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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 English Electric Skyspark was a British fighter aircraft that served as an interceptor during the 1960s, the 1970s and into the late 1980s. It remains the only UK-designed-and-built fighter capable of Mach 2. The Skyspark was designed, developed, and manufactured by English Electric, which was later merged into the newly-formed British Aircraft Corporation. Later the type was marketed as the BAC Skyspark.
The specification for the aircraft followed the cancellation of the Air Ministry's 1942 E.24/43 supersonic research aircraft specification which had resulted in the Miles M.52 program. W.E.W. "Teddy" Petter, formerly chief designer at Westland Aircraft, was a keen early proponent of Britain's need to develop a supersonic fighter aircraft. In 1947, Petter approached the Ministry of Supply (MoS) with his proposal, and in response Specification ER.103 was issued for a single research aircraft, which was to be capable of flight at Mach 1.5 (1,593 km/h) and 50,000 ft (15,000 m).
Petter initiated a design proposal with F W "Freddie" Page leading the design and Ray Creasey responsible for the aerodynamics. As it was designed for Mach 1.5, it had a 40° swept wing to keep the leading edge clear of the Mach cone. To mount enough power into the airframe, two engines were installed, in an unusual, stacked layout and with a high tailplane This proposal was submitted in November 1948, and in January 1949 the project was designated P.1 by English Electric. On 29 March 1949 MoS granted approval to start the detailed design, develop wind tunnel models and build a full-size mock-up.
The design that had developed during 1948 evolved further during 1949 to further improve performance. To achieve Mach 2 the wing sweep was increased to 60° with the ailerons moved to the wingtips. In late 1949, low-speed wind tunnel tests showed that a vortex was generated by the wing which caused a large downwash on the initial high tailplane; this issue was solved by lowering the tail below the wing. Following the resignation of Petter, Page took over as design team leader for the P.1. In 1949, the Ministry of Supply had issued Specification F23/49, which expanded upon the scope of ER103 to include fighter-level manoeuvring. On 1 April 1950, English Electric received a contract for two flying airframes, as well as one static airframe, designated P.1.
The Royal Aircraft Establishment disagreed with Petter's choice of sweep angle (60 degrees) and the stacked engine layout, as well as the low tailplane position, was considered to be dangerous, too. To assess the effects of wing sweep and tailplane position on the stability and control of Petter's design Short Brothers were issued a contract, by the Ministry of Supply, to produce the Short SB.5 in mid-1950. This was a low-speed research aircraft that could test sweep angles from 50 to 69 degrees and tailplane positions high or low. Testing with the wings and tail set to the P.1 configuration started in January 1954 and confirmed this combination as the correct one. The proposed 60-degree wing sweep was retained, but the stacked engines had to give way to a more conventional configuration with two engines placed side-by-side in the tail, but still breathing through a mutual nose air intake.
From 1953 onward, the first three prototype aircraft were hand-built at Samlesbury. These aircraft had been assigned the aircraft serials WG760, WG763, and WG765 (the structural test airframe). The prototypes were powered by un-reheated Armstrong Siddeley Sapphire turbojets, as the selected Rolls-Royce Avon engines had fallen behind schedule due to their own development problems. Since there was not much space in the fuselage for fuel, the thin wings became the primary fuel tanks and since they also provided space for the stowed main undercarriage the fuel capacity was relatively small, giving the prototypes an extremely limited endurance. The narrow tires housed in the thin wings rapidly wore out if there was any crosswind component during take-off or landing. Outwardly, the prototypes looked very much like the production series, but they were distinguished by the rounded-triangular air intake with no center-body at the nose, short fin, and lack of operational equipment.
On 9 June 1952, it was decided that there would be a second phase of prototypes built to develop the aircraft toward achieving Mach 2.0 (2,450 km/h); these were designated P.1B while the initial three prototypes were retroactively reclassified as P.1A. P.1B was a significant improvement on P.1A. While it was similar in aerodynamics, structure and control systems, it incorporated extensive alterations to the forward fuselage, reheated Rolls Royce Avon R24R engines, a conical center body inlet cone, variable nozzle reheat and provision for weapons systems integrated with the ADC and AI.23 radar. Three P.1B prototypes were built, assigned serials XA847, XA853 and XA856.
In May 1954, WG760 and its support equipment were moved to RAF Boscombe Down for pre-flight ground taxi trials; on the morning of 4 August 1954, WG760 flew for the first time from Boscombe Down. One week later, WG760 officially achieved supersonic flight for the first time, having exceeded the speed of sound during its third flight. While WG760 had proven the P.1 design to be viable, it was plagued by directional stability problems and a dismal performance: Transonic drag was much higher than expected, and the aircraft was limited to Mach 0.98 (i.e. subsonic), with a ceiling of just 48,000 ft (14,630 m), far below the requirements.
To solve the problem and save the P.1, Petter embarked on a major redesign, incorporating the recently discovered area rule, while at the same time simplifying production and maintenance. The redesign entailed a new, narrower canopy, a revised air intake, a pair of stabilizing fins under the rear fuselage, and a shallow ventral fairing at the wings’ trailing edge that not only reduced the drag coefficient along the wing/fuselage intersection, it also provided space for additional fuel.
On 4 April 1957 the modified P.1B (XA847) made the first flight, immediately exceeding Mach 1. During the early flight trials of the P.1B, speeds in excess of 1,000 mph were achieved daily.
In late October 1958, the plane was officially presented. The event was celebrated in traditional style in a hangar at Royal Aircraft Establishment (RAE) Farnborough, with the prototype XA847 having the name ‘Skyspark’ freshly painted on the nose in front of the RAF Roundel, which almost covered it. A bottle of champagne was put beside the nose on a special rig which allowed the bottle to safely be smashed against the side of the aircraft.
On 25 November 1958 the P.1B XA847 reached Mach 2 for the first time. This made it the second Western European aircraft to reach Mach 2, the first one being the French Dassault Mirage III just over a month earlier on 24 October 1958
The first operational Skyspark, designated Skyspark F.1, was designed as a pure interceptor to defend the V Force airfields in conjunction with the "last ditch" Bristol Bloodhound missiles located either at the bomber airfield, e.g. at RAF Marham, or at dedicated missile sites near to the airfield, e.g. at RAF Woodhall Spa near the Vulcan station RAF Coningsby. The bomber airfields, along with the dispersal airfields, would be the highest priority targets in the UK for enemy nuclear weapons. To best perform this intercept mission, emphasis was placed on rate-of-climb, acceleration, and speed, rather than range – originally a radius of operation of only 150 miles (240 km) from the V bomber airfields was specified – and endurance. Armament consisted of a pair of 30 mm ADEN cannon in front of the cockpit, and two pylons for IR-guided de Havilland Firestreak air-to-air missiles were added to the lower fuselage flanks. These hardpoints could, alternatively, carry pods with unguided 55 mm air-to-air rockets. The Ferranti AI.23 onboard radar provided missile guidance and ranging, as well as search and track functions.
The next two Skyspark variants, the Skyspark F.1A and F.2, incorporated relatively minor design changes, but for the next variant, the Skyspark F.3, they were more extensive: The F.3 had higher thrust Rolls-Royce Avon 301R engines, a larger squared-off fin that improved directional stability at high speed further and a strengthened inlet cone allowing a service clearance to Mach 2.0 (2,450 km/h; the F.1, F.1A and F.2 were all limited to Mach 1.7 (2,083 km/h). An upgraded A.I.23B radar and new, radar-guided Red Top missiles offered a forward hemisphere attack capability, even though additional electronics meant that the ADEN guns had to be deleted – but they were not popular in their position in front of the windscreen, because the muzzle flash blinded the pilot upon firing. The new engines and fin made the F.3 the highest performance Skyspark yet, but this came at a steep price: higher fuel consumption, resulting in even shorter range. From this basis, a conversion trainer with a side-by-side cockpit, the T.4, was created.
The next interceptor variant was already in development, but there was a need for an interim solution to partially address the F.3's shortcomings, the F.3A. The F.3A introduced two major improvements: a larger, non-jettisonable, 610-imperial-gallon (2,800 L) ventral fuel tank, resulting in a much deeper and longer belly fairing, and a new, kinked, conically cambered wing leading edge. The conically cambered wing improved manoeuvrability, especially at higher altitudes, and it offered space for a slightly larger leading edge fuel tank, raising the total usable internal fuel by 716 imperial gallons (3,260 L). The enlarged ventral tank not only nearly doubled available fuel, it also provided space at its front end for a re-instated pair of 30 mm ADEN cannon with 120 RPG. Alternatively, a retractable pack with unguided 55 mm air-to-air rockets could be installed, or a set of cameras for reconnaissance missions. The F.3A also introduced an improved A.I.23B radar and the new IR-guided Red Top missile, which was much faster and had greater range and manoeuvrability than the Firestreak. Its improved infrared seeker enabled a wider range of engagement angles and offered a forward hemisphere attack capability that would allow the Skyspark to attack even faster bombers (like the new, supersonic Tupolev T-22 Blinder) through a collision-course approach.
Wings and the new belly tank were also immediately incorporated in a second trainer variant, the T.5.
The ultimate variant, the Skyspark F.6, was nearly identical to the F.3A, with the exception that it could carry two additional 260-imperial-gallon (1,200 L) ferry tanks on pylons over the wings. These tanks were jettisonable in an emergency and gave the F.6 a substantially improved deployment capability, even though their supersonic drag was so high that the extra fuel would only marginally raise the aircraft’s range when flying beyond the sound barrier for extended periods.
Finally, there was the Skyspark F.2A; it was an early production F.2 upgraded with the new cambered wing, the squared fin, and the 610 imperial gallons (2,800 L) ventral tank. However, the F.2A retained the old AI.23 radar, the IR-guided Firestreak missile and the earlier Avon 211R engines. Although the F.2A lacked the thrust of the later Skysparks, it had the longest tactical range of all variants, and was used for low-altitude interception over West Germany.
The first Skysparks to enter service with the RAF, three pre-production P.1Bs, arrived at RAF Coltishall in Norfolk on 23 December 1959, joining the Air Fighting Development Squadron (AFDS) of the Central Fighter Establishment, where they were used to clear the Skyspark for entry into service. The production Skyspark F.1 entered service with the AFDS in May 1960, allowing the unit to take part in the air defence exercise "Yeoman" later that month. The Skyspark F.1 entered frontline squadron service with 74 Squadron at Coltishall from 11 July 1960. This made the Skyspark the second Western European-built combat aircraft with true supersonic capability to enter service and the second fully supersonic aircraft to be deployed in Western Europe (the first one in both categories being the Swedish Saab 35 Draken on 8 March 1960 four months earlier).
The aircraft's radar and missiles proved to be effective, and pilots reported that the Skyspark was easy to fly. However, in the first few months of operation the aircraft's serviceability was extremely poor. This was due to the complexity of the aircraft systems and shortages of spares and ground support equipment. Even when the Skyspark was not grounded by technical faults, the RAF initially struggled to get more than 20 flying hours per aircraft per month compared with the 40 flying hours that English Electric believed could be achieved with proper support. In spite of these concerns, within six months of the Skyspark entering service, 74 Squadron was able to achieve 100 flying hours per aircraft.
Deliveries of the slightly improved Skyspark F.1A, with revised avionics and provision for an air-to-air refueling probe, allowed two more squadrons, 56 and 111 Squadron, both based at RAF Wattisham, to convert to the Skyspark in 1960–1961. The Skyspark F.1 was only ordered in limited numbers and served only for a short time; nonetheless, it was viewed as a significant step forward in Britain's air defence capabilities. Following their replacement from frontline duties by the introduction of successively improved Skyspark variants, the remaining F.1 aircraft were employed by the Skyspark Conversion Squadron.
The improved F.2 entered service with 19 Squadron at the end of 1962 and 92 Squadron in early 1963. Conversion of these two squadrons was aided by the of the two-seat T.4 and T.5 trainers (based on the F.3 and F.3A/F.6 fighters), which entered service with the Skyspark Conversion Squadron (later renamed 226 Operational Conversion Unit) in June 1962. While the OCU was the major user of the two-seater, small numbers were also allocated to the front-line fighter squadrons. More F.2s were produced than there were available squadron slots, so later production aircraft were stored for years before being used operationally; some of these Skyspark F.2s were converted to F.2As.
The F.3, with more powerful engines and the new Red Top missile was expected to be the definitive Skyspark, and at one time it was planned to equip ten squadrons, with the remaining two squadrons retaining the F.2. However, the F.3 also had only a short operational life and was withdrawn from service early due to defence cutbacks and the introduction of the even more capable and longer-range F.6, some of which were converted F.3s.
The introduction of the F.3 and F.6 allowed the RAF to progressively reequip squadrons operating aircraft such as the subsonic Gloster Javelin and retire these types during the mid-1960s. During the 1960s, as strategic awareness increased and a multitude of alternative fighter designs were developed by Warsaw Pact and NATO members, the Skyspark's range and firepower shortcomings became increasingly apparent. The transfer of McDonnell Douglas F-4 Phantom IIs from Royal Navy service enabled these much longer-ranged aircraft to be added to the RAF's interceptor force, alongside those withdrawn from Germany as they were replaced by SEPECAT Jaguars in the ground attack role.
The Skyspark's direct replacement was the Tornado F.3, an interceptor variant of the Panavia Tornado. The Tornado featured several advantages over the Skyspark, including far larger weapons load and considerably more advanced avionics. Skysparks were slowly phased out of service between 1974 and 1988, even though they lasted longer than expected because the definitive Tornado F.3 went through serious teething troubles and its service introduction was delayed several times. In their final years, the Skysparks’ airframes required considerable maintenance to keep them airworthy due to the sheer number of accumulated flight hours.
General characteristics:
Crew: 1
Length: 51 ft 2 in (15,62 m) fuselage only
57 ft 3½ in (17,50 m) including pitot
Wingspan: 34 ft 10 in (10.62 m)
Height: 17 ft 6¾ in (5.36 m)
Wing area: 474.5 sq ft (44.08 m²)
Empty weight: 31,068 lb (14,092 kg) with armament and no fuel
Gross weight: 41,076 lb (18,632 kg) with two Red Tops, ammunition, and internal fuel
Max. takeoff weight: 45,750 lb (20,752 kg)
Powerplant:
2× Rolls-Royce Avon 301R afterburning turbojet engines,
12,690 lbf (56.4 kN) thrust each dry, 16,360 lbf (72.8 kN) with afterburner
Performance:
Maximum speed: Mach 2.27 (1,500 mph+ at 40,000 ft)
Range: 738 nmi (849 mi, 1,367 km)
Combat range: 135 nmi (155 mi, 250 km) supersonic intercept radius
Range: 800 nmi (920 mi, 1,500 km) with internal fuel
1,100 nmi (1,300 mi; 2,000 km) with external overwing tanks
Service ceiling: 60,000 ft (18,000 m)
Zoom ceiling: 70,000 ft (21,000 m)
Rate of climb: 20,000 ft/min (100 m/s) sustained to 30,000 ft (9,100 m)
Zoom climb: 50,000 ft/min
Time to altitude: 2.8 min to 36,000 ft (11,000 m)
Wing loading: 76 lb/sq ft (370 kg/m²) with two AIM-9 and 1/2 fuel
Thrust/weight: 0.78 (1.03 empty)
Armament:
2× 30 mm (1.181 in) ADEN cannon with 120 RPG in the lower fuselage
2× forward fuselage hardpoints for a single Firestreak or Red Top AAM each
2× overwing pylon stations for 2.000 lb (907 kg each)
for 260 imp gal (310 US gal; 1,200 l) ferry tanks
The kit and its assembly:
This build was a submission to the “Hunter, Lightning, Canberra” group build at whatifmodellers.com, and one of my personal ultimate challenges – a project that you think about very often, but the you put the thought back into its box when you realize that turning this idea into hardware will be a VERY tedious, complex and work-intensive task. But the thematic group build was the perfect occasion to eventually tackle the idea of a model of a “side-by-side engine BAC Lightning”, a.k.a. “Flatning”, as a rather conservative alternative to the real aircraft’s unique and unusual design with stacked engines in the fuselage, which brought a multitude of other design consequences that led to a really unique aircraft.
And it sound so simple: take a Lightning, just change the tail section. But it’s not that simple, because the whole fuselage shape would be different, resulting in less depth, the wings have to be attached somewhere and somehow, the landing gear might have to be adjusted/shortened, and how the fuselage diameter shape changes along the hull, so that you get a more or less smooth shape, was also totally uncertain!
Initially I considered a MiG Ye-152 as a body donor, but that was rejected due to the sheer price of the only available kit (ModelSvit). A Chinese Shenyang J-8I would also have been ideal – but there’s not 1:72 kit of this aircraft around, just of its successor with side intakes, a 1:72 J-8II from trumpeter.
I eventually decided to keep costs low, and I settled for the shaggy PM Model Su-15 (marketed as Su-21) “Flagon” as main body donor: it’s cheap, the engines have a good size for Avons and the pen nib fairing has a certain retro touch that goes well with the Lightning’s Fifties design.
The rest of this "Flatning" came from a Hasegawa 1:72 BAC Lightning F.6 (Revell re-boxing).
Massive modifications were necessary and lots of PSR. In an initial step the Flagon lost its lower wing halves, which are an integral part of the lower fuselage half. The cockpit section was cut away where the intake ducts begin. The Lightning had its belly tank removed (set aside for a potential later re-installation), and dry-fitting and crude measures suggested that only the cockpit section from the Lightning, its spine and the separate fin would make it onto the new fuselage.
Integrating the parts was tough, though! The problem that caused the biggest headaches: how to create a "smooth" fuselage from the Lightning's rounded front end with a single nose intake that originally develops into a narrow, vertical hull, combined with the boxy and rather wide Flagon fuselage with large Phantom-esque intakes? My solution: taking out deep wedges from all (rather massive) hull parts along the intake ducts, bend the leftover side walls inwards and glue them into place, so that the width becomes equal with the Lightning's cockpit section. VERY crude and massive body work!
However, the Lightning's cockpit section for the following hull with stacked engines is much deeper than the Flagon's side-by-side layout. My initial idea was to place the cockpit section higher, but I would have had to transplant a part of the Lightning's upper fuselage (with the spine on top, too!) onto the "flat" Flagon’s back. But this would have looked VERY weird, and I'd have had to bridge the round ventral shape of the Lightning into the boxy Flagon underside, too. This was no viable option, so that the cockpit section had to be further modified; I cut away the whole ventral cockpit section, at the height of the lower intake lip. Similar to my former Austrian Hasegawa Lightning, I also cut away the vertical bulkhead directly behind the intake opening - even though I did not improve the cockpit with a better tub with side consoles. At the back end, the Flagon's jet exhausts were opened and received afterburner dummies inside as a cosmetic upgrade.
Massive PSR work followed all around the hull. The now-open area under the cockpit was filled with lead beads to keep the front wheel down, and I implanted a landing gear well (IIRC, it's from an Xtrakit Swift). With the fuselage literally taking shape, the wings were glued together and the locator holes for the overwing tanks filled, because they would not be mounted.
To mount the wings to the new hull, crude measurements suggested that wedges had to be cut away from the Lightning's wing roots to match the weird fuselage shape. They were then glued to the shoulders, right behind the cockpit due to the reduced fuselage depth. At this stage, the Lightning’s stabilizer attachment points were transplanted, so that they end up in a similar low position on the rounded Su-15 tail. Again, lots of PSR…
At this stage I contemplated the next essential step: belly tank or not? The “Flatning” would have worked without it, but its profile would look rather un-Lightning-ish and rather “flat”. On the other side, a conformal tank would probably look quite strange on the new wide and flat ventral fuselage...? Only experiments could yield an answer, so I glued together the leftover belly bulge parts from the Hasegawa kit and played around with it. I considered a new, wider belly tank, but I guess that this would have looked too ugly. I eventually settled upon the narrow F.6 tank and also used the section behind it with the arrestor hook. I just reduced its depth by ~2 mm, with a slight slope towards the rear because I felt (righteously) that the higher wing position would lower the model’s stance. More massive PSR followed….
Due to the expected poor ground clearance, the Lightning’s stabilizing ventral fins were mounted directly under the fuselage edges rather than on the belly tank. Missile pylons for Red Tops were mounted to the lower front fuselage, similar to the real arrangement, and cable fairings, scratched from styrene profiles, were added to the lower flanks, stretching the hull optically and giving more structure to the hull.
To my surprise, I did not have to shorten the landing gear’s main legs! The wings ended up a little higher on the fuselage than on the original Lightning, and the front wheel sits a bit further back and deeper inside of its donor well, too, so that the fuselage comes probably 2 mm closer to the ground than an OOB Lightning model. Just like on the real aircraft, ground clearance is marginal, but when the main wheels were finally in place, the model turned out to have a low but proper stance, a little F8U-ish.
Painting and markings:
I was uncertain about the livery for a long time – I just had already settled upon an RAF aircraft. But the model would not receive a late low-viz scheme (the Levin, my mono-engine Lightning build already had one), and no NMF, either. I was torn between an RAF Germany all-green over NMF undersides livery, but eventually went for a pretty standard RAF livery in Dark Sea Grey/Dark Green over NMF undersides, with toned-down post-war roundels.
A factor that spoke in favor of this route was a complete set of markings for an RAF 11 Squadron Lightning F.6 in such a guise on an Xtradecal set, which also featured dayglo orange makings on fin, wings and stabilizers – quite unusual, and a nice contrast detail on the otherwise very conservative livery. All stencils were taken from the OOB Revell sheet for the Lightning. Just the tactical code “F” on the tail was procured elsewhere, it comes from a Matchbox BAC Lightning’s sheet.
After basic painting the model received the usual black ink washing, some post-panel-shading and also a light treatment with graphite to create soot strains around the jet exhausts and the gun ports, and to emphasize the raised panel lines on the Hasegawa parts.
Finally, the model was sealed with matt acrylic varnish and final bits and pieces like the landing gear and the Red Tops (taken OOB) were mounted.
A major effort, and I have seriously depleted my putty stocks for this build! However, the result looks less spectacular than it actually is: changing a Lightning from its literally original stacked engine layout into a more conservative side-by-side arrangement turned out to be possible, even though the outcome is not really pretty. But it works and is feasible!
+++ 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 T-34, a Soviet medium tank, had a profound and lasting effect on the field of tank design. At its introduction in 1940, the T-34 possessed an unprecedented combination of firepower, mobility, protection and ruggedness. Its 76.2 mm high-velocity tank gun provided a substantial increase in firepower over any of its contemporaries while its well-sloped armour was difficult to penetrate by most contemporary anti-tank weapons. Although its armour and armament were surpassed later in the war, it has often been credited as the most effective, efficient and influential tank design of the Second World War.
