedious process, though.
The pylons were puzzled together, including a former Matchbox EA-6B wing pylon under the fuselage, cut down and mounted in reverse and upside down! The ordnance comes from the Italeri NATO weapons set (Matra Magic and AGM-84), the ventral drop tank comes IIRC from an Eduard L-39 Albatros. Matra Magics were chosen because India never operated any Sidewinder AAM, just French or Soviet/Russian missiles like the R-60 or R-73 (unlikely on the Hawk, IMHO), and I had preferred a pair of Sea Eagle ASMs (from a Hasegawa Sea Harrier kit), but their span turned out to be too large for the Hawk’s low wings. The alternative, more slender Harpoons are plausible, though, since they are actually part of the Indian Navy’s inventory.
Painting and markings:
The Indian Navy theme was already settled, and I wanted to stay close to SPINNERS’ illustration as well as to real world Indian Navy aircraft. SPINNERS’ Hawk carried the typical Sea Harreir scheme in Extra Dark Sea Grey and White, and I found this livery to look a bit too much retro, because I’d place this what-if aircraft in the early 2020s, when the Sea Harriers had already been phased out. A “realistic” livery might have been an overall mid-grey paint scheme (like the land-based Indian Hawk 132s), but I found this to look too boring. As a compromise, I gave the Samudree Baaj a simple two-tone paint scheme, carried by a few late Indian Sea Harriers. It consists of upper surfaces in Dark Sea Grey (Humbrol 164) and undersides in Medium Sea Grey (Modelmaster 2058), with a low waterline. The Modelmaster MSG has – for my taste – a rather bluish hue and appears almost like PRU Blue, but I left it that way.
The decals were puzzled together from variosu sources. the roundels come from a MiG-21F (Begemot), the unit markings and tactical codes from a Model Alliance Sea Harrier sheet, and the stencils are a mix from the Matchbox Hawk 200 and the Italeri T-45.
The kit was sealed with matt acrylic varnish from Italeri.
The fictional HAL „Samudree Baaj“ looks simple, but combining kits of the basically same aircraft from different manufacturers reveals their differences, and they are not to be underestimated! However, I like the result of a navalized Hawk single-seater, and - also with the relatively simple and dull livery - it looks pretty convincing.
Many thanks to SPINNERS for the creative inspiration - even though my build is not a 100% "copy" of the artwork, but rather a step further into the navalisation idea with the T-45 parts.
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
The Bell XP-68A owed its existence to the manufacturer’s rather disappointing outcome of its first jet fighter design, the XP-59A Airacomet. The Airacomet was a twin jet-engined fighter aircraft, designed and built during World War II after Major General Henry H. "Hap" Arnold became aware of the United Kingdom's jet program when he attended a demonstration of the Gloster E.28/39 in April 1941. He requested, and was given, the plans for the aircraft's powerplant, the Power Jets W.1, which he took back to the U.S. He also arranged for an example of the engine, the Whittle W.1X turbojet, to be flown to the U.S., along with drawings for the more powerful W.2B/23 engine and a small team of Power Jets engineers. On 4 September 1941, he offered the U.S. company General Electric a contract to produce an American version of the engine, which subsequently became the General Electric I-A. On the following day, he approached Lawrence Dale Bell, head of Bell Aircraft Corporation, to build a fighter to utilize it. As a disinformation tactic, the USAAF gave the project the designation "P-59A", to suggest it was a development of the unrelated, canceled Bell XP-59 fighter project. The P-59A was the first design fighter to have its turbojet engine and air inlet nacelles integrated within the main fuselage. The jet aircraft’s design was finalized on 9 January 1942 and the first prototype flew in October of the same year.
The following 13 service test YP-59As had a more powerful engine than their predecessor, the General Electric J31, but the improvement in performance was negligible, with top speed increased by only 5 mph and a slight reduction in the time they could be used before an overhaul was needed. One of these aircraft, the third YP-59A, was supplied to the Royal Air Force, in exchange for the first production Gloster Meteor I for evaluation and flight-offs with domestic alternatives.
British pilots found that the YP-59A compared very unfavorably with the jets that they were already flying. The United States Army Air Forces were not impressed by its performance either and cancelled the contract when fewer than half of the originally ordered aircraft had been produced. No P-59s entered combat, but the type paved the way for the next design generation of U.S. turbojet-powered aircraft and helped to develop appropriate maintenance structures and procedures.