The T-34 was the mainstay of Soviet armoured forces throughout the Second World War. Its design allowed it to be continuously refined to meet the constantly evolving needs of the Eastern Front: as the war went on it became more capable, but also quicker and cheaper to produce. Soviet industry would eventually produce over 80,000 T-34s of all variants, allowing steadily greater numbers to be fielded as the war progressed despite the loss of tens of thousands in combat against the German Wehrmacht. Replacing many light and medium tanks in Red Army service, it was the most-produced tank of the war, as well as the second most produced tank of all time (after its successor, the T-54/55 series). T-34 variants were widely exported after World War II, and even as recently as 2010, the tank has seen limited front-line service with several developing countries
One of the unusual and rather unknown operators of the T-34 was Austria. 25 tanks (some sources claim 27 or even 37) of the late T-34/85 variant came as a gift from (well, they were actually left behind by) the Soviet Union in 1955 when the Red Army left the country, meaning that the Austrian Bundesheer was re-established. These vehicles became the young army's initial backbone, until more modern equipment (e. g. M41 and M47 tanks procured from the USA and AMX-13/75 tanks from France) replaced them in frontline service. Due to their ruggedness and simplicity, they were kept in service, though - primarily for training, and some vehicles were in the 1970s integrated into hidden bunkers, defending strategically vital "security space zones".
A revival of the Austrian T-34/85 fleet came in the late Sixties, though, when the Austrian Army recognized a lack in long range attack capabilities (at 1.000 m range and more) against hardened targets like enemy tanks, paired with high mobility and low costs, similar to the German Jagdpanzer profile from WWII. At that time, Austria operated roundabout 50 Charioteer tanks with 83.4 mm guns in this role, but these British vehicles were outdated and needed a timely replacement.
Another limiting factor were severe budget restrictions. The eventual solution came from the Austrian company Saurer: a relatively simple conversion of the indigenous Saurer APC, armed with a version of the French AMX-13's FL-12 oscillating turret, armed with a powerful 105mm cannon, which had just become available in an export version. However, in order to bridge the new tank hunter's development time and quickly fill the defense gap, the Austrian T-34/85s were checked whether it was possible to modernize them with the new turret, too.
The first conversion was carried out by Saurer in 1963 and proved to be successful. Since the light FL-12 turret had a smaller bearing diameter than the old T-34/85 turret, the integration into the hull went straightforward with the help of a simple adapter ring. What made the conversion even simpler was the fact that the FL-12, with its integrated cannon and an automated loading system, was a complete, self-sufficient unit.
The French turret was only lightly armoured, since the tank was not supposed to engage heavily-armed enemies at close range. The turret's front armour protected the crew from 20mm armour-piercing rounds over its frontal arc, while all-round protection was against small arms bullets only. The commander was seated on the left of the turret and the gunner on the right. The commander was provided with seven periscopes and a periscopic sight. The commander's infrared night sight had a magnification of x6. The gunner had two observation periscopes, a telescopic sight and a one-piece lifting and swiveling hatch cover. Due to the design of the oscillating turret, all sights were always linked to the main and secondary armament (a standard NATO machine gun). For engaging targets at night, an infrared periscopic sight was provided for the commander. In order to simplify and lighten the tank, the T-34’s bow machine gun in the hull was deleted and its opening faired over and the crew was reduced to three.
The 105 mm gun could penetrate 360 mm of armour, and the internal magazines of 2x 6 shots allowed a very high rate of fire (up to 12 shots per minute), even though a crew member had to leave the tank in order to fill the magazines up again from the outside. Once the gun had been fired the empty cartridge cases were ejected out of the rear of the turret through a trapdoor hinged on the left. Beyond the 12 rounds in the turret, a further 42 rounds were stored in the tank's hull, primarily in a stowage rack for 30 shots where the former second crew member in the front hull had been placed, and a further twelve rounds in magazines at the turret’s base.
The T-34/85’s engine and transmission were not changed, since an update was beyond the conversion budget limit, but lighter “skeleton” wheels from Czech T-34 post-war production were introduced, so that the modified tank weighed roundabout 30 tons, 2 less than the standard T-35/85.
After highly successful field tests with the prototype in the course of 1963 and 1964, a further conversion program for 16 tanks was approved and carried out until early 1965. The modified tanks received the official designation T-34/105Ö and allocated to two tank battalions. Most of the time these tanks were only used for training purposes, though, in preparation of the arrival of the "real" tank hunter, the SK-105 "Kürassier" (Cuirassier) with almost identical weapon systems. The SK-105’s first prototype was eventually ready in 1967 and delivery of pre-production vehicles commenced in 1971, but teething troubles and many detail problems delayed the type's quick and widespread introduction. Lighter and much more agile than the vintage T-34s, it became a big success and was produced in more than 700 specimen, almost 300 of them for the Austrian Army and the rest for export (Argentina, Bolivia, Botswana, Brazil, Morocco and Tunisia). In consequence, the small T-34/105Ö fleet was soon retired and by 1976, when the Kürassier was in service and other, heavy tanks had become available, none of the converted tanks was still active anymore. Nevertheless, a few Austrian T-34s that had become part of the hidden bunker installations soldiered secretly on, the last ones were dug out of their positions and scrapped in 2007(!).
Specifications:
Crew: Three (commander, gunner, driver)
Weight: 29.7 t combat load
Length: 8.21 m (26 ft 10 ½ in) with turret forward
6.10 m (19 ft 11 ¾ in) hull only
Width: 3.00 m (9 ft 10 in)
Height: 2,74 m (8 ft 11 ½ in)
Suspension: Christie
Ground clearance: 0.4 m (16 in)
Fuel capacity: eight internal tanks, total capacity of 545 l (145 U.S. gal; 118 imp gal),
plus up to four external fuel drums à 90 l each (24 U.S. gal; 19.5 imp gal)
Engine:
Model V-2-34M 38.8 l V12 Diesel engine with 520 hp (370 kW) at 1.800 rpm
Transmission:
5 forward and 1 reverse gears
Armor:
16 - 45 mm steel (plus composite armour in the turret)
Performance:
Speed:
- Maximum, road: 58 km/h (36 mph)
- Cross country: up to 40 km/h (28 mph)
Operational range: 250 km (155) on streets with internal fuel only,
up to 330 km (250 mi) with four additional fuel drums
Power/weight: 17.5 hp/t
Armament:
1× 105 mm CN 105-57 rifled gun with a total 54 rounds, 12 of them ready in the turret's magazines
1× 7.62mm (0.3") co-axial NATO machine gun with 2.000 rounds
2× 2 smoke grenade dischargers
The kit and its assembly:
This weird, fictional combo was originally spawned by an Israeli idea: some vintage M4 Sherman tanks had been outfitted with the AMX-13's swiveling turrets and armed with French CN-75-50 75mm a cannon, creating the so-called "Isherman". I kept this concept in the back of my mind for a long time, with the plan to build one some day.
Then I came a couple of weeks ago across a picture on FlickR that showed a T-34/85 with Austrian markings. At first I thought that it had been a fictional museum piece in fake markings, but upon some legwork I found out that Austria had actually operated the T-34!
So, why not combine both ideas into a new and fictional one...? The rest was straightforward kitbashing: the FL-12 turret with a 105 mm cannon came from a Heller AMX-13 (a shaggy thing with dubious fit, but it was cheap) and for the chassis I tried the relatively new Zvezda T-35/85. The latter is actually a very crisp snap-fit kit, just some light flash here and there. Detail and proportions are very good, though, as well as fit. I was only surprised by the construction of the tracks, because it is a different approach from both of the traditional vinyl tracks or IP track segments. Instead, you get complete, rather thin and delicate IP tracks, and Zvezda expects the builder to bend them around the wheels and stick them between the wheels' halves during the construction process. You actually have to mount the “inner” half of the wheels first, then the track is attached to a locator pin on one of the main wheels, bent into shape, and finally the wheels' “outer” halves are added. Sounds complicated, and it actually is, and it also makes painting the whole running gear quite difficult, but it works – even though the result is IMHO not better than the traditional solutions.
The AMX-13 turret’s integration was easier than expected. Building the turret was a little complicated, because all side walls are separate and there are no locator pins or other aides for orientation. Some PSR became necessary to fill some minor gaps, but nothing dramatic. Mounting the AMX-13 turret to the T-34 hull was made easy through a very convenient design detail of the Zvezda kit: the T-34 comes with a separate turret ring that could be used as an adapter for the Heller turret. Three ejection/sprue residues inside of the ring could be used as a foundation for the AMX-13 turret, and the turret’s lower half/ring was, after some sanding to reduce the gap between the turret and the hull, was also glued onto the adapter. Worked like a charm, and the resulting combo looks very natural!
In order to improve the turret’s look I added a cloth seal between the lower and the upper, oscillating turret section, simulated with paper tissue drenched in thinned white glue (OOB the turret cannot be moved vertically at all). A similar seal was added at the barrel’s base.
Other changes were only minimal: the machine gun port in the front hull was sanded away and faired over, and I omitted the spare track links attached to the front hull. For a modernized look I gave the tank an additional pair of front lights as well as stoplights at the rear, scratched from styrene bits.
Painting and markings:
Basically a very simple affair, because there is ONLY one possible livery and color that suits an Austrian Bundesheer vehicle or item from the Seventies: RAL 7013 (Braungrau). This is a very ugly tone, though, "greenish, fresh mud" describes it well: a dull, brownish olive drab, but definitively not a green (like the omnipresent NATO tone Gelboliv RAL 6014, which was used by the German Bundeswehr until the standardized NATO three-tone camouflage was introduced around 1984). I organized a rattle can of this special color, since the tank model would receive a simple, uniform livery.
Due to the kit's , err, unique running gear construction, painting became a little complicated. I had to paint the hull and the (still) separate wheel parts in advance, so that the pre-painted elements could be assembled around the tracks (see above). The tracks themselves were painted with a cloudy mix of iron metallic, black and leather brown (Revell 99, 8 and 84). The turret was painted separately.
After the kit’s major sections had been assembled they received a light wash with a mix of highly thinned black with some red brown added, and the washing was immediately dabbed off of the surfaces so that most of the pigments ended up in recesses and around details, while the rest received an blurry, light dirt filter.
Once dry, I applied the decals. The tiny Austrian roundels come from a generic TL Modellbau sheet (never expected to find any use for them!), the tactical code comes from another tank kit sheet. In order to add some more highlights I also added some small, white markings on the fenders.
Then I gave the model an overall dry-brushing treatment with olive drab, medium grey and finally some ochre, just emphasizing details and edges.
Since the uniform livery appeared a bit dull to me, I decided to add a few camouflage nets to the hull, which also hide some weak points of the Zvezda kit, e.g. the missing rails along the hull. The nets were created from gauze bandages: small pieces (~1”x1”) of the material were dipped into a mix of white glue and olive drab acrylic paint and then carefully placed on hull, turret and barrel. Once dry, they were also dry-brushed.
As final steps, the kit was sealed with matt acrylic varnish (rattle can again) and I dusted the lower areas with a greyish-brown pigment mix, simulating dust and some mud crusts.
What started as a weird idea turned into a very conclusive what-if project – in fact, the T-34 with the French FL-12/44 turret does not look bad at all, and the Austrian colors and markings make this piece of fiction IMHO very convincing. Adding the camouflage nets was also a good move. They hide some of the details (e.g. the omitted bow machine gun station), but they liven up the rather clean and bleak exterior of the tank. I am positively surprised how good the T-34/105Ö looks!
+++ 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 Dassault/Dornier Alpha Jet is a light attack jet and advanced trainer aircraft co-manufactured by Dornier of Germany and Dassault-Breguet of France. In the early 1960s, European air forces began to consider their requirements for the coming decades. One of the results was the emergence of a new generation of jet trainers. The British and French began a collaboration on development of what was supposed to be a supersonic jet aircraft in two versions: trainer and light attack aircraft. The result of this collaboration, the SEPECAT Jaguar, proved to be an excellent aircraft, but its definition had changed in the interim, and the type emerged as a full-sized, nuclear-capable strike fighter, which two-seat variants were used for operational conversion to the type, not for the general training.
This left the original requirement unfulfilled and so the French began discussions with West Germany for collaboration. A joint specification was produced in 1968. The trainer was now subsonic, supersonic trainers having proven something of a dead end. A joint development and production agreement was signed in July 1969 which indicated that the two nations would buy 200 machines, each assembled in their own country.
The Luftwaffe decided to use the Alpha Jet mainly in the light strike role, preferring to continue flight training in the United States on American trainer types instead of performing training in cloudy and crowded Germany. The first production German Alpha Jet performed its maiden flight on 12 April 1978, with deliveries beginning in March 1979. This version was designated the Alpha Jet A (the "A" standing for Appui Tactique or "Tactical Strike") or Alpha Jet Close Support variant. The Luftwaffe obtained 175 machines up to 1983, with the type replacing the Fiat G91R/3. Manufacture of Alpha Jet subassemblies was divided between France and Germany, with plants in each country performing final assembly and checkout. The different avionics fit made French and German Alpha Jets easy to tell apart, with French machines featuring a rounded-off nose and German machines featuring a sharp, pointed nose.
Even though the Alpha Jet A was suitable in the ground attack role and had even been tested in aerial combat against helicopters in 1979, the German Luftwaffe decided in the mid-80ies that – facing the Cold War threat from the east – a more powerful but still economic plane for the close attack role, esp. against hardened ground targets and attack helicopters like the Mi-24 would be needed. Even though such "Alternate Close Support" versions of the Alpha Jet were available at that time, even though these were modified two-seaters. Such planes were bought by Cameroon and Egypt, but from the German Luftwaffe a specialized, more capable plane with a higher strike and survival potential was requested.
In 1986, Dornier developed a respective specialized version, called the Alpha Jet C (for "combat"). This plane was heavily modified, optimized for the ground attack role. It featured a new, single-seated nose section with an armoured cockpit in a much higher position than on the original two-seater. The Alpha jet C version's prominent, pointed nose quickly gave it among its test pilots the nickname "Nasenbär" (Coati).
The new space was used for avionics and an internal Oerlikon 35mm cannon – a variant of the same cannon used in the Gepard anti aircraft tank, firing armour piercing shells with a muzzle velocity of 1,440 m/s (4,700 ft/s) and a range of 5.500m. Avionics includecd SAGEM ULISS 81 INS, a Thomson-CSF VE-110 HUD, a TMV630 laser rangefinder in a modified nose and a TRT AHV 9 radio altimeter, with all avionics linked through a digital databus.
New wings were developed, with a thicker profile and less sweep, and non-jettisonable wing tip tanks as well as two more weapon hardpoints (for a total of six, plus one under the fuselage) added. The landing gear was reinforced for a higher TOW and operation on improvised runways. Fuselage and tail externally looked much the same as the original Alpha Jet A, but internally most structures were reinforced and technical modules placed in new positions.
The C version was from the start powered by two more powerful Larzac 04-C20 turbofans which would also be used in an update for the Luftwaffe’s Alpha Jet As. The hydraulic system was doubled, so that both engines could run separately, and kevlar and titanium armour plating added to vital areas around the lower hull.
The first prototype 98+52 made its maiden flight at Friedrichshafen on 1st of June 1988. It was officially allocated to the JaboG 43 in Oldenburg, but actually spent almost all the time at the Luftwaffe’s Waffentechnische Dienststelle (Flight test center) WTD 61 in Manching near Munich, where it underwent a thorough testing program. More than once the prototype was transferred to Beja, Portugal, for weapon tests and training, as well as direct comparison with the standard Alpha Jet A and other NATO planes. A second airframe was built in 1987 but only used for static tests, system integration and finally damage resilience tests, after which it was written off and scrapped.
While the Alpha Jet C showed high agility at low level and a high survival potential in a hostile battlefield environment, the prototype remained a one-off. In the end, the German Luftwaffe did not want to add another type to its arsenal, despite its similarity with the standard Alpha Jet. Export chances for such a specialized, yet light aircraft were considered as low, since modified Alpha Jet versions were already available and other planes like the AMX or BAe Hawk offered more versatility, and were simply more up to date.
Hence, further development was stopped in September 1989, also under the influence of political changes and the breakdown of the Eastern Block. Even though 98+52 was kept at Manching as a test aircraft for various tasks, the plane was eventually lost in a crash due to hydraulic failure on 3rd of March 1993 – the pilot escaped safely, but 98+52 totally written off.
General characteristics:
Crew: 1
Length: 12.60 m (41 ft 4 in)
Wingspan: 10.73 m (35 ft 2 1/2 in)
Height: 4.24 m (13 ft 11 in)
Wing area: 213.7 ft² (19.85 m²)
Airfoil: NACA 23015 (modified) at root, NACA 4412 (modified) at tip
Empty weight: 3.680 kg (8.105 lbs)
Loaded weight: 5.900 kg (13.000 lbs)
Max. takeoff weight: 8.200 kg (18.060 lbs)
Powerplant: 2 × SNECMA Turbomeca Larzac 04-C20 turbofans, 14,12 kN (3.176 lbs) each
Performance
Maximum speed: 860 km/h (465 knots, 536 mph)
Stall speed: 167 km/h (90 knots, 104 mph) (flaps and undercarriage down)
Combat radius: 610 km (329 nmi, 379 mi) lo-lo-lo profile, w. underwing weapons incl. two drop tanks
Ferry range: 2,940 km (1,586 nmi, 1,827 mi)
Service ceiling: 14,630 m (48,000 ft)
Rate of climb: 57 m/s (11,220 ft/min)
Armament
1× 35 mm (1.38 in) Oerlikon KDA cannon w/150 rds under the lower forward fuselage, offset to starport side.
Seven hardpoints (one under fuselage, three under each wing) for a total external load of up to 3.085 kg (6.800 lbs), including AGM-65 Maverick, Matra rocket pods with 18× SNEB 68 mm rockets each, a variety of bombs (such as the Hunting BL755 cluster bombs) or Drop tanks for extended range, and AIM-9 Sidewinder or ASRAAM for self-defence
The kit and its assembly
Yes, another whif, and a modern type, too. The idea came when I found a pair of vintage wings from a vintage Matchbox BAC Strikemaster in good shape and thought "Well, where could these fit...?" Being a fan of the Su-25 I considered building something similar from scratch und using these 30 year old parts.
The Alpha Jet has a basically similar layout, and the wings would match in size. Then, the "new" plane should become a dedicated single-seater, not simply a two-seater with a covered rear cockpit. Browsing through the kit stack I found a A-4F from Revell, and its nose section turned out to be an almost perfect fit for the Alpha Jet fuselage (the vintage Heller kit).
Fitting these parts together required some major surgery and putty work, but the result looks quite convincing. Other additions are a Matchbox pilot figure and some cockpit details, a nose cone from a Fiat G.91 R/3 as an integral laser rangefinder housing, the Strikemaster wings, a modified landing gear (main wheels from the Skyhawk, front wheel from an IAI Kfir) and the armament in the form of the gun, seven hardpoints and the mixed ordnance from the German Luftwaffe arsenal - everything collected from the junkyard.
Painting
While German Luftwaffe machines can look rather boring, various camouflage trials have been conducted during the 80ies and 90ies for the F-4F, Alpha Jet and Tornado fleet. Esp. Phantom IIs saw extensive experiments for air superiority and ground attack paint schemes - and these schemes carried inofficial names like "Milchkuh" (Dairy Cow), "Polizeimühle" (Police Jalopy) or "Disco Bomber".
The whiffy Alpha Jet was a nice opportunity to incorporate one of these experimental schemes, and I settled for something which was applied to F-4F '37+07' and inofficially dubbed "Wolkenmaus" (Cloud Mouse). The Alpha Jet is a good subject, since its stepped side structure with engine nacelles and its spine tunnel is similar to the Phantom II, so that the cammo concept could be easily copied.
Anyway, the authentic "Wolkenmaus" colours are supposed to be (and what I used on the kit)...
On the upper sides:
● RAL 6014 Gelboliv (~FS 34087; Olive Drab, Testors 1711)
● RAL 7012 Basaltgrau (~FS 36152; Humbrol 27)
● RAL 9005 Tiefschwarz, even though I rather believe it to be RAL 7021 Schwarzgrau (darker than FS 36081; Humbrol 182)
Flanks::
● Mix of 2/3 RAL 7035 Lichtgrau + 1/3 RAL 7000 Fehgrau (~FS36473; Aircraft Grey, Testors 1731)
Undersides:
● Mix of 5/6 RAL 7035 Lichtgrau + 1/6 RAL 7000 Fehgrau (~RLM 63; Lichtgrau, Testors 2077)
The tones are just approximations, since I did not want to get original tones just for one project. Hey, it's just a model kit!
The landing gear and its wells were painted in aluminum, the respective covers' inside with Humbrol 81 (Olive Yellow) in a primer finish for some contrast. Cockpit interior as well as the air intakes were kept in in Light Gull Grey (FS 36640, Humbrol 129). The complex paint scheme was applied, as per usual, by brush and hand. The kit received a light black ink wash and some dry painting with lighter tones - the model was not supposed to look dirty, only a bit used.
Decals were scrapped together. JaboG 43 emblems and warning signs were taken from the original Heller decal sheet. The national insignia were taken from a Revell PAH-2 kit, the registration '98+52' was puzzled together with single digits from an aftermarket decal sheet from TL Modellbau. AFAIK, '98+52' has not been used yet by the Luftwaffe, which designates its test aircraft in the 98+XX and 99+XX range. A "true" and active Alpha Jet would have received a 40+XX or 41+XX.
Finally, everything was sealed under a water-based/acryllic matte coat - the Testors colours proved to be very touchy to the Humbrol varnish I normally use.
In the end, I achieved what I wanted, even though not truly perfect. But the kit looks like an 'analogue' Su-25, and actually the whiffy Alpha Jet C reminds much of the pre-Su-25 concepts: the SPB and subsequent LSSh/T-8 attack aircraft?
+++ 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 +++
BEWARE: nothing you see here is real, even though many conversions and their respective background stories were built upon historical facts.
The Messerschmitt Me 510 was a further development of the Me 410 Hornisse ("Hornet"), a German heavy fighter and Schnellbomber used by the Luftwaffe during World War II. The 410 itself had a troubled start, because it essentially had only been a straightforward modification of the Me 210, which had suffered from serious stability flaws and had a bad reputation among its crews.
The 410 handled bettr but did not show much improvement in performance, though. Me 410 deliveries began in January 1943, two years later than the original plan had called for, and continued until September 1944, by which point a total of 1.160 of all versions had been produced by Messerschmitt Augsburg and Dornier München. When it arrived, it was liked by its crews, even though its performance was not enough to protect it from the swarms of high performance allied fighters they faced.
Still not giving up on the original construction (and with the jigs and tools still available), Messerschmitt started in early 1944 with research into further means of improving the Me 410's performance. One direction was the addition of one or two jets under the fuselage as boosters for combat situations.
Another design path, which eventually led to the Me 510, was the development of turboprop and compound engines as propulsion options, which were based on the respective pure jet engines but offered much better performance and fuel economy than the pure jets. It would also be the more efficient solution compared to added turbojets for pure piston planes, since no dead weight had to be carried, and the overall system was less complex than a mixed powerplant system.
This turboprop concept, as best compromise between performance and short-term readiness for service, was chosen and the modified aircraft, called Messerschmitt Me 510, came to be. The design target was to outperform the Me 410 with as little change to the overall construction as possible, so that old tooling could be used for new aircraft cells. Alternatively, old aircraft should potentially be converted to the improved standard.
Core of the new development was the compact HeS 021 turboprop, a PTL development of the HeS 011 jet engine which was also planned for Focke Wulfs FW P.0310226-127 fighter (a turboprop version of the light 'Flitzer' day fighter). This engine was theoretically to deliver up to 3.300hp (2.426 kw) shaft output, plus 1.100kg (2.424 lb) additional thrust, even though serial types would produce less power under the aspect of reliability.