In the meantime, a new, more powerful jet engine had been developed in Great Britain, the Halford H-1, which became later better known as the De Havilland Goblin. It was another centrifugal compressor design, but it produced almost twice as much thrust as the XP-59A’s J31 engines. Impressed by the British Gloster Meteor during the USAAF tests at Muroc Dry Lake - performance-wise as well as by the aircraft’s simplicity and ruggedness - Bell reacted promptly and proposed an alternative fighter with wing-mounted engine nacelles, since the XP-59A’s layout had proven to be aerodynamically sub-optimal and unsuited for the installation of H-1 engines. In order to save development time and because the aircraft was rather regarded as a proof-of-concept demonstrator instead of a true fighter prototype, the new aircraft was structurally based on Bell’s current piston-engine P-63 “Kingcobra”. The proposal was accepted and, in order to maintain secrecy, the new jet aircraft inherited once more a designation of a recently cancelled project, this time from the Vultee XP-68 “Tornado” fighter. Similar to the Airacomet two years before, just a simple “A” suffix was added.
Bell’s development contract covered only three XP-68A aircraft. The H-1 units were directly imported from Great Britain in secrecy, suspended in the bomb bays of B-24 Liberator bombers. A pair of these engines was mounted in mid-wing nacelles, very similar to the Gloster Meteor’s arrangement. The tailplane was given a 5° dihedral to move it out of the engine exhaust. In order to bear the new engines and their power, the wing main spars were strengthened and the main landing gear wells were moved towards the aircraft’s centerline, effectively narrowing track width. The landing gear wells now occupied the space of the former radiator ducts for the P-63’s omitted Allison V-1710 liquid-cooled V12 engine. Its former compartment behind the cockpit was used for a new fuel tank and test equipment. Having lost the propeller and its long drive shaft, the nose section was also redesigned: the front fuselage became deeper and the additional space there was used for another fuel tank in front of the cockpit and a bigger weapon bay. Different armament arrangements were envisioned, one of each was to be tested on the three prototypes: one machine would be armed with six 0.5” machine guns, another with four 20mm Hispano M2 cannon, and the third with two 37mm M10 cannon and two 0.5” machine guns. Provisions for a ventral hardpoint for a single drop tank or a 1.000 lb (550 kg) bomb were made, but this was never fitted on any of the prototypes. Additional hardpoints under the outer wings for smaller bombs or unguided missiles followed the same fate.
The three XP-68As were built at Bell’s Atlanta plant in the course of early 1944 and semi-officially christened “Airagator”. After their clandestine transfer to Muroc Dry Lake for flight tests and evaluations, the machines were quickly nicknamed “Barrelcobra” by the test staff – not only because of the characteristic shape of the engine nacelles, but also due to the sheer weight of the machines and their resulting sluggish handling on the ground and in the air. “Cadillac” was another nickname, due to the very soft acceleration through the new jet engines and the lack of vibrations that were typical for piston-engine- and propeller-driven aircraft.
Due to the structural reinforcements and modifications, the XP-68A had become a heavy aircraft with an empty weight of 4 tons and a MTOW of almost 8 tons – the same as the big P-47 Thunderbolt piston fighter, while the P-63 had an MTOW of only 10,700 lb (4,900 kg). The result was, among other flaws, a very long take-off distance, especially in the hot desert climate of the Mojave Desert (which precluded any external ordnance) and an inherent unwillingness to change direction, its turning radius was immense. More than once the brakes overheated during landing, so that extra water cooling for the main landing gear was retrofitted.
Once in the air, the aircraft proved to be quite fast – as long as it was flying in a straight line, though. Only the roll characteristics were acceptable, but flying the XP-68A remained hazardous, esp. after the loss of one of the H-1s engines: This resulted in heavily asymmetrical propulsion, making the XP-68A hard to control at all and prone to spin in level flight.
After trials and direct comparison, the XP-68A turned out not to be as fast and, even worse, much less agile than the Meteor Mk III (the RAF’s then current, operational fighter version), which even had weaker Derwent engines. The operational range was insufficient, too, esp. in regard of the planned Pacific theatre of operations, and the high overall weight precluded any considerable external load like drop tanks.
However, compared with the XP-59A, the XP-68A was a considerable step forward, but it had become quickly clear that the XP-68A and its outfit-a-propeller-design-with jet-engines approach did not bear the potential for any service fighter development: it was already outdated when the prototypes were starting their test program. No further XP-68A was ordered or built, and the three prototypes fulfilled their test and evaluation program until May 1945. During these tests, the first prototype was lost on the ground due to an engine fire. After the program’s completion, the two remaining machines were handed over to the US Navy and used for research at the NATC Patuxent River Test Centre, where they were operated until 1949 and finally scrapped.
General characteristics.
Crew: 1
Length: 33 ft 9 in (10.36 m)
Wingspan: 38 ft 4 in (11.7 m)
Height: 13 ft (3.96 m)
Wing area: 248 sq ft (23 m²)
Empty weight: 8,799 lb (3,995 kg)
Loaded weight: 15,138 lb (6,873 kg)
Max. take-off weight: 17,246 lb (7,830 kg)
Powerplant:
2× Halford H-1 (De Havilland Goblin) turbojets, rated at 3,500 lbf (15.6 kN) each
Performance:
Maximum speed: 559 mph (900 km/h)
Range: 500 mi (444 nmi, 805 km)
Service ceiling: 37,565 ft (11,450 m)
Rate of climb: 3.930 ft/min (20 m/s)
Wing loading: 44.9 lb/ft² (218.97 kg/m²)
Thrust/weight: 0.45
Time to altitude: 5.0 min to 30,000 ft (9,145 m)
Armament:
4× Hispano M2 20 mm cannon with 150 rounds
One ventral hardpoint for a single drop tank or a 1.000 lb (550 kg) bomb
6× 60 lb (30 kg) rockets or 2× 500 lb (227 kg) bombs under the outer wings
The kit and its assembly:
This whiffy Kingcobra conversion was spawned by a post by fellow user nighthunter in January 2019 at whatifmodelers.com about a potential jet-powered variant. In found the idea charming, since the XP-59 had turned out to be a dud and the Gloster Meteor had been tested by the USAAF. Why not combine both into a fictional, late WWII Bell prototype?
The basic idea was simple: take a P-63 and add a Meteor’s engine nacelles, while keeping the Kingcobra’s original proportions. This sounds pretty easy but was more challenging than the first look at the outcome might suggest.
The donor kits are a vintage Airfix 1:72 Gloster Meteor Mk.III, since it has the proper, small nacelles, and an Eastern Express P-63 Kingcobra. The latter looked promising, since this kit comes with very good surface and cockpit details (even with a clear dashboard) as well as parts for several P-63 variants, including the A, C and even the exotic “pinball” manned target version. However, anything comes at a price, and the kit’s low price point is compensated by soft plastic (which turned out to be hard to sand), some flash and mediocre fit of any of the major components like fuselage halves, the wings or the clear parts. It feels a lot like a typical short-run kit. Nevertheless, I feel inclined to build another one in a more conventional fashion some day.
Work started with the H-1 nacelles, which had to be cut out from the Meteor wings. Since they come OOB only with a well-visible vertical plate and a main wing spar dummy in the air intake, I added some fine mesh to the plate – normally, you can see directly onto the engine behind the wing spar. Another issue was the fact that the Meteor’s wings are much thicker and deeper than the P-63s, so that lots of PSR work was necessary.
Simply cutting the P-63 OOB wings up and inserting the Meteor nacelles was also not possible: the P-63 has a very wide main landing gear, due to the ventral radiators and oil coolers, which were originally buried in the wing roots and under the piston engine. The only solution: move the complete landing gear (including the wells) inward, so that the nacelles could be placed as close as possible to the fuselage in a mid-span position. Furthermore, the - now useless - radiator openings had to disappear, resulting in a major redesign of the wing root sections. All of this became a major surgery task, followed by similarly messy work on the outer wings during the integration of the Meteor nacelles. LOTS of PSR, even though the outcome looks surprisingly plausible and balanced.
Work on the fuselage started in parallel. It was built mainly OOB, using the optional ventral fin for a P-63C. The exhaust stubs as well as the dorsal carburetor intake had to disappear (the latter made easy thanks to suitable optional parts for the manned target version). Since the P-63 had a conventional low stabilizer arrangement (unlike the Meteor with its cruciform tail), I gave them a slight dihedral to move them out of the engine efflux, a trick Sukhoi engineers did on the Su-11 prototype with afterburner engines in 1947, too.
Furthermore, the whole nose ahead of the cockpit was heavily re-designed, because I wanted the “new” aircraft to lose its propeller heritage and the P-63’s round and rather pointed nose. Somewhat inspired by the P-59 and the P-80, I omitted the propeller parts altogether and re-sculpted the nose with 2C putty, creating a deeper shape with a tall, oval diameter, so that the lower fuselage line was horizontally extended forward. In a profile view the aircraft now looks much more massive and P-80esque. The front landing gear was retained, just its side walls were extended downwards with the help of 0.5mm styrene sheet material, so that the original stance could be kept. Lots of lead in the nose ensured that the model would properly stand on its three wheels.
Once the rhinoplasty was done I drilled four holes into the nose and used hollow steel needles as gun barrels, with a look reminiscent of the Douglas A-20G.
Adding the (perfectly) clear parts of the canopy as a final assembly step also turned out to be a major fight against the elements.