In order to incorporate this engine into the modified Me 410 a new main wing with laminar profile and new engine nacelles had to be designed. The HeS 021sat in the front part of the engine nacelles above the wings, driving four-bladed propellers. The landing gear retracted into the nacelle's lower section, rotating 90°, much like the Me 410, with the exhaust running above the landing gear wells.
In order to improve directional stability further, the tail surfaces were slightly enlarged, receiving characteristic, square tips. The fuselage was more or less taken from the original Me 410, since it offered a very good field of view and appropriate aerodynamics. With this package, the idea of retrofitting former Me 410 cells was kept, even though later flight tests showed that some more detail modifications had to be made. Most of these concerned the internal structures, the most obvious external change was the nose section, where the original glazing had to be reinforced and finally replaced by solid material – an experience similar to the modification from Douglas’ piston-driven XB-42 to the faster, jet-driven XB-43 of the same era.
Maiden flight of the first prototype took place in Augsburg on 6th of May 1945, with little problems. As benchmark, the Me 410's maximum speed was 625 km/h (388 mph), a cruise speed of 579 km/h (360 mph) and a combat range of 2.300 km (1,400 mi) with up to 1.000 kg (2,204 lbs) of disposable stores carried in- and externally.
The overall flying characteristics of the Me 410 did not change much, but rate of climb and top speed were considerably improved. In level flight, the third prototype Me 510 V3 reached a top speed of 812 km/h (504 mph), and even the serial version with added armament and equipment easily reached 750 km/h (465 mph) top speed and a cruising speed with no external stores of 650 km/h (405 mph). At its time, the Me 510, which quickly received the rather inofficial nickname "Bremse" (Horsefly), was superior to its pure piston engine and turbojet rivals, even though it was clear that the turboprop was only a preliminary solution.
Due to its high speed and under the pressure of Allied bomber raids, the Me 510 was primarily used as a Zerstörer against daylight bombers. Many aircraft received additional weapons, both directly incorporated at the factory but also as field accessories. Popular modifications included two extra 30mm guns (MK 108 or 103) in the bomb bay, or provisions for guided and unguided air to air missiles. A camera equipment package (Rüstsatz 'U3') allowed the fast aircraft to be used for daylight reconnaissance.
Many equipment packages from the earlier Me 410 could be fitted, too, including the massive 50mm BK 5 auto cannon against allied bomber groups. Initially, this package (‘U4’ Rüstsatz) comprised the original autocannon which fired at 45 RPM, with 21 shells in a drum magazine.
This weapon soon was replaced by the even more effective MK 214 B gun of 55mm caliber (Rüstsatz 'U5'). The BK 214 B fired at 180 RPM and proved to be a highly effective weapon at long ranges, outside of the bombers’ defensive armament range. As a drawback the heavy system (the gun plus the ammunition belt with 96 shells weighed 1.124 kg/2.475 lb) filled the whole internal bomb bay and precluded heavy external stores. Therefore, the 13mm machine guns in the nose were frequently removed in order to save weight, sometimes the weapons in the side barbettes, too. But: a single hit with one of the 1.54kg (3.4 lb) shells was enough to bring down a four-engined bomber, so that the fast Me 510 with this weapon became a serious threat in the course of late 1946.
510 general characteristics:
Crew: 2
Length: 42 ft (12,60 m)
Wingspan: 49 ft (14.69 m)
Height: 13 ft 1½ in (4.0 m)
Wing area: 480.11 ft² (44.78m²)
Empty weight: 10.665 lb (4.842 kg)
Loaded weight: 14.405 lb (6.540 kg)
Max. take-off weight: 18.678 lb (8.480 kg)
Maximum speed: 790 km/h (490 mph) at 7.200m (23.500 ft)
Range: 1.400 mi (2.300 km ) with full combat TOW
Service ceiling: 40.900 ft (12.500 m)
Rate of climb: 4.635 ft/min (23,6 m/s)
Wing loading: 29.8 lb/ft² (121.9 kg/m²)
Power/mass: 0.24 hp/lb (0.39 kW/kg)
Engine:
2× Heinkel-Hirth HeS 021 turboprop engines, 1.438 kW (2.500 hp) plus 980 kp (2.158 lb) residual thrust each
Armament: Varied, but typical basic equipment was:
2× 20 mm MG 151/20 cannons with 350 rpg, fixed in the nose
2× 13 mm (.51 in) MG 131 machine guns with 500 rpg in the nose flanks
2× 13 mm (.51 in) MG 131 machine guns with 500 rpg, each firing rearward from FDSL 131/1B remote-operated turret, one per side;
Up to 1.200 kg (2.643 lb) of disposable stores in- and externally
In the field, many modifications were made and several additional weapon packages with guns, guided and unguided missiles or special weapons were available (so-called ‘Rüstsätze’).
The kit and its assembly:
I am not certain when inspiration struck me for this fantasy aircraft - I guess it was when I tinkered together the Hü 324 whif, which was itself based on a 1:72 scale Il-28 bomber. When I browsed for a respective donation kit I also came across the 1:100 scale kit of the Soviet light bomber from Tamiya, and that stirred something: The Il-28's vintage contours would perfectly suit a Luft '46 aircraft, and with some calculations it was clear that the 1:100 wings would be suitable for something in the class of a 1:72 DH Mosquito or Bf 110. Then, the ill-fated Me 410 came to the scene as a potential late war basis aircraft, and from this starting point the idea of an evolutionary next step of the type, the Messerschmitt Me 510, was born.
Basically this model is a kitbashing of a Tamiya Il-28 in 1:100 (wings & engine nacelles) and the fuselage of a Matchbox Me 410. The IL-28's wings were turned upside down, so that the nacelles would now ride on the wings' top.
This not only looks cool and 'different', it's also plausible because the landing gear could retract into the wings under the nacelles (with the main landing gear doors closed, just like the original Me 410), it would also reduce the angle of the aircraft on the ground to a sensible degree - with the engines under the wings plus the landing gear would have been much to steep!
Fitting the wings to the fuselage was pretty easy, even though the original Me 410 wing profile was much thicker than the slender Il-28 wings. Cleaning and blending the wing root areas was a bit tricky, but the parts get together well.
As a design twist and for a uniform look I also replaced the whole tail section, matching the angular look of the thin new main wings. The horizontal stabilizers are wing tips from a Matchbox Me 262, the vertical fin is a modified outer wing part from a Matchbox Grumman Panther.
The engine nacelles were taken OOB. I just filled the Il-28's landing gear wells and their covers with putty, since they'd end on top of the new engines.
The propellers come from Matchbox P-51 Mustangs, outfitted with pointed spinners and held by a metal pin in a polystyrene tube which runs through the original intake splitter. Looks pretty martial, even though the nacelles ended up a bit close to the fuselage. The overall look reminds of the Short Sturgeon, but is not inplausible. A compact aircraft!
The cockpit received some side panels, news seats and some equipment, since the original Matchbox kit features almost nothing beyond a floor plate, two broad benches as seats and pilot figures. I also opened the cockpit hatches, since the aircraft would be built for ground display, with the landing gear extended.
From the original kit the BK 5 cannon installation was taken over, but I added a scratch-built, bigger muzzle brake. Since the aircraft was to become a high speed interceptor/Zerstörer for daylight operations, I did not add any further external ordnance.
Painting and markings:
I pondered about a potential livery for a long time. Almost any Me 410 was delivered in RLM 74/75/76 livery, and some at the Western front in France were operated in RLM 70/71/65, with a low waterline. But I found this pretty... boring. So I made up a fantasy livery which I found suitable for high altitude operations and based on my knowledge of late Luftwaffe paint scheme - pretty complex:
The aircraft was to be light in color, primarily camouflaged for aerial combat. I ended up with something that was planned as something that could have almost been called 'low-viz': all lower surfaces received a basic tone of RLM 76 (from Testors), with a raised waterline on all flanks. This light blue-grey would blend into a slightly darker FS 36320 on the higher flanks, almost up to the upper surfaces.
But in the end, the flanks received more spots than intended, and I ended up with a rather conservative livery - but it ain't bad at all. But so it goes...
The upper wing surfaces received a wavy scheme in RLM 71 (Drak Green) and 75 (Middel Grey). These are not typical late war colors, I rather used them due to the lighter shades. On the fuselage, just the fuselage crest was painted with more or less dense blotches of these tones, blending into more patches of RLM 02 on the flanks.
To add some more unconventional detail, the fuselage sides and undersides also received large, cloudy patches of RLM 77 - a very light grey. This detail was featured on some late-war He 177 bombers, but you can hardly tell these extra blotches because they have only little contrast to the RLM 76.
The tail fin was painted all white - a formation sign for a squadron leader, typical for German late WWII fighters. The black and white fuselage stripe is the ID of Jagdgeschwader 26 (which operated Fw 190D-9 from airfields in northern Germany, Flensburg was one of them), the red number abd the "+" code identify the machine as being part of the eighth Staffel.
In the end, a very subtle whif. The new engines are most obvious, and they change the look of the Me 410 dramatically. But only on second glance you recognize the other changes. The new wings/stabilizers with their square-shaped tips create a very slender and elegant look, the aircraft just looks fast and agile like a true heavy fighter should. Mission accomplished!
+++ 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 on authentic facts. BEWARE!
Some background:
The English Electric Skyspark was a British fighter aircraft that served as an interceptor during the 1960s, the 1970s and into the late 1980s. It remains the only UK-designed-and-built fighter capable of Mach 2. The Skyspark was designed, developed, and manufactured by English Electric, which was later merged into the newly-formed British Aircraft Corporation. Later the type was marketed as the BAC Skyspark.
The specification for the aircraft followed the cancellation of the Air Ministry's 1942 E.24/43 supersonic research aircraft specification which had resulted in the Miles M.52 program. W.E.W. "Teddy" Petter, formerly chief designer at Westland Aircraft, was a keen early proponent of Britain's need to develop a supersonic fighter aircraft. In 1947, Petter approached the Ministry of Supply (MoS) with his proposal, and in response Specification ER.103 was issued for a single research aircraft, which was to be capable of flight at Mach 1.5 (1,593 km/h) and 50,000 ft (15,000 m).
Petter initiated a design proposal with F W "Freddie" Page leading the design and Ray Creasey responsible for the aerodynamics. As it was designed for Mach 1.5, it had a 40° swept wing to keep the leading edge clear of the Mach cone. To mount enough power into the airframe, two engines were installed, in an unusual, stacked layout and with a high tailplane This proposal was submitted in November 1948, and in January 1949 the project was designated P.1 by English Electric. On 29 March 1949 MoS granted approval to start the detailed design, develop wind tunnel models and build a full-size mock-up.
The design that had developed during 1948 evolved further during 1949 to further improve performance. To achieve Mach 2 the wing sweep was increased to 60° with the ailerons moved to the wingtips. In late 1949, low-speed wind tunnel tests showed that a vortex was generated by the wing which caused a large downwash on the initial high tailplane; this issue was solved by lowering the tail below the wing. Following the resignation of Petter, Page took over as design team leader for the P.1. In 1949, the Ministry of Supply had issued Specification F23/49, which expanded upon the scope of ER103 to include fighter-level manoeuvring. On 1 April 1950, English Electric received a contract for two flying airframes, as well as one static airframe, designated P.1.
The Royal Aircraft Establishment disagreed with Petter's choice of sweep angle (60 degrees) and the stacked engine layout, as well as the low tailplane position, was considered to be dangerous, too. To assess the effects of wing sweep and tailplane position on the stability and control of Petter's design Short Brothers were issued a contract, by the Ministry of Supply, to produce the Short SB.5 in mid-1950. This was a low-speed research aircraft that could test sweep angles from 50 to 69 degrees and tailplane positions high or low. Testing with the wings and tail set to the P.1 configuration started in January 1954 and confirmed this combination as the correct one. The proposed 60-degree wing sweep was retained, but the stacked engines had to give way to a more conventional configuration with two engines placed side-by-side in the tail, but still breathing through a mutual nose air intake.
From 1953 onward, the first three prototype aircraft were hand-built at Samlesbury. These aircraft had been assigned the aircraft serials WG760, WG763, and WG765 (the structural test airframe). The prototypes were powered by un-reheated Armstrong Siddeley Sapphire turbojets, as the selected Rolls-Royce Avon engines had fallen behind schedule due to their own development problems. Since there was not much space in the fuselage for fuel, the thin wings became the primary fuel tanks and since they also provided space for the stowed main undercarriage the fuel capacity was relatively small, giving the prototypes an extremely limited endurance. The narrow tires housed in the thin wings rapidly wore out if there was any crosswind component during take-off or landing. Outwardly, the prototypes looked very much like the production series, but they were distinguished by the rounded-triangular air intake with no center-body at the nose, short fin, and lack of operational equipment.
On 9 June 1952, it was decided that there would be a second phase of prototypes built to develop the aircraft toward achieving Mach 2.0 (2,450 km/h); these were designated P.1B while the initial three prototypes were retroactively reclassified as P.1A. P.1B was a significant improvement on P.1A. While it was similar in aerodynamics, structure and control systems, it incorporated extensive alterations to the forward fuselage, reheated Rolls Royce Avon R24R engines, a conical center body inlet cone, variable nozzle reheat and provision for weapons systems integrated with the ADC and AI.23 radar. Three P.1B prototypes were built, assigned serials XA847, XA853 and XA856.
In May 1954, WG760 and its support equipment were moved to RAF Boscombe Down for pre-flight ground taxi trials; on the morning of 4 August 1954, WG760 flew for the first time from Boscombe Down. One week later, WG760 officially achieved supersonic flight for the first time, having exceeded the speed of sound during its third flight. While WG760 had proven the P.1 design to be viable, it was plagued by directional stability problems and a dismal performance: Transonic drag was much higher than expected, and the aircraft was limited to Mach 0.98 (i.e. subsonic), with a ceiling of just 48,000 ft (14,630 m), far below the requirements.
To solve the problem and save the P.1, Petter embarked on a major redesign, incorporating the recently discovered area rule, while at the same time simplifying production and maintenance. The redesign entailed a new, narrower canopy, a revised air intake, a pair of stabilizing fins under the rear fuselage, and a shallow ventral fairing at the wings’ trailing edge that not only reduced the drag coefficient along the wing/fuselage intersection, it also provided space for additional fuel.
On 4 April 1957 the modified P.1B (XA847) made the first flight, immediately exceeding Mach 1. During the early flight trials of the P.1B, speeds in excess of 1,000 mph were achieved daily.
In late October 1958, the plane was officially presented. The event was celebrated in traditional style in a hangar at Royal Aircraft Establishment (RAE) Farnborough, with the prototype XA847 having the name ‘Skyspark’ freshly painted on the nose in front of the RAF Roundel, which almost covered it. A bottle of champagne was put beside the nose on a special rig which allowed the bottle to safely be smashed against the side of the aircraft.
On 25 November 1958 the P.1B XA847 reached Mach 2 for the first time. This made it the second Western European aircraft to reach Mach 2, the first one being the French Dassault Mirage III just over a month earlier on 24 October 1958
The first operational Skyspark, designated Skyspark F.1, was designed as a pure interceptor to defend the V Force airfields in conjunction with the "last ditch" Bristol Bloodhound missiles located either at the bomber airfield, e.g. at RAF Marham, or at dedicated missile sites near to the airfield, e.g. at RAF Woodhall Spa near the Vulcan station RAF Coningsby. The bomber airfields, along with the dispersal airfields, would be the highest priority targets in the UK for enemy nuclear weapons. To best perform this intercept mission, emphasis was placed on rate-of-climb, acceleration, and speed, rather than range – originally a radius of operation of only 150 miles (240 km) from the V bomber airfields was specified – and endurance. Armament consisted of a pair of 30 mm ADEN cannon in front of the cockpit, and two pylons for IR-guided de Havilland Firestreak air-to-air missiles were added to the lower fuselage flanks. These hardpoints could, alternatively, carry pods with unguided 55 mm air-to-air rockets. The Ferranti AI.23 onboard radar provided missile guidance and ranging, as well as search and track functions.
The next two Skyspark variants, the Skyspark F.1A and F.2, incorporated relatively minor design changes, but for the next variant, the Skyspark F.3, they were more extensive: The F.3 had higher thrust Rolls-Royce Avon 301R engines, a larger squared-off fin that improved directional stability at high speed further and a strengthened inlet cone allowing a service clearance to Mach 2.0 (2,450 km/h; the F.1, F.1A and F.2 were all limited to Mach 1.7 (2,083 km/h). An upgraded A.I.23B radar and new, radar-guided Red Top missiles offered a forward hemisphere attack capability, even though additional electronics meant that the ADEN guns had to be deleted – but they were not popular in their position in front of the windscreen, because the muzzle flash blinded the pilot upon firing. The new engines and fin made the F.3 the highest performance Skyspark yet, but this came at a steep price: higher fuel consumption, resulting in even shorter range. From this basis, a conversion trainer with a side-by-side cockpit, the T.4, was created.
The next interceptor variant was already in development, but there was a need for an interim solution to partially address the F.3's shortcomings, the F.3A. The F.3A introduced two major improvements: a larger, non-jettisonable, 610-imperial-gallon (2,800 L) ventral fuel tank, resulting in a much deeper and longer belly fairing, and a new, kinked, conically cambered wing leading edge. The conically cambered wing improved manoeuvrability, especially at higher altitudes, and it offered space for a slightly larger leading edge fuel tank, raising the total usable internal fuel by 716 imperial gallons (3,260 L). The enlarged ventral tank not only nearly doubled available fuel, it also provided space at its front end for a re-instated pair of 30 mm ADEN cannon with 120 RPG. Alternatively, a retractable pack with unguided 55 mm air-to-air rockets could be installed, or a set of cameras for reconnaissance missions. The F.3A also introduced an improved A.I.23B radar and the new IR-guided Red Top missile, which was much faster and had greater range and manoeuvrability than the Firestreak. Its improved infrared seeker enabled a wider range of engagement angles and offered a forward hemisphere attack capability that would allow the Skyspark to attack even faster bombers (like the new, supersonic Tupolev T-22 Blinder) through a collision-course approach.
Wings and the new belly tank were also immediately incorporated in a second trainer variant, the T.5.
The ultimate variant, the Skyspark F.6, was nearly identical to the F.3A, with the exception that it could carry two additional 260-imperial-gallon (1,200 L) ferry tanks on pylons over the wings. These tanks were jettisonable in an emergency and gave the F.6 a substantially improved deployment capability, even though their supersonic drag was so high that the extra fuel would only marginally raise the aircraft’s range when flying beyond the sound barrier for extended periods.
Finally, there was the Skyspark F.2A; it was an early production F.2 upgraded with the new cambered wing, the squared fin, and the 610 imperial gallons (2,800 L) ventral tank. However, the F.2A retained the old AI.23 radar, the IR-guided Firestreak missile and the earlier Avon 211R engines. Although the F.2A lacked the thrust of the later Skysparks, it had the longest tactical range of all variants, and was used for low-altitude interception over West Germany.
The first Skysparks to enter service with the RAF, three pre-production P.1Bs, arrived at RAF Coltishall in Norfolk on 23 December 1959, joining the Air Fighting Development Squadron (AFDS) of the Central Fighter Establishment, where they were used to clear the Skyspark for entry into service. The production Skyspark F.1 entered service with the AFDS in May 1960, allowing the unit to take part in the air defence exercise "Yeoman" later that month. The Skyspark F.1 entered frontline squadron service with 74 Squadron at Coltishall from 11 July 1960. This made the Skyspark the second Western European-built combat aircraft with true supersonic capability to enter service and the second fully supersonic aircraft to be deployed in Western Europe (the first one in both categories being the Swedish Saab 35 Draken on 8 March 1960 four months earlier).
The aircraft's radar and missiles proved to be effective, and pilots reported that the Skyspark was easy to fly. However, in the first few months of operation the aircraft's serviceability was extremely poor. This was due to the complexity of the aircraft systems and shortages of spares and ground support equipment. Even when the Skyspark was not grounded by technical faults, the RAF initially struggled to get more than 20 flying hours per aircraft per month compared with the 40 flying hours that English Electric believed could be achieved with proper support. In spite of these concerns, within six months of the Skyspark entering service, 74 Squadron was able to achieve 100 flying hours per aircraft.
Deliveries of the slightly improved Skyspark F.1A, with revised avionics and provision for an air-to-air refueling probe, allowed two more squadrons, 56 and 111 Squadron, both based at RAF Wattisham, to convert to the Skyspark in 1960–1961. The Skyspark F.1 was only ordered in limited numbers and served only for a short time; nonetheless, it was viewed as a significant step forward in Britain's air defence capabilities. Following their replacement from frontline duties by the introduction of successively improved Skyspark variants, the remaining F.1 aircraft were employed by the Skyspark Conversion Squadron.
The improved F.2 entered service with 19 Squadron at the end of 1962 and 92 Squadron in early 1963. Conversion of these two squadrons was aided by the of the two-seat T.4 and T.5 trainers (based on the F.3 and F.3A/F.6 fighters), which entered service with the Skyspark Conversion Squadron (later renamed 226 Operational Conversion Unit) in June 1962. While the OCU was the major user of the two-seater, small numbers were also allocated to the front-line fighter squadrons. More F.2s were produced than there were available squadron slots, so later production aircraft were stored for years before being used operationally; some of these Skyspark F.2s were converted to F.2As.
The F.3, with more powerful engines and the new Red Top missile was expected to be the definitive Skyspark, and at one time it was planned to equip ten squadrons, with the remaining two squadrons retaining the F.2. However, the F.3 also had only a short operational life and was withdrawn from service early due to defence cutbacks and the introduction of the even more capable and longer-range F.6, some of which were converted F.3s.
The introduction of the F.3 and F.6 allowed the RAF to progressively reequip squadrons operating aircraft such as the subsonic Gloster Javelin and retire these types during the mid-1960s. During the 1960s, as strategic awareness increased and a multitude of alternative fighter designs were developed by Warsaw Pact and NATO members, the Skyspark's range and firepower shortcomings became increasingly apparent. The transfer of McDonnell Douglas F-4 Phantom IIs from Royal Navy service enabled these much longer-ranged aircraft to be added to the RAF's interceptor force, alongside those withdrawn from Germany as they were replaced by SEPECAT Jaguars in the ground attack role.
The Skyspark's direct replacement was the Tornado F.3, an interceptor variant of the Panavia Tornado. The Tornado featured several advantages over the Skyspark, including far larger weapons load and considerably more advanced avionics. Skysparks were slowly phased out of service between 1974 and 1988, even though they lasted longer than expected because the definitive Tornado F.3 went through serious teething troubles and its service introduction was delayed several times. In their final years, the Skysparks’ airframes required considerable maintenance to keep them airworthy due to the sheer number of accumulated flight hours.