Painting and markings:
With an USAAF WWII prototype in mind, there were only two options: either an NMF machine, or a camouflage in Olive Drab and Neutral Grey. I went for the latter and used Tamiya XF-62 for the upper surfaces and Humbrol 156 (Dark Camouflage Grey) underneath. The kit received a light black ink wash and some post shading in order to emphasize panels. A little dry-brushing with silver around the leading edges and the cockpit was done, too.
The cockpit interior became chromate green (I used Humbrol 150, Forest Green) while the landing gear wells were painted with zinc chromate yellow (Humbrol 81). The landing gear itself was painted in aluminum (Humbrol 56).
Markings/decals became minimal, puzzled together from various sources – only some “Stars and Bars” insignia and the serial number.
Somehow this conversion ended up looking a lot like the contemporary Soviet Sukhoi Su-9 and -11 (Samolyet K and LK) jet fighter prototype – unintentionally, though. But I am happy with the outcome – the P-63 ancestry is there, and the Meteor engines are recognizable, too. But everything blends into each other well, the whole affair looks very balanced and believable. This is IMHO furthermore emphasized by the simple paint scheme. A jet-powered Kingcobra? Why not…?
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based on historical facts. BEWARE!
Some background:
In the first years of the war, the Wehrmacht had only little interest in developing self-propelled anti-aircraft guns, but as the Allies developed air superiority and dedicated attack aircraft threatened the ground troops from above, the need for more mobile and better-armed self-propelled anti-aircraft guns increased. As a stopgap solution the Wehrmacht initially adapted a variety of wheeled, half-track and tracked vehicles to serve as mobile forward air defense positions. Their tasks were to protect armor and infantry units in the field, as well as to protect temporary forward area positions such as mobile headquarters and logistic points.
These vehicles were only lightly armored, if at all, and rather mobilized the anti-aircraft weapons. As Allied fighter bombers and other ground attack aircraft moved from machine gun armament and bombing to air-to-ground rockets and large-caliber cannons, the air defense positions were even more vulnerable. The answer was to adapt a tank chassis with a specialized turret that would protect the gun crews while they fired upon approaching Allied aircraft. Furthermore, the vehicle would have the same mobility as the battle tanks it protected.
Initial German AA-tank designs were the ‘Möbelwagen’ and the ‘Wirbelwind’, both conversions of refurbished Panzer IV combat tank chassis with open platforms or turrets with four 20mm cannon. Alternatively, a single 37mm AA gun was mounted, too – but all these vehicles were just a compromise and suffered from light armor, a high silhouette and lack of crew protection.
Further developments of more sophisticated anti-aircraft tank designs started in late 1943 and led into different directions. One development line was the ‘Kugelblitz’, another Panzer IV variant, but this time the ball-shaped turret, armed with very effective 30 mm MK 103 cannon, was fully integrated into the hull, resulting in a low silhouette and a protected crew. However, the ‘Kugelblitz’ only featured two of these guns and the tilting turret was very cramped and complicated. Venting and ammunition feed problems led to serious delays and a prolonged development stage.
The ‘Coelian’ family of bigger turrets with various weapon options for the Panzer V (the ‘Panther’) was another direction, especially as a response against the armored Il-2 attack aircraft at the Eastern front and against flying targets at medium altitude. Targets at high altitude, esp. Allied bombers, were to be countered with the very effective 8.8 cm Flak, and there were also several attempts to mount this weapon onto a fully armored hull.
The primary weapon for a new low/medium altitude anti-aircraft tank was to become the heavy automatic 55 mm MK 214. Like the 30 mm MK 103 it was a former aircraft weapon, belt-fed and adapted to continuous ground use. However, in early 1944, teething troubles with the ‘Kugelblitz’ suggested that a completely enclosed turret with one or (even better) two of these new weapons, mounted on a ‘Panther’ or the new E-50/75 tank chassis, would need considerable development time. Operational vehicles were not expected to enter service before mid-1945. In order to fill this operational gap, a more effective solution than the Panzer IV AA conversions, with more range and firepower than anything else currently in service, was direly needed.
This situation led to yet another hasty stopgap solution, the so-called ‘Ostwind II’ weapon system, which consisted primarily of a new turret, mated with a standard medium battle tank chassis. It was developed in a hurry in the course of 1944 and already introduced towards the end of the same year. The ‘Ostwind II’ was a compromise in the worst sense: even though it used two 37 mm FlaK 43 guns in a new twin mount and offered better firepower than any former German AA tank, it also retained many weaknesses from its predecessors: an open turret with only light armor and a high silhouette. But due to the lack of time and resources, the ‘Ostwind II’ was the best thing that could be realized on short notice, and with the perspective of more effective solutions within one year’s time it was rushed into production.