General characteristics:
Crew: 1
Length: 51 ft 2 in (15,62 m) fuselage only
57 ft 3½ in (17,50 m) including pitot
Wingspan: 34 ft 10 in (10.62 m)
Height: 17 ft 6¾ in (5.36 m)
Wing area: 474.5 sq ft (44.08 m²)
Empty weight: 31,068 lb (14,092 kg) with armament and no fuel
Gross weight: 41,076 lb (18,632 kg) with two Red Tops, ammunition, and internal fuel
Max. takeoff weight: 45,750 lb (20,752 kg)
Powerplant:
2× Rolls-Royce Avon 301R afterburning turbojet engines,
12,690 lbf (56.4 kN) thrust each dry, 16,360 lbf (72.8 kN) with afterburner
Performance:
Maximum speed: Mach 2.27 (1,500 mph+ at 40,000 ft)
Range: 738 nmi (849 mi, 1,367 km)
Combat range: 135 nmi (155 mi, 250 km) supersonic intercept radius
Range: 800 nmi (920 mi, 1,500 km) with internal fuel
1,100 nmi (1,300 mi; 2,000 km) with external overwing tanks
Service ceiling: 60,000 ft (18,000 m)
Zoom ceiling: 70,000 ft (21,000 m)
Rate of climb: 20,000 ft/min (100 m/s) sustained to 30,000 ft (9,100 m)
Zoom climb: 50,000 ft/min
Time to altitude: 2.8 min to 36,000 ft (11,000 m)
Wing loading: 76 lb/sq ft (370 kg/m²) with two AIM-9 and 1/2 fuel
Thrust/weight: 0.78 (1.03 empty)
Armament:
2× 30 mm (1.181 in) ADEN cannon with 120 RPG in the lower fuselage
2× forward fuselage hardpoints for a single Firestreak or Red Top AAM each
2× overwing pylon stations for 2.000 lb (907 kg each)
for 260 imp gal (310 US gal; 1,200 l) ferry tanks
The kit and its assembly:
This build was a submission to the “Hunter, Lightning, Canberra” group build at whatifmodellers.com, and one of my personal ultimate challenges – a project that you think about very often, but the you put the thought back into its box when you realize that turning this idea into hardware will be a VERY tedious, complex and work-intensive task. But the thematic group build was the perfect occasion to eventually tackle the idea of a model of a “side-by-side engine BAC Lightning”, a.k.a. “Flatning”, as a rather conservative alternative to the real aircraft’s unique and unusual design with stacked engines in the fuselage, which brought a multitude of other design consequences that led to a really unique aircraft.
And it sound so simple: take a Lightning, just change the tail section. But it’s not that simple, because the whole fuselage shape would be different, resulting in less depth, the wings have to be attached somewhere and somehow, the landing gear might have to be adjusted/shortened, and how the fuselage diameter shape changes along the hull, so that you get a more or less smooth shape, was also totally uncertain!
Initially I considered a MiG Ye-152 as a body donor, but that was rejected due to the sheer price of the only available kit (ModelSvit). A Chinese Shenyang J-8I would also have been ideal – but there’s not 1:72 kit of this aircraft around, just of its successor with side intakes, a 1:72 J-8II from trumpeter.
I eventually decided to keep costs low, and I settled for the shaggy PM Model Su-15 (marketed as Su-21) “Flagon” as main body donor: it’s cheap, the engines have a good size for Avons and the pen nib fairing has a certain retro touch that goes well with the Lightning’s Fifties design.
The rest of this "Flatning" came from a Hasegawa 1:72 BAC Lightning F.6 (Revell re-boxing).
Massive modifications were necessary and lots of PSR. In an initial step the Flagon lost its lower wing halves, which are an integral part of the lower fuselage half. The cockpit section was cut away where the intake ducts begin. The Lightning had its belly tank removed (set aside for a potential later re-installation), and dry-fitting and crude measures suggested that only the cockpit section from the Lightning, its spine and the separate fin would make it onto the new fuselage.
Integrating the parts was tough, though! The problem that caused the biggest headaches: how to create a "smooth" fuselage from the Lightning's rounded front end with a single nose intake that originally develops into a narrow, vertical hull, combined with the boxy and rather wide Flagon fuselage with large Phantom-esque intakes? My solution: taking out deep wedges from all (rather massive) hull parts along the intake ducts, bend the leftover side walls inwards and glue them into place, so that the width becomes equal with the Lightning's cockpit section. VERY crude and massive body work!
However, the Lightning's cockpit section for the following hull with stacked engines is much deeper than the Flagon's side-by-side layout. My initial idea was to place the cockpit section higher, but I would have had to transplant a part of the Lightning's upper fuselage (with the spine on top, too!) onto the "flat" Flagon’s back. But this would have looked VERY weird, and I'd have had to bridge the round ventral shape of the Lightning into the boxy Flagon underside, too. This was no viable option, so that the cockpit section had to be further modified; I cut away the whole ventral cockpit section, at the height of the lower intake lip. Similar to my former Austrian Hasegawa Lightning, I also cut away the vertical bulkhead directly behind the intake opening - even though I did not improve the cockpit with a better tub with side consoles. At the back end, the Flagon's jet exhausts were opened and received afterburner dummies inside as a cosmetic upgrade.
Massive PSR work followed all around the hull. The now-open area under the cockpit was filled with lead beads to keep the front wheel down, and I implanted a landing gear well (IIRC, it's from an Xtrakit Swift). With the fuselage literally taking shape, the wings were glued together and the locator holes for the overwing tanks filled, because they would not be mounted.
To mount the wings to the new hull, crude measurements suggested that wedges had to be cut away from the Lightning's wing roots to match the weird fuselage shape. They were then glued to the shoulders, right behind the cockpit due to the reduced fuselage depth. At this stage, the Lightning’s stabilizer attachment points were transplanted, so that they end up in a similar low position on the rounded Su-15 tail. Again, lots of PSR…
At this stage I contemplated the next essential step: belly tank or not? The “Flatning” would have worked without it, but its profile would look rather un-Lightning-ish and rather “flat”. On the other side, a conformal tank would probably look quite strange on the new wide and flat ventral fuselage...? Only experiments could yield an answer, so I glued together the leftover belly bulge parts from the Hasegawa kit and played around with it. I considered a new, wider belly tank, but I guess that this would have looked too ugly. I eventually settled upon the narrow F.6 tank and also used the section behind it with the arrestor hook. I just reduced its depth by ~2 mm, with a slight slope towards the rear because I felt (righteously) that the higher wing position would lower the model’s stance. More massive PSR followed….
Due to the expected poor ground clearance, the Lightning’s stabilizing ventral fins were mounted directly under the fuselage edges rather than on the belly tank. Missile pylons for Red Tops were mounted to the lower front fuselage, similar to the real arrangement, and cable fairings, scratched from styrene profiles, were added to the lower flanks, stretching the hull optically and giving more structure to the hull.
To my surprise, I did not have to shorten the landing gear’s main legs! The wings ended up a little higher on the fuselage than on the original Lightning, and the front wheel sits a bit further back and deeper inside of its donor well, too, so that the fuselage comes probably 2 mm closer to the ground than an OOB Lightning model. Just like on the real aircraft, ground clearance is marginal, but when the main wheels were finally in place, the model turned out to have a low but proper stance, a little F8U-ish.
Painting and markings:
I was uncertain about the livery for a long time – I just had already settled upon an RAF aircraft. But the model would not receive a late low-viz scheme (the Levin, my mono-engine Lightning build already had one), and no NMF, either. I was torn between an RAF Germany all-green over NMF undersides livery, but eventually went for a pretty standard RAF livery in Dark Sea Grey/Dark Green over NMF undersides, with toned-down post-war roundels.
A factor that spoke in favor of this route was a complete set of markings for an RAF 11 Squadron Lightning F.6 in such a guise on an Xtradecal set, which also featured dayglo orange makings on fin, wings and stabilizers – quite unusual, and a nice contrast detail on the otherwise very conservative livery. All stencils were taken from the OOB Revell sheet for the Lightning. Just the tactical code “F” on the tail was procured elsewhere, it comes from a Matchbox BAC Lightning’s sheet.
After basic painting the model received the usual black ink washing, some post-panel-shading and also a light treatment with graphite to create soot strains around the jet exhausts and the gun ports, and to emphasize the raised panel lines on the Hasegawa parts.
Finally, the model was sealed with matt acrylic varnish and final bits and pieces like the landing gear and the Red Tops (taken OOB) were mounted.
A major effort, and I have seriously depleted my putty stocks for this build! However, the result looks less spectacular than it actually is: changing a Lightning from its literally original stacked engine layout into a more conservative side-by-side arrangement turned out to be possible, even though the outcome is not really pretty. But it works and is feasible!
+++ 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 World War I, the German aircraft industry had several problems. German airlines were forbidden to operate multi engine aircraft and during a period all manufacturing of aircraft in Germany was banned. By 1921, some of the restrictions was lifted, civilian aircraft could be made after approval of an international control commission if they fulfilled certain requirements. To bypass these rules and to be able to make whatever aircraft they wanted several aircraft manufacturers moved abroad. In 1921, Carl Bücker handled the purchase of a reconnaissance aircraft from Caspar-Werke in Travemünde. Because they expected problems due to the rules in the peace treaty regarding the export of German fighter aircraft, Bücker explored the possibility to smuggle the parts out of Germany and assemble the aircraft in Sweden.
To make the purchase easier, Ernst Heinkel and Bücker started Svenska Aero in Lidingö in 1921. The contract on the aircraft was transferred from Caspar to Svenska Aero. Heinkel and some German assembly workers temporarily moved to Lidingö to assemble the aircraft. During 1922 to 1923, the company moved into a former shipyard in Skärsätra on Lidingö since the company had received additional orders from the navy's air force. The parts for those aircraft were made in Sweden by Svenska Aero but assembled by TDS. In 1928, the navy ordered four J 4 (Heinkel HD 19) as a fighter with pontoons. That delivery came to be the last licens- built aircraft by Svenska Aero. In the mid-1920s, Svenska Aero created their own design department to be able to make their own aircraft models. Sven Blomberg, earlier employed by Heinkel Flugzeugwerke, was hired as head of design. In 1930, he was joined by Anders Johan Andersson from Messerschmitt. Despite that, Svenska Aero designed and made several different models on their own.
One of them was the model SA-16, a direct response to the Swedish Air Force and Navy’s interest in the new dive bomber tactics, which had become popular in Germany since the mid-Thirties and had spawned several specialized aircraft, the Junkers Ju 87 being the best-known type. The Flygvapnet (Swedish Air Force) had already conducted dive bombing trials with Hawker Hart (B 4) biplanes, but only with mixed results. Diving towards the target simplified the bomb's trajectory and allowed the pilot to keep visual contact throughout the bomb run. This allowed attacks on point targets and ships, which were difficult to attack with conventional level bombers, even en masse. While accuracy was increased through bombing runs at almost vertical dive, the aircraft were not suited for this kind of operations – structurally, and through the way the bombs were dropped.
Therefore, Svenska Aero was tasked to develop an indigenous dedicated dive bomber, primarily intended to attack ships, and with a secondary role as reconnaissance aircraft – a mission profile quite similar to American ship-based “SB” aircraft of the time. Having learnt from the tests with the Hawker Harts, the SA-16 was a very robust monoplane, resulting in an almost archaic look. It was a single-engine all-metal cantilever monoplane with a fixed undercarriage and carried a two-person crew. The main construction material was duralumin, and the external coverings were made of duralumin sheeting, bolts and parts that were required to take heavy stress were made of steel. The wings were of so-called “double-wing” construction, which gave the SA-16 considerable advantage on take-off; even at a shallow angle, large lift forces were created through the airfoil, reducing take-off and landing runs. Retractable perforated air brakes were mounted under the wings’ leading edges. The fully closed “greenhouse cabin” offered space for a crew of two in tandem, with the pilot in front and a navigator/radio operator/observer/gunner behind. To provide the rear-facing machine gun with an increased field of fire, the stabilizers were of limited span but deeper to compensate for the loss of surface, what resulted in unusual proportions. As a side benefit, the short stabilizers had, compared with a wider standard layout, increased structural integrity. Power came from an air-cooled Bristol Mercury XII nine-cylinder radial engine with 880 hp (660 kW), built by Nohab in Sweden.
Internal armament consisted of two fixed forward-firing 8 mm (0.315 in) Flygplanskulspruta Ksp m/22F (M1919 Browning AN/M2) machine guns in the wings outside of the propeller disc. A third machine gun of the same type was available in the rear cockpit on a flexible mount as defensive weapon. A total of 700 kg (1,500 lb) of bombs could be carried externally. On the fuselage centerline, a swing arm could hold bombs of up to 500 kg (1.100 lb) caliber and deploy them outside of the propeller arc when released in a, additional racks under the outer wings could hold bombs of up to 250 kg (550 lb) caliber each or clusters of smaller bombs, e. g. four 50 (110 lb) or six 12 kg (26 ½ lb) bombs.
Flight testing of the first SA-16 prototype began on 14 August 1936. The aircraft could take off in 250 m (820 ft) and climb to 1,875 m (6,152 ft) in eight minutes with a 250 kg (550 lb) bomb load, and its cruising speed was 250 km/h (160 mph). This was less than expected, and pilots also complained that navigation and powerplant instruments were cluttered and not easy to read, especially in combat. To withstand strong forces during a dive, heavy plating, along with brackets riveted to the frame and longeron, was added to the fuselage. Despite this, pilots praised the aircraft's handling qualities and strong airframe. These problems were quickly resolved, but subsequent testing and progress still fell short of the designers’ hopes. With some refinements the machine's speed was increased to 274 km/h (170 mph) at ground level and 319 km/h 319 km/h (198 mph, 172 kn) at 3,650 m (11,980 ft), while maintaining its good handling ability.
Since the Swedish Air Force was in dire need for a dive bomber, the SA-16 was accepted into service as the B 9 – even though it was clear that it was only a stopgap solution on the way to a more capable light bomber with dive attack capabilities. This eventually became the Saab 17, which was initiated in 1938 as a request from the Flygvapnet to replace its fleet of dive bombers of American origin, the B 5 (Northrop A-17), the B 6 (Seversky A8V1) and the obsolete Fokker S 6 (C.Ve) sesquiplane, after the deal with Fokker to procure the two-engine twin-boom G.I as a standardized type failed due to the German invasion of the Netherlands. The B 9 dive bomber would subsequently be replaced by the more modern and capable B 17 in the long run, too, which made its first flight on 18 May 1940 and was introduced to frontline units in March 1942. Until then, 93 SA-16s had been produced between 1937 and 1939. When the B 17 became available, the slow B 9 was quickly retired from the attack role. Plans to upgrade the aircraft with a stronger 14 cylinder engine (a Piaggio P.XIbis R.C.40D with 790 kW/1,060 hp) were not carried out, as it was felt that the design lacked further development potential in an offensive role.
Because the airframes were still young and had a lot of service life ahead of them, most SA-16s were from 1941 on relegated to patrol and reconnaissance missions along the Swedish coastlines, observing ship and aircraft traffic in the Baltic Sea and undertaking rescue missions with droppable life rafts. For long-range missions, the forked ventral swing arm was replaced with a fixed plumbed pylon for an external 682 liters (150 Imp. gal.) auxiliary tank that more than doubled the aircraft’s internal fuel capacity of 582 liters, giving it an endurance of around 8 hours. In many cases, the machine guns on these aircraft were removed to save weight. In this configuration the SA-16 was re-designated S 9 (“S” for Spaning) and the machines served in their naval observation and SAR role well into the Fifties, when the last SA-16s were retired.
General characteristics:
Crew: two, pilot and observer
Length: 9,58 m (31 ft 11 in)
Wingspan: 10,67 m (34 ft 11 in)
Height: 3,82 m (12 ft 6 in)
Wing area: 30.2 m² (325 sq ft)
Empty weight: 2,905 kg (6,404 lb)
Gross weight: 4,245 kg (9,359 lb)
Max takeoff weight: 4,853 kg (10,700 lb)
Powerplant:
1× Bristol Mercury XII nine-cylinder radial engine with 880 hp (660 kW),
driving a three-bladed variable pitch metal propeller
u>Performance:
Maximum speed: 319 km/h (198 mph, 172 kn) at 3,650 m (11,980 ft)
274 km/h (170 mph; 148 kn) at sea level
299 km/h (186 mph; 161 kn) at 2,000 m (6,600 ft)
308 km/h (191 mph; 166 kn) at 5,000 m (16,000 ft)
Stall speed: 110 km/h (68 mph, 59 kn)
Range: 1,260 km (780 mi, 680 nmi)
Service ceiling: 7,300 m (24,000 ft)
Time to altitude: 2,000 m (6,600 ft) in 4 minutes 45 seconds
4,000 m (13,000 ft) in 15 minutes 10 seconds
Armament:
2× fixed 8 mm (0.315 in) Flygplanskulspruta Ksp m/22F (M1919 Browning AN/M2) machine guns
in the wings outside of the propeller disc (with 600 RPG), plus
1× 8 mm (0.315 in) Ksp m/22F machine gun on a flexible mount in the rear cockpit with 800 rounds
Ventral and underwing hardpoints for a total external bomb load of 700 kg (1,500 lb)
The kit and its assembly:
This purely fictional Swedish dive bomber was inspired by reading about Flygvapnet‘s pre-WWII trials with dive bombing tactics and the unsuited aircraft fleet for this task. When I found a Hasegawa SOC Seagull floatplane in The Stash™ and looks at the aircraft’s profile, I thought that it could be converted into a two-seat monoplane – what would require massive changes, though.
However, I liked the SOC’s boxy and rustic look, esp. the fuselage, and from this starting point other ingredients/donors were integrated. Work started with the tail. Originally, I wanted to retain the SOCs fin and stabilizer, but eventually found them oversized for a land-based airplane. In the scrap box I found a leftover fin from an Academy P-47, and it turned out to be a very good, smaller alternative, with the benefit that it visually lengthened the rear fuselage. The stabilizers were replaced with leftover parts from a NOVO Supermarine Attacker – an unlikely choice, but their size was good, they blended well into the overall lines of the aircraft, and they helped to stabilize the fin donor. Blending these new parts into to SOC’s hull required massive PSR, though.
The wings were also not an easy choice, and initially I planned the aircraft with a retractable landing gear. I eventually settled on the outer wings (just outside of the gullwing kink) from an MPM Ju 87 B, because of their shape and the archaic “double wings” that would complement the SOC’s rustic fuselage. However, at this point I refrained from the retractable landing gear and instead went for a fixed spatted alternative, left over from an Airfix Hs 123, which would round up the aircraft’s somewhat vintage look. Because the wheels were missing, I inserted two Matchbox MiG-21 wheels (which were left over in the spares bin from two different kits, though). The tail wheel came from an Academy Fw 190.
Cowling and engine inside (thankfully a 9-cylinder radial that could pose as a Mercury) were taken OOB, just the original two-blade propeller was replaced with a more appropriate three-blade alternative, IIRC from a Hobby Boss Grumman F4F. The cockpit was taken OOB, and I also used the two pilot figures from the kit. The rear crew member just had the head re-positioned to look sideways, and had to have the legs chopped off because there’s hardly and space under the desk with the radio set he’s sitting at.
The ventral 500 kg bomb came from a Matchbox Ju 87, the bomb arms are Fw 189 landing gear parts. Additional underwing pylons came from an Intech P-51, outfitted with 50 kg bombs of uncertain origin (they look as if coming from an old Hasegawa kit). The protruding machine gun barrel fairings on the wings were scratched from styrene rod material, with small holes drilled into them.
A real Frankenstein creation, but it does not look bad or implausible!
Painting and markings:
I gave the B 9 a camouflage that was carried by some Flygvapnet aircraft in the late Thirties, primarily by fighters imported from the United States but also some bombers like the B 3 (Ju 86). The IMHO quite attractive scheme consists on the upper surfaces of greenish-yellow zinc chromate primer (Humbrol 81, FS 33481), on top of which a dense net of fine dark green wriggles (supposed to be FS 34079, but I rather used Humbrol 163, RAF Dark Green, because it is more subdued) was manually applied with a thin brush, so that the primer would still shine through, resulting in a mottled camouflage.
On the real aircraft, this was sealed with a protective clear lacquer to which 5% of the dark green had been added, and I copied this procedure on the model, too, using semi-gloss acrylic varnish with a bit of Revell 46 added. The camouflage was wrapped around the wings’ leading edges and the spatted landing gear was painted with the upper camouflage, too.
The undersides were painted with Humbrol 87 (Steel Grey), to come close to the original blue-grey tone, which is supposed to be FS 35190 on this type of camouflage. The tone is quite dark, almost like RAF PRU Blue.
The interior was painted – using a Saab J 21 cockpit as benchmark – in a dark greenish grey (RAL 7009).
The model received the usual light black ink washing and some post-panel shading on the lower surfaces, because this effect would hardly be recognizable on the highly fragmented upper surface.
The markings are reflecting Flygvapnet’s m/37 regulations, from the direct pre-WWII era when the roundels had turned from black on white to yellow on blue but still lacked the yellow edge around the roundel for more contrast. F6 Västgöta flygflottilj was chosen because it was a dive bomber unit in the late Thirties, and the individual aircraft code (consisting of large white two-digit numbers) was added with the fin and the front of the fuselage. “27” would indicate an aircraft of the unit’s 2nd division, which normally had blue as a standardized color code, incorporated through the blue bands on the spats and the small "2nd div." tag on the rudder (from a contemporary F8 Swedish Gladiator).
Roundels and codes came from an SBS Models sheet, even though they belong to various aircraft types. Everything was finally sealed with matt acrylic varnish.
+++ 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 model, the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
The Me 309 project began in mid-1940, just as the Bf 109 was having its first encounters with the Spitfire in the Battle of Britain, the first aircraft to match the 109 in speed and performance. Already, Messerschmitt anticipated the need for an improved design to replace the Bf 109. The Reich Air Ministry, however, did not feel the same urgency, with the project given a low priority, resulting in the design not being finalized until the end of 1941.
The new fighter had many novel features, such as tricycle landing gear (with a nose gear strut that twisted through 90° during retraction, to a "flat" orientation under the engine) and a pressurized cockpit, which would have given it more comfortable and effective high-altitude performance. Each of the new features was first tested on a number of Bf 109F airframes, the V23 having a ventral radiator, the V31 with a radiator and tricycle landing gear, and the V30 having a pressurized cockpit.
Low government interest in the project delayed completion of the first prototype until spring 1942, and trouble with the nose wheel pushed back the 309's first flight to July. When it did fly, the Me 309's performance was satisfactory – about 50 km/h (30 mph) faster than a standard Bf 109G – but not exemplary. In fact, the Bf 109G could out-turn its intended replacement. With the addition of armament, the aircraft's speed decreased to an unacceptable level. In light of its poor performance and the much more promising development of the Focke-Wulf Fw 190D, the Me 309 in its original form was canceled.
However, the design was not dead and eventually found its way into the Me 509 (with a mid-engine layout) and the Me 609 (a heavy fighter which joined two Me 309 fuselages with a new centre wing section). By the time designs were being ironed out in the course of 1943, revolutionary turbojet engines became operational and with them new designs like the Me 262 or the He 162. These promised superior performance concerning speed, but they had only a short range and the new turbojets’ reliability was poor.
In another attempt to keep the Me 309 alive, Franz Hirschleitner, a young engineer who had formerly worked for Blohm & Voss, proposed the addition of a turbojet engine to the piston fighter as a booster. This would combine the range and reliability of the old technology with the new engine’s potential gain of speed. Having worked on the innovative Bv 141 reconnaissance aircraft before, Hirschleitner proposed an unusual solution for the Me 309 update: since as many original parts of the fighter were to be retained (what ruled out a redesign of the fuselage to carry the turbojet engine), he presented an asymmetrical layout which added a new pod with the cockpit, the armament and an underslung BMW 003 turbojet, which was connected to the Me 309 fuselage with a short wing. The Me 309 fuselage itself was virtually identical with the original fighter, just the weapons had been deleted from it (saving weight) and the former cockpit was faired over, the internal space being used for additional fuel tanks. The outer wings were taken from the Me 309, too, except for a reinforced landing gear which now retracted outwards, so that the aircraft’s track width was kept in acceptable limits. The front wheel still retracted into the Me 309 fuselage.
This aircraft, called the Me 309 T (for “Turbine” = jet engine), was envisioned as a heavy single-seat fighter, armed with four 30 mm cannon. Hardpoints under the middle wing section allowed an external ordnance of 1.000 kg (2.202 lb), including two bombs of up to 500 kg (1.100 lb) caliber each or two 300l drop tanks. Furthermore, the cockpit pod was large enough to add a second crew member under an extended canopy, so that the type could also be developed into a night fighter with a radar.
Despite initial skepticism at the Messerschmitt design bureau, Hirschleitner’s proposal was accepted and presented to the RLM in late 1943. Not surprisingly, it was rejected at first for being “too innovative”. Nevertheless, growing pressure from the Allied forces made the RLM reconsider the Hirschleitner design, since it was based on existing components and could be quickly realized. Therefore, the Me 309 T was ordered into production as the T-0 version in Spring 1944. From these initial aircraft, 12 were produced until August 1944 and used for field tests and conversion training. The T-0 was powered by a DB 603G and a BMW 003C and armed with four MK 108 machine cannon. These initial frontline tests lasted until December 1945 and the aircraft was ordered into full production as the T-1.
Just as the first production machines left the factories in April 1945, an upgraded variant, the T-2, was introduced. It shared the same airframe as the earlier variants but had an upgraded turbojet engine, a BMW 003D, which offered 10.76 kN (2,420 lbf) of thrust instead of the former 8.81 kN (1,980 lbf), together with improved reliability. The armament was upgraded, too: Two of the MK 108s were replaced by MK 103 30 mm machine cannon, a weapon that offered a much higher range and penetration power, so that the aircraft could fire effectively while keeping outside of the Allied bombers' defensive fire, which now frequently entered German airspace. Furthermore a Rüstsatz (R1) was introduced which put two additional MK 108 behind the cockpit, firing obliquely upwards as "schräge Musik" .
Despite the acceptable performance, which made it superior to pure piston-driven fighters of the time like the Republic P-47 or the North American P-51D, the Me 309 T was not very popular among the pilots. The handling on the ground was difficult, not only because of the offset front wheel, but also due to the fact that the left fuselage blocked almost the complete portside field of view. This flaw also created a significant blind spot during flight. Furthermore, getting the Me 309 T into the air without the support from the jet engine could be a gamble, too, esp. when the machine carried external loads. The BMW 003D, even though its reliability had been improved over time, was prone to failure, and the resulting lack of thrust made it a dead weight that severely hampered the aircraft's performance. All in all, only 123 machines were eventually built, with no two-seat night fighter or a trainer ever produced.
General characteristics:
Crew: one
Length: 9.46 m (31 ft 0 in)
Wingspan: 13.60 m (44 ft 7 in)
Height: 3.9 m (12 ft 10 in)
Wing area: 21.1 m² (226 sq ft)
Empty weight: 3,795 kg (8,367 lb)
Gross weight: 6,473 kg (14,271 lb)
Max takeoff weight: 7,130 kg (15,719 lb)
Powerplant:
1× Daimler-Benz DB 603G inverted V-12 liquid-cooled piston engine, 1,287 kW (1,726 hp)
1× BMW 003D (TL 109-003) turbojet with 10.76 kN (2,420 lbf) / 10,000 rpm / sea level
Performance:
Maximum speed: 840 km/h (522 mph, 464 kn) with both powerplants
695 km/h (431 mph, 383 kn) with the DB 603G only
Cruise speed: 665 km/h (413 mph, 359 kn)
Range: 1,100 km (680 mi, 590 nmi)
Service ceiling: 12,000 m (39,000 ft)
Wing loading: 256 kg/m2 (52 lb/sq ft)
Power/mass: 0.31 kW/kg (0.19 hp/lb)
Armament:
2× 30 mm (.1.181 in) MK 103 cannon
2× 30 mm (.1.181 in) MK 108 cannon
Underwing hardpoints for a total external ordnance of 1.000 kg (2.202 lb)
The kit and its assembly:
This model went through a prolonged development phase. It is based on the question whether an asymmetrical Blohm & Voss design could be made compact enough for a fighter aircraft? Aircraft like the Bv 141 reconnaissance aircraft (which actually flew) or the P-194 attack aircraft (which only existed as a paper project) were considerably bigger than typical single seat fighters.
While doing legwork I also found the relatively compact Blohm & Voss P-197 project in literature, which already came closer to my idea - I initally planned to build something along its lines, based on a Revell P-194 kit, but the latter turned out to be too big for this plan and I shelved the idea again.
However, the projected lingered in the back of my mind and was soon revived through the idea of using a Fw 190D fuselage as an alternative. But, alas, I still did not find the affair to be convincing enough for a build, also because of conceptual problems with the landing gear.
Then I eventually stumbled upon a HUMA Me 609 in the stash and considered a "modernized" asymmetrical layout with a tricycle landing gear. And this became the Me 309T.
It sounds so simple: take an aircraft model and add the cockpit pod, together with a new wing middle section. But turning this plan into hardware caused serious headaches. The biggest issue became the landing gear: the only space to stow the main landing gear would be the outer wings. Bu using the original Me 309 landing gear, which retracted inwards and already had a wide track, was impossible. So I decided to "reverse" the landing gear wells for an outward-retracting arrangement. Easier said than done, because the thin Me 309 wings come as single pieces in the HUMA kit: I had to cut out the complete well section on each wing, switch it around and re-sculpt the wings' profiles and surfaces. A lot of work!
The Me 309 fuselage was built OOB and I used the cockpit cover that comes with the Me 609 kit. The Bv P-194 cockpit pod with the jet engine was built OOB, too, but the wing attachment points had to be heavily re-sculpted because the P-194's wings are much deeper and thicker than the Me 309's. For the same reason I could not use the P-194's mid wing section - I had to scratch one from a leftover section of a VEB Plasticart 1:100 An-12, styrene sheet and putty. Messy affair, but at least it matches the outer Me 309 wings in shape and thickness.
A lot of putty was furthermore needed to finish the Me 309 fuselage and re-build all the wing/fuselage intersections. The HUMA Me 309 is a very basic affair, and fit as well as detail are mediocre, putting it in a polite fashion. The Revell P-194 is a little better, but it has many doubtful details like a pilot seat and canopy for pygmies or a poorly fitting jet exhaust section.
Thanks to the wing surgery, the Me 309's OOB landing gear could be retained - it looks pretty stalky, though, and the front wheel strut comes very close to the propeller disc.
Sice the HUMA Me 609 does not come with separate stabilizers I finally had to improvise again: I initially considered and asymmetrical layout (somewhat compensating for the cockpit pod on the starboard side with and extended span at port side), but when I saw how close the fuselages were, I settled upon an enlarged, convetional layout in the form of stabilizers from a Heller He 112.
Painting and markings:
This caused some headaches, too. I did not want a "conventional" late WWII Luftwaffe scheme, even though I wanted to use standard RLM colors. I eventually found inspiration in Me 262 recce aircraft, which frequently featured a unique paint scheme in the form of an overall RLM 76 livery onto which very fine dots or ondulating, thin lines in one or more darker contrast colors (RLM 81 and/or 83) were painted or sprayed. At first In wanted to adapt this scheme to the whole aircraft, but eventually decided to give the wings' upper surfaces a different, more "planar" scheme.
So, the whole model initially received and overall coat of RLM 76 (Humbrol 247), with the wings' undersides left in bare metal and the rudders painted in a greenish-grey primer. The cover of the DB 603 was kept in bare metal, too.
Contrast areas in RLM 81 and 83 (Braunviolett and Dunkelgrün, both from ModelMaster's Authentic line) were added onto the top of the wings, while I painted the fuselages and the fin with a semi-translucent "snake" pattern in RLM 82 (Humbrol 102).
The decals come from a Sky Models Fw 190A/F sheet, the crosses on the fuselage and under the wings come from a generic TL Modellbau sheet.
The cockpit interior as well as the landing gear wells were painted in very dark grey (Revell 09), while the landing gear struts became RLM 02 (Revell 45). The spinner received a black-and-white spiral, with black green propeller blades.
Well, I am not 100% happy with the result. While the overall model looks quite balanced, I am not happy with the finish - partly due to the massive use of putty and the fact that I had to mount parts in a fashion that the kits' manufacturers never expected to happen, but also due to the paint: The Humbrol enamels that I used turned out to be from the poor batch when the fabrication was moved to Belgium a while ago. With the result of a poor and gooey quality. That could have gone better. :-(
Nevertheless, I like the odd look of the asymmetrical design, esp. with the tricycle landing gear. From certain angles, the model looks really weird! And I am amazed how good the camouflage works - it's really disruptive.
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
In the period immediately after the Second World War the world found itself with hundreds of thousands of surplus aircraft and just as many surplus aviators. Most aircraft would meet the salvage blade and the smelter’s fiery furnace. Most pilots would return to civilian life, the bulk of them never to fly again.
With the plethora of military aircraft languishing in desert lots awaiting a certain fate, some of those disenfranchised aviators and aircraft designers would look to new growing markets for salvation. One of these emerging markets was the new-found requirement for fast and capable business transport aircraft for executives looking to link business interests across the vast distances of the nation. With few purpose-built business aircraft available for executives, medium bombers became the drug of choice for high flying big shots—fast, powerful and, with the right interior appointments, a visual statement of their success and power.
In early variants like the Executive, On Mark simply removed military equipment and replaced them with fairings and civil avionics, sealed the bomb bay doors, soundproofed the cabin, and added additional cabin windows. Later models had special wing spars designed to give more interior room, pressurization and equipment from bigger surplus aircraft such as DC-6 brakes and flat glass cockpit windows. It was an elegant mashing together of equipment, but it was not a true business aircraft.
In the Sixties, Jet Craft Ltd. of Las Vegas, Nevada, went for a different interpretation of the same topic: The company had purchased a number of former Royal Australian Air Force Vampire trainers and RCAF single-seaters, which were to be converted to a new design for a business aircraft called 'Mystery Jet', offering 4-8-seats.
Jet Craft worked with stellar British conversion experts Aviation Traders to do the structural design work. Aviation Traders Limited (ATL) was a war-surplus aircraft and spares trader formed in 1947. In 1949, it began maintaining aircraft used by some of Britain’s contemporary independent airlines on the Berlin Airlift. In the early 1950s, it branched out into aircraft conversions and manufacturing.
Aviation Traders worked on the drawings and the structural mock-ups. A full-scale mock-up of the Mystery Jet languished at Southend airport for a decade, trying to lure owners and operators into buying it. And this actually happened: about twenty former Vampire airframes were converted into Mystery Jet business aircraft, tailored to the customers' needs and desires.
The Mystery Jet was just what it looked like: a former De Havilland Vampire with a new, roomy nose section grafted onto it. The cabin was pressurized, and was available in two different lengths (130 and 160 inches long, with two or three rows of seats and reflected in the aircraft's title) and several window and door options - the most exotic option being the "Landaulet" cabin which featured a panoramic roof/window installation over the rear pair of seats (or, alternatively, a two-seat bench).
The original Goblin engine was retained, CG was retained due to the fact that the new cabin was, despite being considerably longer than the Vampire's nose, the biggest version being more than 8 feet longer. The new front section was much lighter, though, e. g. through the loss of the heavy cannons and their armament, as well as some more military avionics. The loss of fuel capacity through the enlarged cabin was compensated through fixed wing tip tanks, so that range was on par with the former military jet, just top speed and ceiling were slightly inferior.
Anyway, prices were steep and from the United States more modern and economical offerings ruled the market. Maintaining a former military jet was also a costly business, so, consequently, after a slight buzz (more of a hum, actually) in the early Seventies, the Mystery Jet and Jet Craft of Las Vegas, also fuelled by some dubious business practices by the company's owner, disappeared. Even further developments of the original concept, e .g. with a wide body for up to 14 passengers and two engines, would not save the Mystery Jet from failure.
General characteristics:
Crew: 1 pilot plus 5-7 passengers
Length (Mystery Jet 160): 38 ft 5 in (11.73 m)
Wingspan incl. tip tanks: 39 ft 7 1/2 in (12.09 m)
Height: 8 ft 10 in (2.69 m)
Wing area: 262 ft² (24.34 m²)
Empty weight: 7,283 lb (3,304 kg)
Max. take-off weight: 12,390 lb (5,620 kg)
Powerplant:
1× de Havilland Goblin 3 centrifugal turbojet, rated at 3,350 lbf (14.90 kN)
Performance:
Maximum speed: 516 mph (832 km/h)
Cruising speed: 400 mph (644 km/h)
Range: 1,220 mi (1,960 km)
Service ceiling: 37,700 ft (11,500 m)
Armament:
None
The kit and its assembly:
The first finished work in 2017 is a different kind of whif, one of the few civilian models in my collection. This conversion looks sick, but ,as weird as it may seem, the Business-Jet-From-Vintage-Vampires idea was real. For more information, and the source from where some of the backgound story was gathered, please check:
www.vintagewings.ca/VintageNews/Stories/tabid/116/article...
Anyway, my build is just a personal interpretation of the original concept, not a true model of the Mystery Jet. In fact, this was limited through the donor parts for this kitbash.
The rear end was the smaller problem: Airfix offers a very good Vampire T.11 trainer with excellent detail and fit - the passenger cabin was the bigger challenge. Finding "something" that would fit in shape and especialsl size was not easy - my first choice was a nose section from a vintage 1:100 Antonow An-24 from VEB Plasticart (still much too wide, though), and the best solution came as an accidental find in a local model kit shop where I found a heavily discounted MPM Focke Wulf Fw 189 B-0 trainer.
The reason: the kit was complete, but the bag holding the sprues must have been heated immensely during the packaging process: the main sprues were horrible warped - except for some single parts including the canopies and the sprue with the cabin! Height wind width were perfect, only the boxy shape caused some headaches. But I guess I would not find anything better...
That said, the transplantation mess started. I never built any of the two donor kits before, so I carefully tried to find the best place where to cut the Vampire's nose - I ended up with a staggered solution right in front of the wing root air intakes.
The Fw 189's cabin was bit more tricky, because I had to get rid of the original wing roots and wanted to use as much space as possible, up to the rear bulkhead and together with the rear cabin window. The idea was to blend the Fw 189's roof line into the Vampire's engine section, while keeping the original air intake ducts, so that the overall arrangement would look plausible.
The result became a pretty long nose section - and at that time the tail booms were not fited yet, so I was not certain concerning overall proportions. The cabin's underside had to be improvised, and blending the boxy front end with a flat underside into the tubby, round Vampire fuselage caused some headaches. I also had to re-create the lower flank section with styrene sheet, because I had originally hoped that I could "push" the new cabin between the wing roots - but that space was occupied by the Goblin's inlet ducts.
Inside of the cabin, the original floor, bulkheads and dashboard were used, plus five bucket seats that come with the MPM kit. In order to hide the body work from the inside, side panels from 0.5mm styrene sheet were added in the cabin - with the benefit of additional stability, but also costing some space... Since the machine was built with closed cabin, a pilot was added - actually a bash of a WWII Matchbox pilot and a German officer from an ESCI tank kit. Looks pretty good and "professional". ;-)
Once the cabin was in place, lots of PSR followed and the tail booms could be fitted. To my relief, the longer nose did not look too unbalanced (and actually, design sketches for the original Mystery Jet suggest just this layout!) - but I decided to add wing tip tanks which would beef up wingspan and shift the visual mass slightly forward. They come from an 1:100 Tamiya Il-28, or better the "R" recce variant.
The only other big change concerned the nose wheel. While the OOB wheel and strut were used, the well is now located in front of the wheel and it would retract forwards, giving the nose a more balanced look - and the cabin arrangement made this change more plausible, too.
Another addition were three small porthole windows in the solid parts of the cabin flanks - one of them ending up in the middle of the cabin door on starboard, where a solid part of the canopy roof lent itself for a good place just behind the pilots' seats.
Painting and markings:
I cannot help it, but the thing looks like a design from a vintage Tintin or Yoko Tsuno comic! This was not planned or expected - and actually the paint scheme evolved step by step. I had no plan or clue what to apply - the real Mystery Jet mock-up in silver with blue trim looked sharp, but somehow I did not want blue. So I started with the interior (out of a necessity, as the fuselage had to be closed before any further work progress at some point) and settled for plushy, British colors: Cream (walls and roof) and Claret-Red (carpet and seats).
I tried to find something for the outside that would complement this choice of colors, and eventually settled on Ivory and White (upper and lower fuselage halves, respectively) with some deep red trim, plus pale grey wing surfaces. I even considered some thin golden trim lines, but I think this would have been too much?
The trim was created with decals tripes from generic sheet material, the black anti-glare panel was painted, though. As a color contrast I painted some of the upper canopy panels in translucent, light blue, and this looks very good.
The wings received a lightb treatment with thinned black ink, in order to emphasize the engravings. No post-shading was done, though, for a rather clean look.
Most markings were puzzled together; the registration G-AZRE actually belonged to a Vickers Vanguard (from the 1:144 Airfix kit), the large letters above and under the wings were created with single 45° letters (USAF style). Most stencils come from a Vampire trainer aftermarket sheet from Xtradecal, from the OOB sheet only the "No step" warnings on the wings were used.
Finally, the kit was sealed with a semi-matt coat of varnish, except for the anti-glare panel, which recived a matt coat. The three small windows received artificial panes made from Clearfix, after their rims had been painted black.
A messy project, and you better do not take a close look. But the overall elegance of this creation surprises me - the real Mystery Jet already looked sleek, and this model, despite a more blunt nose, confirms this impression. The colors work together well, too - and the thing has a dedicated retro feel about it. Tintin might be on board, as well as Elton John, both sharing a cigar on the rear seats... ;)
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
In the period immediately after the Second World War the world found itself with hundreds of thousands of surplus aircraft and just as many surplus aviators. Most aircraft would meet the salvage blade and the smelter’s fiery furnace. Most pilots would return to civilian life, the bulk of them never to fly again.
With the plethora of military aircraft languishing in desert lots awaiting a certain fate, some of those disenfranchised aviators and aircraft designers would look to new growing markets for salvation. One of these emerging markets was the new-found requirement for fast and capable business transport aircraft for executives looking to link business interests across the vast distances of the nation. With few purpose-built business aircraft available for executives, medium bombers became the drug of choice for high flying big shots—fast, powerful and, with the right interior appointments, a visual statement of their success and power.
In early variants like the Executive, On Mark simply removed military equipment and replaced them with fairings and civil avionics, sealed the bomb bay doors, soundproofed the cabin, and added additional cabin windows. Later models had special wing spars designed to give more interior room, pressurization and equipment from bigger surplus aircraft such as DC-6 brakes and flat glass cockpit windows. It was an elegant mashing together of equipment, but it was not a true business aircraft.
In the Sixties, Jet Craft Ltd. of Las Vegas, Nevada, went for a different interpretation of the same topic: The company had purchased a number of former Royal Australian Air Force Vampire trainers and RCAF single-seaters, which were to be converted to a new design for a business aircraft called 'Mystery Jet', offering 4-8-seats.
Jet Craft worked with stellar British conversion experts Aviation Traders to do the structural design work. Aviation Traders Limited (ATL) was a war-surplus aircraft and spares trader formed in 1947. In 1949, it began maintaining aircraft used by some of Britain’s contemporary independent airlines on the Berlin Airlift. In the early 1950s, it branched out into aircraft conversions and manufacturing.
Aviation Traders worked on the drawings and the structural mock-ups. A full-scale mock-up of the Mystery Jet languished at Southend airport for a decade, trying to lure owners and operators into buying it. And this actually happened: about twenty former Vampire airframes were converted into Mystery Jet business aircraft, tailored to the customers' needs and desires.
The Mystery Jet was just what it looked like: a former De Havilland Vampire with a new, roomy nose section grafted onto it. The cabin was pressurized, and was available in two different lengths (130 and 160 inches long, with two or three rows of seats and reflected in the aircraft's title) and several window and door options - the most exotic option being the "Landaulet" cabin which featured a panoramic roof/window installation over the rear pair of seats (or, alternatively, a two-seat bench).
The original Goblin engine was retained, CG was retained due to the fact that the new cabin was, despite being considerably longer than the Vampire's nose, the biggest version being more than 8 feet longer. The new front section was much lighter, though, e. g. through the loss of the heavy cannons and their armament, as well as some more military avionics. The loss of fuel capacity through the enlarged cabin was compensated through fixed wing tip tanks, so that range was on par with the former military jet, just top speed and ceiling were slightly inferior.
Anyway, prices were steep and from the United States more modern and economical offerings ruled the market. Maintaining a former military jet was also a costly business, so, consequently, after a slight buzz (more of a hum, actually) in the early Seventies, the Mystery Jet and Jet Craft of Las Vegas, also fuelled by some dubious business practices by the company's owner, disappeared. Even further developments of the original concept, e .g. with a wide body for up to 14 passengers and two engines, would not save the Mystery Jet from failure.
General characteristics:
Crew: 1 pilot plus 5-7 passengers
Length (Mystery Jet 160): 38 ft 5 in (11.73 m)
Wingspan incl. tip tanks: 39 ft 7 1/2 in (12.09 m)
Height: 8 ft 10 in (2.69 m)
Wing area: 262 ft² (24.34 m²)
Empty weight: 7,283 lb (3,304 kg)
Max. take-off weight: 12,390 lb (5,620 kg)
Powerplant:
1× de Havilland Goblin 3 centrifugal turbojet, rated at 3,350 lbf (14.90 kN)
Performance:
Maximum speed: 516 mph (832 km/h)
Cruising speed: 400 mph (644 km/h)
Range: 1,220 mi (1,960 km)
Service ceiling: 37,700 ft (11,500 m)
Armament:
None
The kit and its assembly:
The first finished work in 2017 is a different kind of whif, one of the few civilian models in my collection. This conversion looks sick, but ,as weird as it may seem, the Business-Jet-From-Vintage-Vampires idea was real. For more information, and the source from where some of the backgound story was gathered, please check:
www.vintagewings.ca/VintageNews/Stories/tabid/116/article...
Anyway, my build is just a personal interpretation of the original concept, not a true model of the Mystery Jet. In fact, this was limited through the donor parts for this kitbash.
The rear end was the smaller problem: Airfix offers a very good Vampire T.11 trainer with excellent detail and fit - the passenger cabin was the bigger challenge. Finding "something" that would fit in shape and especialsl size was not easy - my first choice was a nose section from a vintage 1:100 Antonow An-24 from VEB Plasticart (still much too wide, though), and the best solution came as an accidental find in a local model kit shop where I found a heavily discounted MPM Focke Wulf Fw 189 B-0 trainer.