The ‘Ostwind II’ system was an open, roughly diamond-shaped, octagonal turret, very similar in design to the Panzer IV-based ‘Wirbelwind’ and ‘Ostwind’ (which was re-designated ‘Ostwind I’). As a novelty, in order to relieve the crew from work overload, traverse and elevation of the turret was hydraulic, allowing a full elevation (-4° to +90° was possible) in just over four seconds and a full 360° traverse in 15 seconds. This had become necessary because the new turret was bigger and heaver, both the weapons and their crews required more space, so that the Ostwind II complex could not be mounted onto the Panzer IV chassis anymore and movement by hand was just a fallback option.
In order to provide the ‘Ostwind II’ with a sufficiently large chassis, it was based on the SdKfz. 171 Panzer V medium battle tank, the ‘Panther’, exploiting its bigger turret ring, armor level and performance. The Panther chassis had, by late 1944, become available for conversions in considerable numbers through damaged and/or recovered combat tanks, and updated details like new turrets or simplified road wheels were gradually introduced into production and during refurbishments. Mounting the ‘Ostwind II’ turret on the Panzer VI (Tiger) battle tank chassis had been theoretically possible, too, but it never happened, because the Tiger lacked agility and its protection level and fuel consumption were considered impractical for an SPAAG that would typically protect battle tank groups.
The ‘Ostwind II’ turret was built around a motorized mount for the automatic 3.7 cm FlaK 43 twin guns. These proven weapons were very effective against aircraft flying at altitudes up to 4,200 m, but they also had devastating effect against ground targets. The FlaK 43’s armor penetration was considerable when using dedicated ammunition: at 100 m distance it could penetrate 36 mm of a 60°-sloped armor, and at 800 m distance correspondingly 24 mm. The FlaK 43’s theoretical maximum rate of fire was 250 shots/minute, but it was practically kept at ~120 rpm in order to save ammunition and prevent wear of the barrels. The resulting weight of fire was 76.8 kg (169 lb) per minute, but this was only theoretical, too, because the FlaK 43 could only be fed manually by 6-round clips – effectively, only single shots or short bursts could be fired, but a trained crew could maintain fire through using alternating gun use. A more practical belt feed was at the time of the Ostwind II's creation not available yet, even though such a mechanism was already under development for the fully enclosed Coelian turret, which could also take the FlaK 43 twin guns, but the armament was separated from the turret crew.
The new vehicle received the official designation ‘Sd.Kfz. 171/2 Flakpanzer V’, even though ‘Ostwind II’ was more common. When production actually began and how many were built is unclear. The conversion of Panther hulls could have started in late-1944 or early-1945, with sources disagreeing. The exact number of produced vehicles is difficult to determine, either. Beside the prototype, the number of produced vehicles goes from as little as 6 to over 40. The first completed Ostwind II SPAAGs were exclusively delivered to Eastern front units and reached them in spring 1945, where they were immediately thrown into action.
All Flakpanzer vehicles at that time were allocated to special anti-aircraft tank platoons (so-called Panzer Flak Züge). These were used primarily to equip Panzer Divisions, and in some cases given to special units. By the end of March 1945, there were plans to create mixed platoons equipped with the Ostwinds and other Flakpanzers. Depending on the source, they were either to be used in combination with six Kugelblitz, six Ostwinds and four Wirbelwinds or with eight Ostwinds and three Sd.Kfz. 7/1 half-tracks. Due to the war late stage and the low number of anti-aircraft tanks of all types built, this reorganization was never truly implemented, so that most vehicles were simply directly attached to combat units, primarily to the commanding staff.
The Ostwind II armament proved to be very effective, but the open turret (nicknamed ‘Keksdose’ = cookie tin) left the crews vulnerable. The crew conditions esp. during wintertime were abominable, and since aiming had to rely on vision the system's efficacy was limited, esp. against low-flying targets. The situation was slightly improved when the new mobile ‘Medusa’ and ‘Basilisk’ surveillance and target acquisition systems were introduced. These combined radar and powerful visual systems and guided the FlaK crews towards incoming potential targets, what markedly improved the FlaKs' first shot hit probability. However, the radar systems rarely functioned properly, the coordination of multiple SPAAGs in the heat of a low-level air attack was a challenging task, and - to make matters worse - the new mobile radar systems were even more rare than the new SPAAGs themselves.
All Ostwind II tanks were built from recovered ‘Panther’ battle tanks of various versions. The new Panther-based SPAAGs gradually replaced most of the outdated Panzer IV AA variants as well as the Ostwind I. Their production immediately stopped in the course of 1945 when the more sophisticated 'Coelian' family of anti-aircraft tanks with fully enclosed turrets became available. This system was based on Panzer V hulls, too, and it was soon followed by the first E-50 SPAAGs with the new, powerful twin-55 mm gun.