The reason: the kit was complete, but the bag holding the sprues must have been heated immensely during the packaging process: the main sprues were horrible warped - except for some single parts including the canopies and the sprue with the cabin! Height wind width were perfect, only the boxy shape caused some headaches. But I guess I would not find anything better...
That said, the transplantation mess started. I never built any of the two donor kits before, so I carefully tried to find the best place where to cut the Vampire's nose - I ended up with a staggered solution right in front of the wing root air intakes.
The Fw 189's cabin was bit more tricky, because I had to get rid of the original wing roots and wanted to use as much space as possible, up to the rear bulkhead and together with the rear cabin window. The idea was to blend the Fw 189's roof line into the Vampire's engine section, while keeping the original air intake ducts, so that the overall arrangement would look plausible.
The result became a pretty long nose section - and at that time the tail booms were not fited yet, so I was not certain concerning overall proportions. The cabin's underside had to be improvised, and blending the boxy front end with a flat underside into the tubby, round Vampire fuselage caused some headaches. I also had to re-create the lower flank section with styrene sheet, because I had originally hoped that I could "push" the new cabin between the wing roots - but that space was occupied by the Goblin's inlet ducts.
Inside of the cabin, the original floor, bulkheads and dashboard were used, plus five bucket seats that come with the MPM kit. In order to hide the body work from the inside, side panels from 0.5mm styrene sheet were added in the cabin - with the benefit of additional stability, but also costing some space... Since the machine was built with closed cabin, a pilot was added - actually a bash of a WWII Matchbox pilot and a German officer from an ESCI tank kit. Looks pretty good and "professional". ;-)
Once the cabin was in place, lots of PSR followed and the tail booms could be fitted. To my relief, the longer nose did not look too unbalanced (and actually, design sketches for the original Mystery Jet suggest just this layout!) - but I decided to add wing tip tanks which would beef up wingspan and shift the visual mass slightly forward. They come from an 1:100 Tamiya Il-28, or better the "R" recce variant.
The only other big change concerned the nose wheel. While the OOB wheel and strut were used, the well is now located in front of the wheel and it would retract forwards, giving the nose a more balanced look - and the cabin arrangement made this change more plausible, too.
Another addition were three small porthole windows in the solid parts of the cabin flanks - one of them ending up in the middle of the cabin door on starboard, where a solid part of the canopy roof lent itself for a good place just behind the pilots' seats.
Painting and markings:
I cannot help it, but the thing looks like a design from a vintage Tintin or Yoko Tsuno comic! This was not planned or expected - and actually the paint scheme evolved step by step. I had no plan or clue what to apply - the real Mystery Jet mock-up in silver with blue trim looked sharp, but somehow I did not want blue. So I started with the interior (out of a necessity, as the fuselage had to be closed before any further work progress at some point) and settled for plushy, British colors: Cream (walls and roof) and Claret-Red (carpet and seats).
I tried to find something for the outside that would complement this choice of colors, and eventually settled on Ivory and White (upper and lower fuselage halves, respectively) with some deep red trim, plus pale grey wing surfaces. I even considered some thin golden trim lines, but I think this would have been too much?
The trim was created with decals tripes from generic sheet material, the black anti-glare panel was painted, though. As a color contrast I painted some of the upper canopy panels in translucent, light blue, and this looks very good.
The wings received a lightb treatment with thinned black ink, in order to emphasize the engravings. No post-shading was done, though, for a rather clean look.
Most markings were puzzled together; the registration G-AZRE actually belonged to a Vickers Vanguard (from the 1:144 Airfix kit), the large letters above and under the wings were created with single 45° letters (USAF style). Most stencils come from a Vampire trainer aftermarket sheet from Xtradecal, from the OOB sheet only the "No step" warnings on the wings were used.
Finally, the kit was sealed with a semi-matt coat of varnish, except for the anti-glare panel, which recived a matt coat. The three small windows received artificial panes made from Clearfix, after their rims had been painted black.
A messy project, and you better do not take a close look. But the overall elegance of this creation surprises me - the real Mystery Jet already looked sleek, and this model, despite a more blunt nose, confirms this impression. The colors work together well, too - and the thing has a dedicated retro feel about it. Tintin might be on board, as well as Elton John, both sharing a cigar on the rear seats... ;)
+++ 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:
The Me 309 project began in mid-1940, just as the Bf 109 was having its first encounters with the Spitfire in the Battle of Britain, the first aircraft to match the 109 in speed and performance. Already, Messerschmitt anticipated the need for an improved design to replace the Bf 109. The Reich Air Ministry, however, did not feel the same urgency, with the project given a low priority, resulting in the design not being finalized until the end of 1941.
The new fighter had many novel features, such as tricycle landing gear (with a nose gear strut that twisted through 90° during retraction, to a "flat" orientation under the engine) and a pressurized cockpit, which would have given it more comfortable and effective high-altitude performance. Each of the new features was first tested on a number of Bf 109F airframes, the V23 having a ventral radiator, the V31 with a radiator and tricycle landing gear, and the V30 having a pressurized cockpit.
Low government interest in the project delayed completion of the first prototype until spring 1942, and trouble with the nose wheel pushed back the 309's first flight to July. When it did fly, the Me 309's performance was satisfactory – about 50 km/h (30 mph) faster than a standard Bf 109G – but not exemplary. In fact, the Bf 109G could out-turn its intended replacement. With the addition of armament, the aircraft's speed decreased to an unacceptable level. In light of its poor performance and the much more promising development of the Focke-Wulf Fw 190D, the Me 309 in its original form was canceled.
However, the design was not dead and eventually found its way into the Me 509 (with a mid-engine layout) and the Me 609 (a heavy fighter which joined two Me 309 fuselages with a new centre wing section). By the time designs were being ironed out in the course of 1943, revolutionary turbojet engines became operational and with them new designs like the Me 262 or the He 162. These promised superior performance concerning speed, but they had only a short range and the new turbojets’ reliability was poor.
In another attempt to keep the Me 309 alive, Franz Hirschleitner, a young engineer who had formerly worked for Blohm & Voss, proposed the addition of a turbojet engine to the piston fighter as a booster. This would combine the range and reliability of the old technology with the new engine’s potential gain of speed. Having worked on the innovative Bv 141 reconnaissance aircraft before, Hirschleitner proposed an unusual solution for the Me 309 update: since as many original parts of the fighter were to be retained (what ruled out a redesign of the fuselage to carry the turbojet engine), he presented an asymmetrical layout which added a new pod with the cockpit, the armament and an underslung BMW 003 turbojet, which was connected to the Me 309 fuselage with a short wing. The Me 309 fuselage itself was virtually identical with the original fighter, just the weapons had been deleted from it (saving weight) and the former cockpit was faired over, the internal space being used for additional fuel tanks. The outer wings were taken from the Me 309, too, except for a reinforced landing gear which now retracted outwards, so that the aircraft’s track width was kept in acceptable limits. The front wheel still retracted into the Me 309 fuselage.
This aircraft, called the Me 309 T (for “Turbine” = jet engine), was envisioned as a heavy single-seat fighter, armed with four 30 mm cannon. Hardpoints under the middle wing section allowed an external ordnance of 1.000 kg (2.202 lb), including two bombs of up to 500 kg (1.100 lb) caliber each or two 300l drop tanks. Furthermore, the cockpit pod was large enough to add a second crew member under an extended canopy, so that the type could also be developed into a night fighter with a radar.
Despite initial skepticism at the Messerschmitt design bureau, Hirschleitner’s proposal was accepted and presented to the RLM in late 1943. Not surprisingly, it was rejected at first for being “too innovative”. Nevertheless, growing pressure from the Allied forces made the RLM reconsider the Hirschleitner design, since it was based on existing components and could be quickly realized. Therefore, the Me 309 T was ordered into production as the T-0 version in Spring 1944. From these initial aircraft, 12 were produced until August 1944 and used for field tests and conversion training. The T-0 was powered by a DB 603G and a BMW 003C and armed with four MK 108 machine cannon. These initial frontline tests lasted until December 1945 and the aircraft was ordered into full production as the T-1.
Just as the first production machines left the factories in April 1945, an upgraded variant, the T-2, was introduced. It shared the same airframe as the earlier variants but had an upgraded turbojet engine, a BMW 003D, which offered 10.76 kN (2,420 lbf) of thrust instead of the former 8.81 kN (1,980 lbf), together with improved reliability. The armament was upgraded, too: Two of the MK 108s were replaced by MK 103 30 mm machine cannon, a weapon that offered a much higher range and penetration power, so that the aircraft could fire effectively while keeping outside of the Allied bombers' defensive fire, which now frequently entered German airspace. Furthermore a Rüstsatz (R1) was introduced which put two additional MK 108 behind the cockpit, firing obliquely upwards as "schräge Musik" .
Despite the acceptable performance, which made it superior to pure piston-driven fighters of the time like the Republic P-47 or the North American P-51D, the Me 309 T was not very popular among the pilots. The handling on the ground was difficult, not only because of the offset front wheel, but also due to the fact that the left fuselage blocked almost the complete portside field of view. This flaw also created a significant blind spot during flight. Furthermore, getting the Me 309 T into the air without the support from the jet engine could be a gamble, too, esp. when the machine carried external loads. The BMW 003D, even though its reliability had been improved over time, was prone to failure, and the resulting lack of thrust made it a dead weight that severely hampered the aircraft's performance. All in all, only 123 machines were eventually built, with no two-seat night fighter or a trainer ever produced.
General characteristics:
Crew: one
Length: 9.46 m (31 ft 0 in)
Wingspan: 13.60 m (44 ft 7 in)
Height: 3.9 m (12 ft 10 in)
Wing area: 21.1 m² (226 sq ft)
Empty weight: 3,795 kg (8,367 lb)
Gross weight: 6,473 kg (14,271 lb)
Max takeoff weight: 7,130 kg (15,719 lb)
Powerplant:
1× Daimler-Benz DB 603G inverted V-12 liquid-cooled piston engine, 1,287 kW (1,726 hp)
1× BMW 003D (TL 109-003) turbojet with 10.76 kN (2,420 lbf) / 10,000 rpm / sea level
Performance:
Maximum speed: 840 km/h (522 mph, 464 kn) with both powerplants
695 km/h (431 mph, 383 kn) with the DB 603G only
Cruise speed: 665 km/h (413 mph, 359 kn)
Range: 1,100 km (680 mi, 590 nmi)
Service ceiling: 12,000 m (39,000 ft)
Wing loading: 256 kg/m2 (52 lb/sq ft)
Power/mass: 0.31 kW/kg (0.19 hp/lb)
Armament:
2× 30 mm (.1.181 in) MK 103 cannon
2× 30 mm (.1.181 in) MK 108 cannon
Underwing hardpoints for a total external ordnance of 1.000 kg (2.202 lb)
The kit and its assembly:
This model went through a prolonged development phase. It is based on the question whether an asymmetrical Blohm & Voss design could be made compact enough for a fighter aircraft? Aircraft like the Bv 141 reconnaissance aircraft (which actually flew) or the P-194 attack aircraft (which only existed as a paper project) were considerably bigger than typical single seat fighters.
While doing legwork I also found the relatively compact Blohm & Voss P-197 project in literature, which already came closer to my idea - I initally planned to build something along its lines, based on a Revell P-194 kit, but the latter turned out to be too big for this plan and I shelved the idea again.
However, the projected lingered in the back of my mind and was soon revived through the idea of using a Fw 190D fuselage as an alternative. But, alas, I still did not find the affair to be convincing enough for a build, also because of conceptual problems with the landing gear.
Then I eventually stumbled upon a HUMA Me 609 in the stash and considered a "modernized" asymmetrical layout with a tricycle landing gear. And this became the Me 309T.
It sounds so simple: take an aircraft model and add the cockpit pod, together with a new wing middle section. But turning this plan into hardware caused serious headaches. The biggest issue became the landing gear: the only space to stow the main landing gear would be the outer wings. Bu using the original Me 309 landing gear, which retracted inwards and already had a wide track, was impossible. So I decided to "reverse" the landing gear wells for an outward-retracting arrangement. Easier said than done, because the thin Me 309 wings come as single pieces in the HUMA kit: I had to cut out the complete well section on each wing, switch it around and re-sculpt the wings' profiles and surfaces. A lot of work!
The Me 309 fuselage was built OOB and I used the cockpit cover that comes with the Me 609 kit. The Bv P-194 cockpit pod with the jet engine was built OOB, too, but the wing attachment points had to be heavily re-sculpted because the P-194's wings are much deeper and thicker than the Me 309's. For the same reason I could not use the P-194's mid wing section - I had to scratch one from a leftover section of a VEB Plasticart 1:100 An-12, styrene sheet and putty. Messy affair, but at least it matches the outer Me 309 wings in shape and thickness.
A lot of putty was furthermore needed to finish the Me 309 fuselage and re-build all the wing/fuselage intersections. The HUMA Me 309 is a very basic affair, and fit as well as detail are mediocre, putting it in a polite fashion. The Revell P-194 is a little better, but it has many doubtful details like a pilot seat and canopy for pygmies or a poorly fitting jet exhaust section.
Thanks to the wing surgery, the Me 309's OOB landing gear could be retained - it looks pretty stalky, though, and the front wheel strut comes very close to the propeller disc.
Sice the HUMA Me 609 does not come with separate stabilizers I finally had to improvise again: I initially considered and asymmetrical layout (somewhat compensating for the cockpit pod on the starboard side with and extended span at port side), but when I saw how close the fuselages were, I settled upon an enlarged, convetional layout in the form of stabilizers from a Heller He 112.
Painting and markings:
This caused some headaches, too. I did not want a "conventional" late WWII Luftwaffe scheme, even though I wanted to use standard RLM colors. I eventually found inspiration in Me 262 recce aircraft, which frequently featured a unique paint scheme in the form of an overall RLM 76 livery onto which very fine dots or ondulating, thin lines in one or more darker contrast colors (RLM 81 and/or 83) were painted or sprayed. At first In wanted to adapt this scheme to the whole aircraft, but eventually decided to give the wings' upper surfaces a different, more "planar" scheme.
So, the whole model initially received and overall coat of RLM 76 (Humbrol 247), with the wings' undersides left in bare metal and the rudders painted in a greenish-grey primer. The cover of the DB 603 was kept in bare metal, too.
Contrast areas in RLM 81 and 83 (Braunviolett and Dunkelgrün, both from ModelMaster's Authentic line) were added onto the top of the wings, while I painted the fuselages and the fin with a semi-translucent "snake" pattern in RLM 82 (Humbrol 102).
The decals come from a Sky Models Fw 190A/F sheet, the crosses on the fuselage and under the wings come from a generic TL Modellbau sheet.
The cockpit interior as well as the landing gear wells were painted in very dark grey (Revell 09), while the landing gear struts became RLM 02 (Revell 45). The spinner received a black-and-white spiral, with black green propeller blades.
Well, I am not 100% happy with the result. While the overall model looks quite balanced, I am not happy with the finish - partly due to the massive use of putty and the fact that I had to mount parts in a fashion that the kits' manufacturers never expected to happen, but also due to the paint: The Humbrol enamels that I used turned out to be from the poor batch when the fabrication was moved to Belgium a while ago. With the result of a poor and gooey quality. That could have gone better. :-(
Nevertheless, I like the odd look of the asymmetrical design, esp. with the tricycle landing gear. From certain angles, the model looks really weird! And I am amazed how good the camouflage works - it's really disruptive.
+++ 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:
Antanas Gustaitis (March 26, 1898 – October 16, 1941) was an officer in the Lithuanian Armed Forces who modernized the Lithuanian Air Force, which at that time was part of the Lithuanian Army. He was the architect or aeronautical engineer who undertook the task to design and construct several military aircraft before WWII broke out.
Gustaitis was born in the village of Obelinė, in Javaravas county, in the Marijampolė district. He attended high school in Yaroslavl, and from there studied at the Institute of Engineering and School of Artillery in Petrograd. After joining the Lithuanian Army in 1919, he graduated from the School of Military Aviation as a Junior Lieutenant in 1920. Later that year, he saw action in the Polish-Lithuanian War. By 1922 he began to train pilots, and later became the head of the training squadron. He also oversaw the construction of aircraft for Lithuania in Italy and Czechoslovakia. Gustaitis was one of the founding members of the Aero Club of Lithuania, and later its Vice-President. He did much to promote aviation among the young people in Lithuania, especially concerning the sport of gliding. He also won the Lithuanian Chess Championship in 1922.
Between 1925 and 1928, Gustaitis studied aeronautical engineering in Paris. After his graduation he returned to Lithuania and was promoted to deputy Commander-in-Chief of Military Aviation and made chief of the Aviation Workshop (Karo Aviacijos Tiekimo Skyrius) in Kaunas. During this time, he reorganized the workshop and expanded its capability to repair aircraft as well. The aircraft he designed were named ANBO, an acronym for "Antanas Nori Būti Ore", which literally means “Antanas wants to be in the air” in Lithuanian.
Between 1925 and 1939, the ANBO design bureau developed, built and flew several trainers, reconnaissance and even fighter aircraft for the Lithuanian air force. The last projects, the ANBO VIII, a light single-engine reconnaissance bomber, and the ANBO IX, a single-seat fighter, were the most ambitious.
The ANBO IX started in 1935 as a light low-wing design with spatted, fixed landing gear and an open cockpit, powered by a British Bristol Mercury 830 hp (619 kW) 9-cylinder radial engine – a very clean all-metal design, outwardly not unlike the contemporary Japanese Nakajima Ki-27 or the Dutch Fokker D.XXI, but a much more modern construction.
A first prototype had been completed in summer 1936 and it flew for the first time on 1st of August, with good flight characteristics, but Gustaitis was not satisfied with the aircraft anymore. More powerful and aerodynamically more efficient engines had become available, and a retractable landing gear would improve the performance of the ANBO IX even more, so that the aircraft was heavily modified during the rest of the year.
The large Mercury was replaced with a Pratt & Whitney R-1535 Twin Wasp Junior, a two-row 14-cylinder radial engine with 825 hp and a much smaller frontal area that allowed the ANBO IX’s cowling to be wrapped much tighter around the engine than the Mercury’s former Townend ring, leading to a very aerodynamic overall shape. The oil cooler, formerly mounted starboard flank in front of the cockpit, was moved into a mutual fairing with the carburetor intake under the fuselage behind the engine.
The wings had to be modified to accommodate a retractable main landing gear: to make space for suitable wells, the inner wing section in front of the main spar was deepened, resulting in a kinked leading edge of the wing. The landing gear retracted inwards and was initially completely covered. The tail remained fixed, though, even though the former simple tailskid was replaced with a pressurized rubber wheel for better handling on paved runways.
These measures alone improved the ANBO IX’s top speed by 25 mph (40 km/h), and to improve the pilot’s working conditions the originally open cockpit with just a windscreen and a small headrest fairing was covered with a fully closed clear canopy and an enlarged aerodynamic spinal fairing that ended at the fin’s base. This additional space was used to introduce another contemporary novel feature on board: a radio set.
Together with some other refinements on a second prototype (e. g. a smaller diameter of the front fuselage section, an even more streamlined cowling that now also covered two synchronized machine guns above the engine and a recontoured wing/fuselage intersection), which flew in September 1937, top speed rose by another 6 mph (10 km/h) from 460 km/h (285 mph) of the original aircraft to a competitive 510 km/h (317 mph) that put the ANBO IX on a par with many other contemporary European fighter aircraft.
In this form the ANBO IX was cleared for production in early 1938, even though the desired R-1535 Twin Wasp Junior was not cleared for export or license production. With the Manfréd Weiss WM K.14 engine from Hungary, a derivative of the French Gnôme-Rhône 14 K with 900 hp, a similar, even slightly more powerful replacement could be quickly found, even though the adaptation of the airframe to the different powerplant delayed production by four months. Beyond a new engine mount, the machine guns in the fuselage and its synchronization gearbox had to be deleted, but the weapons could be moved into the outer wings, so that a total of four machine guns as main armament was retained. Additionally, a single ventral hardpoint was added that could either carry a single bomb with its respective shackles or – more frequently – a drop tank that extended the fighter’s rather limited range.
The Lithuanian air force ordered fifty of these machines, primarily to replace its Fiat CR.20 biplane fighters, and several regional export customers like Finland, Estonia and Bulgaria showed interest in the modern ANBO IX, too. Due to the complex all-metal airframe and limited workshop capacities, however, production started only slowly.
The first batch of six ANBO IXs arrived at Lithuanian frontline units in November 1939, more were in the ANBO workshops in Kaunas at that time in various stages of assembly. In 1940, the Lithuanian Air Force consisted of eight Air Squadrons, including reconnaissance, fighter, bomber and training units. However, only the 5th fighter squadron had by the time enough ANBO IXs and trained pilots to be fully operational with the new type. Air Force bases had been established in the cities and towns of Kaunas/Žagariškės, Šiauliai /Zokniai (Zokniai airfield), Panevėžys /Pajuostis. In the summertime, airports in the cities of Palanga and Rukla were also used. A total of 117 aircraft and 230 pilots and observers were listed in the books at that time, but less than ten of them were modern ANBO IX fighters, and probably only half of them were actually operational.
Following the Soviet occupation of Lithuania, however, the Lithuanian Air Force was formally disbanded on October 23, 1940. Part of Lithuanian Air Force (77 senior officers, 72 junior officers, 59 privates, 20 aircraft) was reorganized into Red Army's 29th Territorial Rifle Corps Aviation, also referred to as National Squadron (Tautinė eskadrilė). Other planes and equipment were taken over by Red Army's Air Force Bases No. 13 and 213. About third of Tautinė eskadrilė's personnel latter suffered repressions by Soviet authorities, significant share joined June uprising, after the start of German invasion into Soviet Union several pilots of Tautinė eskadrilė and fewer than six planes withdrew with the Soviet army.
General characteristics:
Crew: 1
Length: 7.71 m (25 ft 2¾ in)
Wingspan: 10.22 m (33 ft 5¾ in)
Wing area: 16 m2 (170 sq ft)
Height: 2.62 m (8 ft 7 in)
Empty weight: 2,070 kg (4,564 lb)
Gross weight: 2,520 kg (5,556 lb)
Powerplant:
1× Manfred Weiss WM K.14 (Gnome-Rhône 14Kfrs Mistral-Major) 14-cyinder air-cooled radial
piston engine with 647 kW (900 hp), driving a 3-bladed constant-speed metal propeller
Performance:
Maximum speed: 510 km/h (320 mph, 280 kn)
Minimum control speed: 113 km/h (70 mph, 61 kn)
Range: 730 km (450 mi, 390 nmi) on internal fuel
1.000 km (621 mi, 543 nmi) with 300 l drop tank
Service ceiling: 10.000 m (33,000 ft)
Time to altitude: 4'41" to 5,000 meters
Wing loading: 157,5 kg/m² (32.7 lb/sq ft)
Power/mass: 3.89 kg/kW (6.17 lb/hp)
Take-off run to 8 m (26 ft): 270 m (886 ft)
Landing run from 8 m (26 ft): 340 m (1,115 ft)
Armament:
4x 7.7 mm (0.303 in) fixed forward-firing M1919 Browning machine guns with 500 rpg
in the outer wings
1x ventral hardpoint for a single 250 kg (550 lb) bomb or a 300 l (66 imp gal) drop tank
The kit and its assembly:
This small aircraft model is the result of a spontaneous kitbashing flash, when I dug through the sprue piles and the spares box. It started with a leftover fuselage from a Mistercraft PZL P-7 fighter, and further searches revealed the wings from a PM Model Fokker D.XXI and the sawn-off wings from a Hobby Boss MS.406. The sprue stash came up with other useful parts like small stabilizers and a landing gear – and it turned out to be the rest of the MS.406, which had originally been butchered to be mated with the P-7 wings to become my fictional Polish RWD-24 fighter prototype. So, as a serious recycling project, I decided to accept the challenge and use the remains of the P-7 and the MS.406 to create a “counterpart” to the RWD-24, and it became the fictional ANBO IX.