Specifications:
Crew: Six (commander, gunner, 2× loader, driver, radio-operator/hull machine gunner)
Weight: 43.8 tonnes (43.1 long tons; 48.3 short tons)
Length (hull only): 6.87 m (22 ft 6 in)
Width: 3.42 m (11 ft 3 in)
Height: 3.53 m (11 ft 6 3/4 in)
Suspension: Double torsion bar, interleaved road wheels
Fuel capacity: 720 litres (160 imp gal; 190 US gal)
Armor:
15–80 mm (0.6 – 3.15 in)
Performance:
Maximum road speed: 46 km/h (29 mph)
Operational range: 250 km (160 mi)
Power/weight: 15.39 PS (11.5 kW)/tonne (13.77 hp/ton)
Engine:
Maybach HL230 P30 V-12 petrol engine with 700 PS (690 hp, 515 kW)
ZF AK 7-200 gear; 7 forward 1 reverse
Armament:
2× 37 mm (1.46 in) FlaK 43 cannon in twin mount with 1.200 rounds
1× 7.92 mm MG 34 machine gun in the front glacis plate with 2.500 rounds
The kit and its assembly:
This was a spontaneous build, more or less the recycling of leftover parts from a 1:72 Revell Ostwind tank on a Panzer III chassis that I had actually bought primarily for the chassis (it became a fictional Aufklärungspanzer III). When I looked at the leftover turret, I wondered about a beefed-up/bigger version with two 37 mm guns. Such an 'Ostwind II' was actually on the German drawing boards, but never realized - but what-if modelling can certainly change that. However, such a heavy weapon would have to be mounted on a bigger/heavier chassis, so the natural choice became the Panzer V, the Panther medium battle tank. This way, my ‘Ostwind II’ interpretation was born.
The hull for this fictional AA tank is a Hasegawa ‘Panther Ausf. G’ kit, which stems from 1973 and clearly shows its age, at least from today’s point of view. While everything fits well, the details are rather simple, if not crude (e. g. the gratings on the engine deck or the cupola on the turret). However, only the lower hull and the original wheels were used since I wanted to portray a revamped former standard battle tank.
The turret was a more complicated affair. It had to be completely re-constructed, to accept the enlarged twin gun and to fit onto the Panther hull. The first step was the assembly of the twin gun mount, using parts from the original Ostwind kit and additional parts from a second one. In order to save space and not to make thing uber-complicated I added the second weapon to the right side of the original gun and changed some accessories.
This, together with the distance between the barrels, gave the benchmark for the turret's reconstruction. Since the weapon had not become longer, I decided to keep things as simple as possible and just widen the open turret - I simply took the OOB Ostwind hexagonal turret (which consists of an upper and lower half), cut it up vertically and glued them onto the Panther turret's OOB base, shifting the sides just as far to the outside that the twin gun barrels would fit between them - a distance of ~0.4 inch (1 cm). At the rear the gap was simply closed with styrene sheet, while the front used shield parts from the Revell Ostwind kit that come from a ground mount for the FlaK 43. Two parts from this shield were glued together and inserted into the front gap. While this is certainly not as elegant as e. g. the Wirbelwind turret, I think that this solution was easier to integrate.
Massive PSR was necessary to blend the turret walls with the Panther turret base, and as a late modification the opening for the sight had to be moved, too. To the left of the weapons, I also added a raised protective shield for the commander.
Inside of the turret, details from the Ostwind kit(s), e. g. crew seats and ammunition clips, were recycled, too.
Painting and markings:
Since the Ostwind II would be based on a repaired/modified former Panzer V medium battle tank, I settled upon a relatively simple livery. The kit received a uniform finish in Dunkelgelb (RAL 7028), with a network of greenish-grey thin stripes added on top, to break up the tank's outlines and reminiscent of the British ‘Malta’ scheme, but less elaborate. The model and its parts were initially primed with matt sand brown from the rattle can (more reddish than RAL 7028) and then received an overall treatment with thinned RAL 7028 from Modelmaster, for an uneven, dirty and worn look. The stripes were created with thinned Tamiya XF-65 (Field Grey).
Once dry, the whole surface received a dark brown wash, details were emphasized with dry-brushing in light grey and beige. Decals were puzzled together from various German tank sheets, and the kit finally sealed with matt acrylic varnish.
The black vinyl tracks were also painted/weathered, with a wet-in-wet mix of black, grey, iron and red brown (all acrylics). Once mounted into place, mud and dust were simulated around the running gear and the lower hull with a greyish-brown mix of artist mineral pigments.