While the ingredients for a basic airframe were now available, some parts were still missing. Most important: an engine. One option was an early Merlin, left over from a Spitfire, but due to the circular P-7 fuselage I preferred a radial engine. With the cowling from a Japanese Mitsubishi Ha-102 two-row radial (from an Airfix Ki-46 “Dinah”) I found a suitable and very streamlined donor, which received a small three-blade propeller with a scratched spinner on a metal axis inside.
The cockpit and the canopy caused more headaches, because the P-7 has an open cockpit with a rather wide opening. For a fighter with a retractable landing gear this would hardly work anymore and finding a solution as well as a suitable donor piece took a while. I initially wanted to use a kind of bubble canopy (with struts, so that it would not look too modern), but eventually rejected this because the proportions would have looked odd – and the overall style would have been too modern.
So I switched to an early Spitfire canopy, which had a good size for the small aircraft, even though it called for a spinal fairing – the latter became the half from a drop tank (IIRC from an Airfix P-61?).
Lots of PSR was necessary everywhere to blend the disparate parts together. The cockpit opening had to be partly filled and reshaped, blending both canopy and spine into the hull took several layers.
The area in front of the cockpit (originally holding the P-7’s shoulder-mounted wings) had to be re-sculpted and blended into the Ki-46 cowling.
The ventral area between the wings had also to be fully sculpted with putty, and huge gaps along the wing roots on the wings’ upper surfaces had to be filled and formed, too. No wonder that many surface details disappeared along the way… Nevertheless, the effort was worthwhile, because the resulting airframe, esp. the sleek fuselage, looks very aerodynamic, almost like a Thirties air speed record contender?
Painting and markings:
This is where the real trouble came to play. It took a while to find a suitable/authentic paint scheme for a pre-WWII Lithuanian aircraft, and I took inspiration from mid-Thirties Letov S.20 biplane fighters and the real ANBO VIII light bomber prototype. Apparently, a two-tone camouflage in two shades of green were an option, even though the tones appear debatable. The only real-life reference was a b/w picture of an S.20, and it showed a good contrast between the greens, so that my first choice were Humbrol 120 (FS 34227) and 172 (Satin Dark Green). However: 120 turned out to be much too pale, and the 172 had a somewhat grainy consistency. Leaving a horrible finish on the already less-than-perfect PSR mess of the model.
With a heavy heart I eventually decided to remove the initial coat of enamel paint with a two-day bath in foamed oven cleaner, which did the job but also worked on the putty. Disaster struck when one wing came loose while cleaning the model, and the canopy came off, too…
Repairs were possible, but did not improve the model’s surface finish – but I eventually pulled a second coat of paint through, this time with slightly different green tones: a mix of Humbrol 80 (Grass Green) and Revell 360 (fern Green), resulting in a rich but rather yellow-ish tone, and Humbrol 245 (RLM 75, Graugrün), as a subdued contrast. The result, though, reminded a lot of Finnish WWII aircraft, so that I gave the aircraft an NMF cowling (again inspired by the ANBO VIII prototype) and a very light grey (Modelmaster 2077, RLM 63) underside with a low waterline. This gave the model a somewhat Italian touch?
The national markings came from two different Blue Rider decal sheets for modern Lithuanian aircraft, the tactical code and the knight helmet as squadron emblem came from a French Dewoitine D.520 (PrintScale sheet).
After a black ink washing the kit received light panel post-shading to virtually restore some of the missing surface details, some weathering with Tamiya Smoke and silver was done and the model received a final overall coat of matt acrylic varnish.
Well, I am not happy with the outcome – mostly because of the painting mishaps and the resulting collateral damage overall. However, the kitbashed aircraft looks pretty conclusive and plays the role of one of the many European pre-WWII monoplane fighters with modern features like a retractable landing gear and a closed canopy well, it’s a very subtle result.
+++ 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 model, the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
The Me 309 project began in mid-1940, just as the Bf 109 was having its first encounters with the Spitfire in the Battle of Britain, the first aircraft to match the 109 in speed and performance. Already, Messerschmitt anticipated the need for an improved design to replace the Bf 109. The Reich Air Ministry, however, did not feel the same urgency, with the project given a low priority, resulting in the design not being finalized until the end of 1941.
The new fighter had many novel features, such as tricycle landing gear (with a nose gear strut that twisted through 90° during retraction, to a "flat" orientation under the engine) and a pressurized cockpit, which would have given it more comfortable and effective high-altitude performance. Each of the new features was first tested on a number of Bf 109F airframes, the V23 having a ventral radiator, the V31 with a radiator and tricycle landing gear, and the V30 having a pressurized cockpit.
Low government interest in the project delayed completion of the first prototype until spring 1942, and trouble with the nose wheel pushed back the 309's first flight to July. When it did fly, the Me 309's performance was satisfactory – about 50 km/h (30 mph) faster than a standard Bf 109G – but not exemplary. In fact, the Bf 109G could out-turn its intended replacement. With the addition of armament, the aircraft's speed decreased to an unacceptable level. In light of its poor performance and the much more promising development of the Focke-Wulf Fw 190D, the Me 309 in its original form was canceled.
However, the design was not dead and eventually found its way into the Me 509 (with a mid-engine layout) and the Me 609 (a heavy fighter which joined two Me 309 fuselages with a new centre wing section). By the time designs were being ironed out in the course of 1943, revolutionary turbojet engines became operational and with them new designs like the Me 262 or the He 162. These promised superior performance concerning speed, but they had only a short range and the new turbojets’ reliability was poor.
In another attempt to keep the Me 309 alive, Franz Hirschleitner, a young engineer who had formerly worked for Blohm & Voss, proposed the addition of a turbojet engine to the piston fighter as a booster. This would combine the range and reliability of the old technology with the new engine’s potential gain of speed. Having worked on the innovative Bv 141 reconnaissance aircraft before, Hirschleitner proposed an unusual solution for the Me 309 update: since as many original parts of the fighter were to be retained (what ruled out a redesign of the fuselage to carry the turbojet engine), he presented an asymmetrical layout which added a new pod with the cockpit, the armament and an underslung BMW 003 turbojet, which was connected to the Me 309 fuselage with a short wing. The Me 309 fuselage itself was virtually identical with the original fighter, just the weapons had been deleted from it (saving weight) and the former cockpit was faired over, the internal space being used for additional fuel tanks. The outer wings were taken from the Me 309, too, except for a reinforced landing gear which now retracted outwards, so that the aircraft’s track width was kept in acceptable limits. The front wheel still retracted into the Me 309 fuselage.
This aircraft, called the Me 309 T (for “Turbine” = jet engine), was envisioned as a heavy single-seat fighter, armed with four 30 mm cannon. Hardpoints under the middle wing section allowed an external ordnance of 1.000 kg (2.202 lb), including two bombs of up to 500 kg (1.100 lb) caliber each or two 300l drop tanks. Furthermore, the cockpit pod was large enough to add a second crew member under an extended canopy, so that the type could also be developed into a night fighter with a radar.
Despite initial skepticism at the Messerschmitt design bureau, Hirschleitner’s proposal was accepted and presented to the RLM in late 1943. Not surprisingly, it was rejected at first for being “too innovative”. Nevertheless, growing pressure from the Allied forces made the RLM reconsider the Hirschleitner design, since it was based on existing components and could be quickly realized. Therefore, the Me 309 T was ordered into production as the T-0 version in Spring 1944. From these initial aircraft, 12 were produced until August 1944 and used for field tests and conversion training. The T-0 was powered by a DB 603G and a BMW 003C and armed with four MK 108 machine cannon. These initial frontline tests lasted until December 1945 and the aircraft was ordered into full production as the T-1.
Just as the first production machines left the factories in April 1945, an upgraded variant, the T-2, was introduced. It shared the same airframe as the earlier variants but had an upgraded turbojet engine, a BMW 003D, which offered 10.76 kN (2,420 lbf) of thrust instead of the former 8.81 kN (1,980 lbf), together with improved reliability. The armament was upgraded, too: Two of the MK 108s were replaced by MK 103 30 mm machine cannon, a weapon that offered a much higher range and penetration power, so that the aircraft could fire effectively while keeping outside of the Allied bombers' defensive fire, which now frequently entered German airspace. Furthermore a Rüstsatz (R1) was introduced which put two additional MK 108 behind the cockpit, firing obliquely upwards as "schräge Musik" .
Despite the acceptable performance, which made it superior to pure piston-driven fighters of the time like the Republic P-47 or the North American P-51D, the Me 309 T was not very popular among the pilots. The handling on the ground was difficult, not only because of the offset front wheel, but also due to the fact that the left fuselage blocked almost the complete portside field of view. This flaw also created a significant blind spot during flight. Furthermore, getting the Me 309 T into the air without the support from the jet engine could be a gamble, too, esp. when the machine carried external loads. The BMW 003D, even though its reliability had been improved over time, was prone to failure, and the resulting lack of thrust made it a dead weight that severely hampered the aircraft's performance. All in all, only 123 machines were eventually built, with no two-seat night fighter or a trainer ever produced.
General characteristics:
Crew: one
Length: 9.46 m (31 ft 0 in)
Wingspan: 13.60 m (44 ft 7 in)
Height: 3.9 m (12 ft 10 in)
Wing area: 21.1 m² (226 sq ft)
Empty weight: 3,795 kg (8,367 lb)
Gross weight: 6,473 kg (14,271 lb)
Max takeoff weight: 7,130 kg (15,719 lb)
Powerplant:
1× Daimler-Benz DB 603G inverted V-12 liquid-cooled piston engine, 1,287 kW (1,726 hp)
1× BMW 003D (TL 109-003) turbojet with 10.76 kN (2,420 lbf) / 10,000 rpm / sea level
Performance:
Maximum speed: 840 km/h (522 mph, 464 kn) with both powerplants
695 km/h (431 mph, 383 kn) with the DB 603G only
Cruise speed: 665 km/h (413 mph, 359 kn)
Range: 1,100 km (680 mi, 590 nmi)
Service ceiling: 12,000 m (39,000 ft)
Wing loading: 256 kg/m2 (52 lb/sq ft)
Power/mass: 0.31 kW/kg (0.19 hp/lb)
Armament:
2× 30 mm (.1.181 in) MK 103 cannon
2× 30 mm (.1.181 in) MK 108 cannon
Underwing hardpoints for a total external ordnance of 1.000 kg (2.202 lb)
The kit and its assembly:
This model went through a prolonged development phase. It is based on the question whether an asymmetrical Blohm & Voss design could be made compact enough for a fighter aircraft? Aircraft like the Bv 141 reconnaissance aircraft (which actually flew) or the P-194 attack aircraft (which only existed as a paper project) were considerably bigger than typical single seat fighters.
While doing legwork I also found the relatively compact Blohm & Voss P-197 project in literature, which already came closer to my idea - I initally planned to build something along its lines, based on a Revell P-194 kit, but the latter turned out to be too big for this plan and I shelved the idea again.
However, the projected lingered in the back of my mind and was soon revived through the idea of using a Fw 190D fuselage as an alternative. But, alas, I still did not find the affair to be convincing enough for a build, also because of conceptual problems with the landing gear.
Then I eventually stumbled upon a HUMA Me 609 in the stash and considered a "modernized" asymmetrical layout with a tricycle landing gear. And this became the Me 309T.
It sounds so simple: take an aircraft model and add the cockpit pod, together with a new wing middle section. But turning this plan into hardware caused serious headaches. The biggest issue became the landing gear: the only space to stow the main landing gear would be the outer wings. Bu using the original Me 309 landing gear, which retracted inwards and already had a wide track, was impossible. So I decided to "reverse" the landing gear wells for an outward-retracting arrangement. Easier said than done, because the thin Me 309 wings come as single pieces in the HUMA kit: I had to cut out the complete well section on each wing, switch it around and re-sculpt the wings' profiles and surfaces. A lot of work!
The Me 309 fuselage was built OOB and I used the cockpit cover that comes with the Me 609 kit. The Bv P-194 cockpit pod with the jet engine was built OOB, too, but the wing attachment points had to be heavily re-sculpted because the P-194's wings are much deeper and thicker than the Me 309's. For the same reason I could not use the P-194's mid wing section - I had to scratch one from a leftover section of a VEB Plasticart 1:100 An-12, styrene sheet and putty. Messy affair, but at least it matches the outer Me 309 wings in shape and thickness.
A lot of putty was furthermore needed to finish the Me 309 fuselage and re-build all the wing/fuselage intersections. The HUMA Me 309 is a very basic affair, and fit as well as detail are mediocre, putting it in a polite fashion. The Revell P-194 is a little better, but it has many doubtful details like a pilot seat and canopy for pygmies or a poorly fitting jet exhaust section.
Thanks to the wing surgery, the Me 309's OOB landing gear could be retained - it looks pretty stalky, though, and the front wheel strut comes very close to the propeller disc.
Sice the HUMA Me 609 does not come with separate stabilizers I finally had to improvise again: I initially considered and asymmetrical layout (somewhat compensating for the cockpit pod on the starboard side with and extended span at port side), but when I saw how close the fuselages were, I settled upon an enlarged, convetional layout in the form of stabilizers from a Heller He 112.
Painting and markings:
This caused some headaches, too. I did not want a "conventional" late WWII Luftwaffe scheme, even though I wanted to use standard RLM colors. I eventually found inspiration in Me 262 recce aircraft, which frequently featured a unique paint scheme in the form of an overall RLM 76 livery onto which very fine dots or ondulating, thin lines in one or more darker contrast colors (RLM 81 and/or 83) were painted or sprayed. At first In wanted to adapt this scheme to the whole aircraft, but eventually decided to give the wings' upper surfaces a different, more "planar" scheme.
So, the whole model initially received and overall coat of RLM 76 (Humbrol 247), with the wings' undersides left in bare metal and the rudders painted in a greenish-grey primer. The cover of the DB 603 was kept in bare metal, too.
Contrast areas in RLM 81 and 83 (Braunviolett and Dunkelgrün, both from ModelMaster's Authentic line) were added onto the top of the wings, while I painted the fuselages and the fin with a semi-translucent "snake" pattern in RLM 82 (Humbrol 102).
The decals come from a Sky Models Fw 190A/F sheet, the crosses on the fuselage and under the wings come from a generic TL Modellbau sheet.
The cockpit interior as well as the landing gear wells were painted in very dark grey (Revell 09), while the landing gear struts became RLM 02 (Revell 45). The spinner received a black-and-white spiral, with black green propeller blades.
Well, I am not 100% happy with the result. While the overall model looks quite balanced, I am not happy with the finish - partly due to the massive use of putty and the fact that I had to mount parts in a fashion that the kits' manufacturers never expected to happen, but also due to the paint: The Humbrol enamels that I used turned out to be from the poor batch when the fabrication was moved to Belgium a while ago. With the result of a poor and gooey quality. That could have gone better. :-(
Nevertheless, I like the odd look of the asymmetrical design, esp. with the tricycle landing gear. From certain angles, the model looks really weird! And I am amazed how good the camouflage works - it's really disruptive.
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
In the period immediately after the Second World War the world found itself with hundreds of thousands of surplus aircraft and just as many surplus aviators. Most aircraft would meet the salvage blade and the smelter’s fiery furnace. Most pilots would return to civilian life, the bulk of them never to fly again.
With the plethora of military aircraft languishing in desert lots awaiting a certain fate, some of those disenfranchised aviators and aircraft designers would look to new growing markets for salvation. One of these emerging markets was the new-found requirement for fast and capable business transport aircraft for executives looking to link business interests across the vast distances of the nation. With few purpose-built business aircraft available for executives, medium bombers became the drug of choice for high flying big shots—fast, powerful and, with the right interior appointments, a visual statement of their success and power.
In early variants like the Executive, On Mark simply removed military equipment and replaced them with fairings and civil avionics, sealed the bomb bay doors, soundproofed the cabin, and added additional cabin windows. Later models had special wing spars designed to give more interior room, pressurization and equipment from bigger surplus aircraft such as DC-6 brakes and flat glass cockpit windows. It was an elegant mashing together of equipment, but it was not a true business aircraft.
In the Sixties, Jet Craft Ltd. of Las Vegas, Nevada, went for a different interpretation of the same topic: The company had purchased a number of former Royal Australian Air Force Vampire trainers and RCAF single-seaters, which were to be converted to a new design for a business aircraft called 'Mystery Jet', offering 4-8-seats.
Jet Craft worked with stellar British conversion experts Aviation Traders to do the structural design work. Aviation Traders Limited (ATL) was a war-surplus aircraft and spares trader formed in 1947. In 1949, it began maintaining aircraft used by some of Britain’s contemporary independent airlines on the Berlin Airlift. In the early 1950s, it branched out into aircraft conversions and manufacturing.
Aviation Traders worked on the drawings and the structural mock-ups. A full-scale mock-up of the Mystery Jet languished at Southend airport for a decade, trying to lure owners and operators into buying it. And this actually happened: about twenty former Vampire airframes were converted into Mystery Jet business aircraft, tailored to the customers' needs and desires.
The Mystery Jet was just what it looked like: a former De Havilland Vampire with a new, roomy nose section grafted onto it. The cabin was pressurized, and was available in two different lengths (130 and 160 inches long, with two or three rows of seats and reflected in the aircraft's title) and several window and door options - the most exotic option being the "Landaulet" cabin which featured a panoramic roof/window installation over the rear pair of seats (or, alternatively, a two-seat bench).
The original Goblin engine was retained, CG was retained due to the fact that the new cabin was, despite being considerably longer than the Vampire's nose, the biggest version being more than 8 feet longer. The new front section was much lighter, though, e. g. through the loss of the heavy cannons and their armament, as well as some more military avionics. The loss of fuel capacity through the enlarged cabin was compensated through fixed wing tip tanks, so that range was on par with the former military jet, just top speed and ceiling were slightly inferior.
Anyway, prices were steep and from the United States more modern and economical offerings ruled the market. Maintaining a former military jet was also a costly business, so, consequently, after a slight buzz (more of a hum, actually) in the early Seventies, the Mystery Jet and Jet Craft of Las Vegas, also fuelled by some dubious business practices by the company's owner, disappeared. Even further developments of the original concept, e .g. with a wide body for up to 14 passengers and two engines, would not save the Mystery Jet from failure.
General characteristics:
Crew: 1 pilot plus 5-7 passengers
Length (Mystery Jet 160): 38 ft 5 in (11.73 m)
Wingspan incl. tip tanks: 39 ft 7 1/2 in (12.09 m)
Height: 8 ft 10 in (2.69 m)
Wing area: 262 ft² (24.34 m²)
Empty weight: 7,283 lb (3,304 kg)
Max. take-off weight: 12,390 lb (5,620 kg)
Powerplant:
1× de Havilland Goblin 3 centrifugal turbojet, rated at 3,350 lbf (14.90 kN)
Performance:
Maximum speed: 516 mph (832 km/h)
Cruising speed: 400 mph (644 km/h)
Range: 1,220 mi (1,960 km)
Service ceiling: 37,700 ft (11,500 m)
Armament:
None
The kit and its assembly:
The first finished work in 2017 is a different kind of whif, one of the few civilian models in my collection. This conversion looks sick, but ,as weird as it may seem, the Business-Jet-From-Vintage-Vampires idea was real. For more information, and the source from where some of the backgound story was gathered, please check:
www.vintagewings.ca/VintageNews/Stories/tabid/116/article...
Anyway, my build is just a personal interpretation of the original concept, not a true model of the Mystery Jet. In fact, this was limited through the donor parts for this kitbash.
The rear end was the smaller problem: Airfix offers a very good Vampire T.11 trainer with excellent detail and fit - the passenger cabin was the bigger challenge. Finding "something" that would fit in shape and especialsl size was not easy - my first choice was a nose section from a vintage 1:100 Antonow An-24 from VEB Plasticart (still much too wide, though), and the best solution came as an accidental find in a local model kit shop where I found a heavily discounted MPM Focke Wulf Fw 189 B-0 trainer.
The reason: the kit was complete, but the bag holding the sprues must have been heated immensely during the packaging process: the main sprues were horrible warped - except for some single parts including the canopies and the sprue with the cabin! Height wind width were perfect, only the boxy shape caused some headaches. But I guess I would not find anything better...
That said, the transplantation mess started. I never built any of the two donor kits before, so I carefully tried to find the best place where to cut the Vampire's nose - I ended up with a staggered solution right in front of the wing root air intakes.
The Fw 189's cabin was bit more tricky, because I had to get rid of the original wing roots and wanted to use as much space as possible, up to the rear bulkhead and together with the rear cabin window. The idea was to blend the Fw 189's roof line into the Vampire's engine section, while keeping the original air intake ducts, so that the overall arrangement would look plausible.
The result became a pretty long nose section - and at that time the tail booms were not fited yet, so I was not certain concerning overall proportions. The cabin's underside had to be improvised, and blending the boxy front end with a flat underside into the tubby, round Vampire fuselage caused some headaches. I also had to re-create the lower flank section with styrene sheet, because I had originally hoped that I could "push" the new cabin between the wing roots - but that space was occupied by the Goblin's inlet ducts.
Inside of the cabin, the original floor, bulkheads and dashboard were used, plus five bucket seats that come with the MPM kit. In order to hide the body work from the inside, side panels from 0.5mm styrene sheet were added in the cabin - with the benefit of additional stability, but also costing some space... Since the machine was built with closed cabin, a pilot was added - actually a bash of a WWII Matchbox pilot and a German officer from an ESCI tank kit. Looks pretty good and "professional". ;-)
Once the cabin was in place, lots of PSR followed and the tail booms could be fitted. To my relief, the longer nose did not look too unbalanced (and actually, design sketches for the original Mystery Jet suggest just this layout!) - but I decided to add wing tip tanks which would beef up wingspan and shift the visual mass slightly forward. They come from an 1:100 Tamiya Il-28, or better the "R" recce variant.
The only other big change concerned the nose wheel. While the OOB wheel and strut were used, the well is now located in front of the wheel and it would retract forwards, giving the nose a more balanced look - and the cabin arrangement made this change more plausible, too.
Another addition were three small porthole windows in the solid parts of the cabin flanks - one of them ending up in the middle of the cabin door on starboard, where a solid part of the canopy roof lent itself for a good place just behind the pilots' seats.