A bit of recycling and less exotic than one would expect, but it’s still a whiffy tank model that fits well into the historic gap between the realized Panzer IV AA tanks and the unrealized E-50/75 projects. Quite subtle! Creating the enlarged turret was the biggest challenge, even, even more so because it was/is an open structure and the interior can be readily seen. But the new/bigger gun fits well into it, and it even remained movable!
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
Both Imperial Japanese Army and Navy Aviation (IJA and IJN, respectively) were very aware of the developments of jet engines, esp. through close contact with Germany and mutual exchange of blueprints and even hardware. But it was the IJN which basically drove jet-powered aircraft, e. g. through the Kyūshū J7W2 Shinden or Nakajima J9Y1 Kikka fighters.
The IJA was far behind schedule. Its primary jet projects had been conversions of existing, piston-engine-driven bomber types, but the increasing threat through high and fast incoming B-29 bombers, as well as the potential danger of even faster, jet-powered types, stirred the development of fast and agile interceptors with a heavy armament.
Since no such indigenous design existed (the IJA rejected the logical option to adapt an IJN types!), German engineers and design had a strong impact on what was to become the Ki-202 - a parallel development to the two-engined, heavier Ki-201 "Karyu", which resembled much the German Me 262.
The Ki-202 was developed by the Nippon Kokusai Koku Kogyo in a very short time frame: initial work started in late 1944, and the prototype was ready in summer 1945. The Ki-202 was regarded as a light, dedicated interceptor for spot defence, which should be produced in large numbers and with less investment of sparse resources and work labor per unit than the Karyu.
The Ki-202 was a very compact and simple aircraft. Outwardly it bore a striking resemblance to Kurt Tank's Ta 183 "Huckebein" jet fighter that had been under development in Germany since 1942, but the Ki-202 was much more simplified, both concerning construction and aerodynamics, as it was so direly needed and, beyond the jet engine, no big development risk was to be dared.
For instance, in order to avoid trouble with swept wings (which had not been incorporated in Japanese aircraft design yet, even though some wind tunnel test results already existed, as well as scientific input from Germany), the Ki-202 featured straight wings with a laminar-flow profile. The tail section was also different from the Ta 183: instead of the Ta 183's highly swept tail fin and a T-tail arrangement, the Ki-202 featured a relatively slender, staright tail boom above the jet exhaust, carrying a conventional stabilizer arrangement with only moderate sweep.
The fuselage resembled much Hans Multhopp's Ta 183, with a nose air intake, the pressurized cockpit placed above the air duct. The cockpot featured a frameless bubble canopy with an armored windscreen that offered an excellent field of view. Another novelty for the IJA was a tricycle landing gear that retracted into the lower fuselage. The engine (initially a single Ishikawajima Ne-20 turbojet, rated at 4.66 kN/475 kgf) filled the whole lower fuselage half. It lay between the main landing gear wells, with fuel cells above them and in the wing roots.
The aircraft had a rather stubby appearance, but turned out to be easy to handle and highly agile. Its weak spot was the Ne-20 engine, which was based on the German BMW 003 turbojet. Its low power output limited the Ki-202's performance so much that the initial prototypes (two were built) could only take off with reduced fuel - in fact, one of these machines was lost when it overrun the runway and crashed beyond repair.
Hence, only basic flight testing without any military equipment on board could be done until April 1945, and after the starting crash the other prototype was actually towed into the air, where it would, at safe height, power up its engine and perform a very limited test program.
When it became available in May 1945, a slightly uprated Ne-20-Kai engine was installed, but this measure hardly made the aircraft suitable to serious military service.
Things changed dramatically with the introduction of the much improved Ne-230 and Ne-330 engines. The latter had a thrust rating at 12.75 kN/1.300 kgf of thrust - nearly three times of what the early Ne-20 could deliver and close to the German 2nd generation Heinkel HeS 011 turbojet.
This new engine necessitated a slightly widened exhaust nozzle, and in the course of this modifications many detail refinements on prototypes #3 and 4 were made, including anti-flutter weights on the horizontal stabilizers and small wing fences.
In September 1945 this "new" aircraft eventually entered IJA service as "Ki-202 Kai", officially called 'Goryō' (御霊 - "Vengeful ghost") but also nicknamed 'Nezumi' (ネズミ - "Mouse") by its crews
The new type proved to be an immediate success. The Ki-202 Kai had a very good rate of climb, the short wings, coupled with a center-heavy CG due to the compact "pod and boom" layout, offered a very high manouverybility that was on par with contemporary Allied piston-engined fighters. As a bonus, its small size made the 'Goryō' a target which was hard to acquire or hit.
On the other side, the aircraft sported a powerful cannon armament (two fuselage-mounted 20 mm Ho-5 cannons, each with 150 RPG, plus two fuselage-mounted 30 mm Ho-155-II cannons, each with 50 RPG), and it was able to carry unguided air-to-air missiles under its wings, or two 150 L (40 US gal) drop tanks on either wing or a pair of 250 kg (550 lb) bombs.
On the downside, the Ne-330 engine had a very high fuel consumption rate, its throttle response was marginal, and its reliability was poor, especially in the initial production batches which suffered from material failures and lack of engineering experience.
General characteristics
Crew: one
Length: 8.96 m (29 ft 4 in)
Wingspan: 9,74 m (31 ft 10 1/2 in)
Height: 3,69 m (12 ft 1 in)
Wing area: 17.5 m² (188 ft²)
Empty weight: 2,380 kg (5,247 lb)
Loaded weight: 4,300 kg (9,480 lb)
Powerplant:
1× Ishikawajima Ne-330 engine with 12.75 kN/1.300 kgf of thrust
Performance
Maximum speed: 855 km/h (531 mph)
Stall speed: 140 km/h (92 knots, 106 mph) (power off, flaps down)
Range: 1.250 km (673 nmi, 776 mi)
Service ceiling: 14.000 m (45,932 ft)
Rate of climb: 20,4 m/s (4,020 ft/min)
Wing loading: 196 kg/m² (41 lb/ft²)
Thrust/weight: 0.37
Armament
2× 20 mm Ho-5 cannons with 150 RPG
2× 30 mm Ho-155-II cannons with 50 RPG
2× underwing hardpoints for up to 250 kg (551 lb) each
(for racks with unguided missiles, drop tanks or bombs)
The kit and its assembly:
A spontaneous project, inspired by a similar build (in French livery, though) on whatifmodelers.com some time ago, and an interim project while I waited for ordered decals for another whif on the bench.
I had a surplus Ta 183 from PM Models in store, and eventually considered it for conversion. When I recently got hands on several PZL TS-11 'Iskra' trainers from Master Craft, I eventually got the inspiration (and parts!) I needed and decided to make a kitbash, retro-fitting the rather futuristic Ta 183 with straight wings and a tail boom.
Conversion was rather straightforward, even though little from the Ta 183 was left: just the fuselage halves, air intake, canopy and parts of the landing gear. The Iskra 'donated' its wings and tail, as well as the front wheel.
Main wheels, cockpit interior, exhaust pipe and pilot figure come from the scrap box - noteworthy is the landing gear well interior. The PM kit just has a shallow, blank fairing - I cut that away and inserted parts from a jet engine (from a Revell F-16, the old kit which comes with a truck, trolley and a spare engine as props) - finally got use for these rather crude parts!
Some putty work was necessary at the fuselage/tail intersection, as well as at the wing roots, but overall the body work was rather quick and simple.
The packs of unguided missiles under the wings actually belong to the Matchbox BAC Strikemaster - I found an illustration of a similar arrangement on a Japanese rocket fighter, and they suit the 'Vengeful Ghost' well.
Painting and markings:
By tendency, I rather keep whifs' liveries simple and unspectacular - but I already have built some and want to avoid repetition. So I settled for an improvised camouflage scheme on bare metal, which I kept for the lower sides. AFAIK, such makeshift paint schemes were pretty common, and since no primer was used, quickly deteriorated.
To keep things simple I painted the finished model with Metallizer from Modelmaster, with different tones in selected areas (e. g. Aluminum Plate, Steel). After that I applied a thin coat of Humbrol 172 with a soft, broad brush on the upper surfaces, the waterline on the flanks masked with Tamiya tape. The metal below was to shine through, streaks were welcome, so that the finish became willingly uneven (and more interesting). This was later enhanced with some dry-brushed Humbrol 102 on top of that.
For more contrast, I added white Homeland Defence bands under the Hinomaru markings on wings and fuselage. These were cut from white decal sheet, not painted, and the Hinomaru placed on top of that. The yellow bands on the wings' ledaing edges are decals, too, a very effective method! The other few markings came from AeroMaster Decals and Microscale sheets.
Weathering included, beyond a wash with thinned black ink, a light sand paper treatment on the leading edges and in areas with much external contact, for an even shaggier look, and some grinded graphite was rubbed onto the bare metal surfaces for a worn look and some extra metal shine.
Finally, everything was sealed under a coat of semi-gloss acryl varnish.
A 'quickie', and the result looks a bit odd, IMHO - like a Saab 29 hatchling, maybe?