Painting and markings:
I cannot help it, but the thing looks like a design from a vintage Tintin or Yoko Tsuno comic! This was not planned or expected - and actually the paint scheme evolved step by step. I had no plan or clue what to apply - the real Mystery Jet mock-up in silver with blue trim looked sharp, but somehow I did not want blue. So I started with the interior (out of a necessity, as the fuselage had to be closed before any further work progress at some point) and settled for plushy, British colors: Cream (walls and roof) and Claret-Red (carpet and seats).
I tried to find something for the outside that would complement this choice of colors, and eventually settled on Ivory and White (upper and lower fuselage halves, respectively) with some deep red trim, plus pale grey wing surfaces. I even considered some thin golden trim lines, but I think this would have been too much?
The trim was created with decals tripes from generic sheet material, the black anti-glare panel was painted, though. As a color contrast I painted some of the upper canopy panels in translucent, light blue, and this looks very good.
The wings received a lightb treatment with thinned black ink, in order to emphasize the engravings. No post-shading was done, though, for a rather clean look.
Most markings were puzzled together; the registration G-AZRE actually belonged to a Vickers Vanguard (from the 1:144 Airfix kit), the large letters above and under the wings were created with single 45° letters (USAF style). Most stencils come from a Vampire trainer aftermarket sheet from Xtradecal, from the OOB sheet only the "No step" warnings on the wings were used.
Finally, the kit was sealed with a semi-matt coat of varnish, except for the anti-glare panel, which recived a matt coat. The three small windows received artificial panes made from Clearfix, after their rims had been painted black.
A messy project, and you better do not take a close look. But the overall elegance of this creation surprises me - the real Mystery Jet already looked sleek, and this model, despite a more blunt nose, confirms this impression. The colors work together well, too - and the thing has a dedicated retro feel about it. Tintin might be on board, as well as Elton John, both sharing a cigar on the rear seats... ;)
+++ 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 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 authentic facts. BEWARE!
Some background:
The English Electric Skyspark was a British fighter aircraft that served as an interceptor during the 1960s, the 1970s and into the late 1980s. It remains the only UK-designed-and-built fighter capable of Mach 2. The Skyspark was designed, developed, and manufactured by English Electric, which was later merged into the newly-formed British Aircraft Corporation. Later the type was marketed as the BAC Skyspark.
The specification for the aircraft followed the cancellation of the Air Ministry's 1942 E.24/43 supersonic research aircraft specification which had resulted in the Miles M.52 program. W.E.W. "Teddy" Petter, formerly chief designer at Westland Aircraft, was a keen early proponent of Britain's need to develop a supersonic fighter aircraft. In 1947, Petter approached the Ministry of Supply (MoS) with his proposal, and in response Specification ER.103 was issued for a single research aircraft, which was to be capable of flight at Mach 1.5 (1,593 km/h) and 50,000 ft (15,000 m).
Petter initiated a design proposal with F W "Freddie" Page leading the design and Ray Creasey responsible for the aerodynamics. As it was designed for Mach 1.5, it had a 40° swept wing to keep the leading edge clear of the Mach cone. To mount enough power into the airframe, two engines were installed, in an unusual, stacked layout and with a high tailplane This proposal was submitted in November 1948, and in January 1949 the project was designated P.1 by English Electric. On 29 March 1949 MoS granted approval to start the detailed design, develop wind tunnel models and build a full-size mock-up.
The design that had developed during 1948 evolved further during 1949 to further improve performance. To achieve Mach 2 the wing sweep was increased to 60° with the ailerons moved to the wingtips. In late 1949, low-speed wind tunnel tests showed that a vortex was generated by the wing which caused a large downwash on the initial high tailplane; this issue was solved by lowering the tail below the wing. Following the resignation of Petter, Page took over as design team leader for the P.1. In 1949, the Ministry of Supply had issued Specification F23/49, which expanded upon the scope of ER103 to include fighter-level manoeuvring. On 1 April 1950, English Electric received a contract for two flying airframes, as well as one static airframe, designated P.1.
The Royal Aircraft Establishment disagreed with Petter's choice of sweep angle (60 degrees) and the stacked engine layout, as well as the low tailplane position, was considered to be dangerous, too. To assess the effects of wing sweep and tailplane position on the stability and control of Petter's design Short Brothers were issued a contract, by the Ministry of Supply, to produce the Short SB.5 in mid-1950. This was a low-speed research aircraft that could test sweep angles from 50 to 69 degrees and tailplane positions high or low. Testing with the wings and tail set to the P.1 configuration started in January 1954 and confirmed this combination as the correct one. The proposed 60-degree wing sweep was retained, but the stacked engines had to give way to a more conventional configuration with two engines placed side-by-side in the tail, but still breathing through a mutual nose air intake.
From 1953 onward, the first three prototype aircraft were hand-built at Samlesbury. These aircraft had been assigned the aircraft serials WG760, WG763, and WG765 (the structural test airframe). The prototypes were powered by un-reheated Armstrong Siddeley Sapphire turbojets, as the selected Rolls-Royce Avon engines had fallen behind schedule due to their own development problems. Since there was not much space in the fuselage for fuel, the thin wings became the primary fuel tanks and since they also provided space for the stowed main undercarriage the fuel capacity was relatively small, giving the prototypes an extremely limited endurance. The narrow tires housed in the thin wings rapidly wore out if there was any crosswind component during take-off or landing. Outwardly, the prototypes looked very much like the production series, but they were distinguished by the rounded-triangular air intake with no center-body at the nose, short fin, and lack of operational equipment.
On 9 June 1952, it was decided that there would be a second phase of prototypes built to develop the aircraft toward achieving Mach 2.0 (2,450 km/h); these were designated P.1B while the initial three prototypes were retroactively reclassified as P.1A. P.1B was a significant improvement on P.1A. While it was similar in aerodynamics, structure and control systems, it incorporated extensive alterations to the forward fuselage, reheated Rolls Royce Avon R24R engines, a conical center body inlet cone, variable nozzle reheat and provision for weapons systems integrated with the ADC and AI.23 radar. Three P.1B prototypes were built, assigned serials XA847, XA853 and XA856.
In May 1954, WG760 and its support equipment were moved to RAF Boscombe Down for pre-flight ground taxi trials; on the morning of 4 August 1954, WG760 flew for the first time from Boscombe Down. One week later, WG760 officially achieved supersonic flight for the first time, having exceeded the speed of sound during its third flight. While WG760 had proven the P.1 design to be viable, it was plagued by directional stability problems and a dismal performance: Transonic drag was much higher than expected, and the aircraft was limited to Mach 0.98 (i.e. subsonic), with a ceiling of just 48,000 ft (14,630 m), far below the requirements.
To solve the problem and save the P.1, Petter embarked on a major redesign, incorporating the recently discovered area rule, while at the same time simplifying production and maintenance. The redesign entailed a new, narrower canopy, a revised air intake, a pair of stabilizing fins under the rear fuselage, and a shallow ventral fairing at the wings’ trailing edge that not only reduced the drag coefficient along the wing/fuselage intersection, it also provided space for additional fuel.
On 4 April 1957 the modified P.1B (XA847) made the first flight, immediately exceeding Mach 1. During the early flight trials of the P.1B, speeds in excess of 1,000 mph were achieved daily.
In late October 1958, the plane was officially presented. The event was celebrated in traditional style in a hangar at Royal Aircraft Establishment (RAE) Farnborough, with the prototype XA847 having the name ‘Skyspark’ freshly painted on the nose in front of the RAF Roundel, which almost covered it. A bottle of champagne was put beside the nose on a special rig which allowed the bottle to safely be smashed against the side of the aircraft.
On 25 November 1958 the P.1B XA847 reached Mach 2 for the first time. This made it the second Western European aircraft to reach Mach 2, the first one being the French Dassault Mirage III just over a month earlier on 24 October 1958
The first operational Skyspark, designated Skyspark F.1, was designed as a pure interceptor to defend the V Force airfields in conjunction with the "last ditch" Bristol Bloodhound missiles located either at the bomber airfield, e.g. at RAF Marham, or at dedicated missile sites near to the airfield, e.g. at RAF Woodhall Spa near the Vulcan station RAF Coningsby. The bomber airfields, along with the dispersal airfields, would be the highest priority targets in the UK for enemy nuclear weapons. To best perform this intercept mission, emphasis was placed on rate-of-climb, acceleration, and speed, rather than range – originally a radius of operation of only 150 miles (240 km) from the V bomber airfields was specified – and endurance. Armament consisted of a pair of 30 mm ADEN cannon in front of the cockpit, and two pylons for IR-guided de Havilland Firestreak air-to-air missiles were added to the lower fuselage flanks. These hardpoints could, alternatively, carry pods with unguided 55 mm air-to-air rockets. The Ferranti AI.23 onboard radar provided missile guidance and ranging, as well as search and track functions.
The next two Skyspark variants, the Skyspark F.1A and F.2, incorporated relatively minor design changes, but for the next variant, the Skyspark F.3, they were more extensive: The F.3 had higher thrust Rolls-Royce Avon 301R engines, a larger squared-off fin that improved directional stability at high speed further and a strengthened inlet cone allowing a service clearance to Mach 2.0 (2,450 km/h; the F.1, F.1A and F.2 were all limited to Mach 1.7 (2,083 km/h). An upgraded A.I.23B radar and new, radar-guided Red Top missiles offered a forward hemisphere attack capability, even though additional electronics meant that the ADEN guns had to be deleted – but they were not popular in their position in front of the windscreen, because the muzzle flash blinded the pilot upon firing. The new engines and fin made the F.3 the highest performance Skyspark yet, but this came at a steep price: higher fuel consumption, resulting in even shorter range. From this basis, a conversion trainer with a side-by-side cockpit, the T.4, was created.
The next interceptor variant was already in development, but there was a need for an interim solution to partially address the F.3's shortcomings, the F.3A. The F.3A introduced two major improvements: a larger, non-jettisonable, 610-imperial-gallon (2,800 L) ventral fuel tank, resulting in a much deeper and longer belly fairing, and a new, kinked, conically cambered wing leading edge. The conically cambered wing improved manoeuvrability, especially at higher altitudes, and it offered space for a slightly larger leading edge fuel tank, raising the total usable internal fuel by 716 imperial gallons (3,260 L). The enlarged ventral tank not only nearly doubled available fuel, it also provided space at its front end for a re-instated pair of 30 mm ADEN cannon with 120 RPG. Alternatively, a retractable pack with unguided 55 mm air-to-air rockets could be installed, or a set of cameras for reconnaissance missions. The F.3A also introduced an improved A.I.23B radar and the new IR-guided Red Top missile, which was much faster and had greater range and manoeuvrability than the Firestreak. Its improved infrared seeker enabled a wider range of engagement angles and offered a forward hemisphere attack capability that would allow the Skyspark to attack even faster bombers (like the new, supersonic Tupolev T-22 Blinder) through a collision-course approach.
Wings and the new belly tank were also immediately incorporated in a second trainer variant, the T.5.
The ultimate variant, the Skyspark F.6, was nearly identical to the F.3A, with the exception that it could carry two additional 260-imperial-gallon (1,200 L) ferry tanks on pylons over the wings. These tanks were jettisonable in an emergency and gave the F.6 a substantially improved deployment capability, even though their supersonic drag was so high that the extra fuel would only marginally raise the aircraft’s range when flying beyond the sound barrier for extended periods.
Finally, there was the Skyspark F.2A; it was an early production F.2 upgraded with the new cambered wing, the squared fin, and the 610 imperial gallons (2,800 L) ventral tank. However, the F.2A retained the old AI.23 radar, the IR-guided Firestreak missile and the earlier Avon 211R engines. Although the F.2A lacked the thrust of the later Skysparks, it had the longest tactical range of all variants, and was used for low-altitude interception over West Germany.
The first Skysparks to enter service with the RAF, three pre-production P.1Bs, arrived at RAF Coltishall in Norfolk on 23 December 1959, joining the Air Fighting Development Squadron (AFDS) of the Central Fighter Establishment, where they were used to clear the Skyspark for entry into service. The production Skyspark F.1 entered service with the AFDS in May 1960, allowing the unit to take part in the air defence exercise "Yeoman" later that month. The Skyspark F.1 entered frontline squadron service with 74 Squadron at Coltishall from 11 July 1960. This made the Skyspark the second Western European-built combat aircraft with true supersonic capability to enter service and the second fully supersonic aircraft to be deployed in Western Europe (the first one in both categories being the Swedish Saab 35 Draken on 8 March 1960 four months earlier).
The aircraft's radar and missiles proved to be effective, and pilots reported that the Skyspark was easy to fly. However, in the first few months of operation the aircraft's serviceability was extremely poor. This was due to the complexity of the aircraft systems and shortages of spares and ground support equipment. Even when the Skyspark was not grounded by technical faults, the RAF initially struggled to get more than 20 flying hours per aircraft per month compared with the 40 flying hours that English Electric believed could be achieved with proper support. In spite of these concerns, within six months of the Skyspark entering service, 74 Squadron was able to achieve 100 flying hours per aircraft.
Deliveries of the slightly improved Skyspark F.1A, with revised avionics and provision for an air-to-air refueling probe, allowed two more squadrons, 56 and 111 Squadron, both based at RAF Wattisham, to convert to the Skyspark in 1960–1961. The Skyspark F.1 was only ordered in limited numbers and served only for a short time; nonetheless, it was viewed as a significant step forward in Britain's air defence capabilities. Following their replacement from frontline duties by the introduction of successively improved Skyspark variants, the remaining F.1 aircraft were employed by the Skyspark Conversion Squadron.
The improved F.2 entered service with 19 Squadron at the end of 1962 and 92 Squadron in early 1963. Conversion of these two squadrons was aided by the of the two-seat T.4 and T.5 trainers (based on the F.3 and F.3A/F.6 fighters), which entered service with the Skyspark Conversion Squadron (later renamed 226 Operational Conversion Unit) in June 1962. While the OCU was the major user of the two-seater, small numbers were also allocated to the front-line fighter squadrons. More F.2s were produced than there were available squadron slots, so later production aircraft were stored for years before being used operationally; some of these Skyspark F.2s were converted to F.2As.
The F.3, with more powerful engines and the new Red Top missile was expected to be the definitive Skyspark, and at one time it was planned to equip ten squadrons, with the remaining two squadrons retaining the F.2. However, the F.3 also had only a short operational life and was withdrawn from service early due to defence cutbacks and the introduction of the even more capable and longer-range F.6, some of which were converted F.3s.
The introduction of the F.3 and F.6 allowed the RAF to progressively reequip squadrons operating aircraft such as the subsonic Gloster Javelin and retire these types during the mid-1960s. During the 1960s, as strategic awareness increased and a multitude of alternative fighter designs were developed by Warsaw Pact and NATO members, the Skyspark's range and firepower shortcomings became increasingly apparent. The transfer of McDonnell Douglas F-4 Phantom IIs from Royal Navy service enabled these much longer-ranged aircraft to be added to the RAF's interceptor force, alongside those withdrawn from Germany as they were replaced by SEPECAT Jaguars in the ground attack role.
The Skyspark's direct replacement was the Tornado F.3, an interceptor variant of the Panavia Tornado. The Tornado featured several advantages over the Skyspark, including far larger weapons load and considerably more advanced avionics. Skysparks were slowly phased out of service between 1974 and 1988, even though they lasted longer than expected because the definitive Tornado F.3 went through serious teething troubles and its service introduction was delayed several times. In their final years, the Skysparks’ airframes required considerable maintenance to keep them airworthy due to the sheer number of accumulated flight hours.
General characteristics:
Crew: 1
Length: 51 ft 2 in (15,62 m) fuselage only
57 ft 3½ in (17,50 m) including pitot
Wingspan: 34 ft 10 in (10.62 m)
Height: 17 ft 6¾ in (5.36 m)
Wing area: 474.5 sq ft (44.08 m²)
Empty weight: 31,068 lb (14,092 kg) with armament and no fuel
Gross weight: 41,076 lb (18,632 kg) with two Red Tops, ammunition, and internal fuel
Max. takeoff weight: 45,750 lb (20,752 kg)
Powerplant:
2× Rolls-Royce Avon 301R afterburning turbojet engines,
12,690 lbf (56.4 kN) thrust each dry, 16,360 lbf (72.8 kN) with afterburner
Performance:
Maximum speed: Mach 2.27 (1,500 mph+ at 40,000 ft)
Range: 738 nmi (849 mi, 1,367 km)
Combat range: 135 nmi (155 mi, 250 km) supersonic intercept radius
Range: 800 nmi (920 mi, 1,500 km) with internal fuel
1,100 nmi (1,300 mi; 2,000 km) with external overwing tanks
Service ceiling: 60,000 ft (18,000 m)
Zoom ceiling: 70,000 ft (21,000 m)
Rate of climb: 20,000 ft/min (100 m/s) sustained to 30,000 ft (9,100 m)
Zoom climb: 50,000 ft/min
Time to altitude: 2.8 min to 36,000 ft (11,000 m)
Wing loading: 76 lb/sq ft (370 kg/m²) with two AIM-9 and 1/2 fuel
Thrust/weight: 0.78 (1.03 empty)
Armament:
2× 30 mm (1.181 in) ADEN cannon with 120 RPG in the lower fuselage
2× forward fuselage hardpoints for a single Firestreak or Red Top AAM each
2× overwing pylon stations for 2.000 lb (907 kg each)
for 260 imp gal (310 US gal; 1,200 l) ferry tanks
The kit and its assembly:
This build was a submission to the “Hunter, Lightning, Canberra” group build at whatifmodellers.com, and one of my personal ultimate challenges – a project that you think about very often, but the you put the thought back into its box when you realize that turning this idea into hardware will be a VERY tedious, complex and work-intensive task. But the thematic group build was the perfect occasion to eventually tackle the idea of a model of a “side-by-side engine BAC Lightning”, a.k.a. “Flatning”, as a rather conservative alternative to the real aircraft’s unique and unusual design with stacked engines in the fuselage, which brought a multitude of other design consequences that led to a really unique aircraft.
And it sound so simple: take a Lightning, just change the tail section. But it’s not that simple, because the whole fuselage shape would be different, resulting in less depth, the wings have to be attached somewhere and somehow, the landing gear might have to be adjusted/shortened, and how the fuselage diameter shape changes along the hull, so that you get a more or less smooth shape, was also totally uncertain!
Initially I considered a MiG Ye-152 as a body donor, but that was rejected due to the sheer price of the only available kit (ModelSvit). A Chinese Shenyang J-8I would also have been ideal – but there’s not 1:72 kit of this aircraft around, just of its successor with side intakes, a 1:72 J-8II from trumpeter.
I eventually decided to keep costs low, and I settled for the shaggy PM Model Su-15 (marketed as Su-21) “Flagon” as main body donor: it’s cheap, the engines have a good size for Avons and the pen nib fairing has a certain retro touch that goes well with the Lightning’s Fifties design.
The rest of this "Flatning" came from a Hasegawa 1:72 BAC Lightning F.6 (Revell re-boxing).
Massive modifications were necessary and lots of PSR. In an initial step the Flagon lost its lower wing halves, which are an integral part of the lower fuselage half. The cockpit section was cut away where the intake ducts begin. The Lightning had its belly tank removed (set aside for a potential later re-installation), and dry-fitting and crude measures suggested that only the cockpit section from the Lightning, its spine and the separate fin would make it onto the new fuselage.
Integrating the parts was tough, though! The problem that caused the biggest headaches: how to create a "smooth" fuselage from the Lightning's rounded front end with a single nose intake that originally develops into a narrow, vertical hull, combined with the boxy and rather wide Flagon fuselage with large Phantom-esque intakes? My solution: taking out deep wedges from all (rather massive) hull parts along the intake ducts, bend the leftover side walls inwards and glue them into place, so that the width becomes equal with the Lightning's cockpit section. VERY crude and massive body work!
However, the Lightning's cockpit section for the following hull with stacked engines is much deeper than the Flagon's side-by-side layout. My initial idea was to place the cockpit section higher, but I would have had to transplant a part of the Lightning's upper fuselage (with the spine on top, too!) onto the "flat" Flagon’s back. But this would have looked VERY weird, and I'd have had to bridge the round ventral shape of the Lightning into the boxy Flagon underside, too. This was no viable option, so that the cockpit section had to be further modified; I cut away the whole ventral cockpit section, at the height of the lower intake lip. Similar to my former Austrian Hasegawa Lightning, I also cut away the vertical bulkhead directly behind the intake opening - even though I did not improve the cockpit with a better tub with side consoles. At the back end, the Flagon's jet exhausts were opened and received afterburner dummies inside as a cosmetic upgrade.
Massive PSR work followed all around the hull. The now-open area under the cockpit was filled with lead beads to keep the front wheel down, and I implanted a landing gear well (IIRC, it's from an Xtrakit Swift). With the fuselage literally taking shape, the wings were glued together and the locator holes for the overwing tanks filled, because they would not be mounted.
To mount the wings to the new hull, crude measurements suggested that wedges had to be cut away from the Lightning's wing roots to match the weird fuselage shape. They were then glued to the shoulders, right behind the cockpit due to the reduced fuselage depth. At this stage, the Lightning’s stabilizer attachment points were transplanted, so that they end up in a similar low position on the rounded Su-15 tail. Again, lots of PSR…
At this stage I contemplated the next essential step: belly tank or not? The “Flatning” would have worked without it, but its profile would look rather un-Lightning-ish and rather “flat”. On the other side, a conformal tank would probably look quite strange on the new wide and flat ventral fuselage...? Only experiments could yield an answer, so I glued together the leftover belly bulge parts from the Hasegawa kit and played around with it. I considered a new, wider belly tank, but I guess that this would have looked too ugly. I eventually settled upon the narrow F.6 tank and also used the section behind it with the arrestor hook. I just reduced its depth by ~2 mm, with a slight slope towards the rear because I felt (righteously) that the higher wing position would lower the model’s stance. More massive PSR followed….
Due to the expected poor ground clearance, the Lightning’s stabilizing ventral fins were mounted directly under the fuselage edges rather than on the belly tank. Missile pylons for Red Tops were mounted to the lower front fuselage, similar to the real arrangement, and cable fairings, scratched from styrene profiles, were added to the lower flanks, stretching the hull optically and giving more structure to the hull.
To my surprise, I did not have to shorten the landing gear’s main legs! The wings ended up a little higher on the fuselage than on the original Lightning, and the front wheel sits a bit further back and deeper inside of its donor well, too, so that the fuselage comes probably 2 mm closer to the ground than an OOB Lightning model. Just like on the real aircraft, ground clearance is marginal, but when the main wheels were finally in place, the model turned out to have a low but proper stance, a little F8U-ish.
Painting and markings:
I was uncertain about the livery for a long time – I just had already settled upon an RAF aircraft. But the model would not receive a late low-viz scheme (the Levin, my mono-engine Lightning build already had one), and no NMF, either. I was torn between an RAF Germany all-green over NMF undersides livery, but eventually went for a pretty standard RAF livery in Dark Sea Grey/Dark Green over NMF undersides, with toned-down post-war roundels.
A factor that spoke in favor of this route was a complete set of markings for an RAF 11 Squadron Lightning F.6 in such a guise on an Xtradecal set, which also featured dayglo orange makings on fin, wings and stabilizers – quite unusual, and a nice contrast detail on the otherwise very conservative livery. All stencils were taken from the OOB Revell sheet for the Lightning. Just the tactical code “F” on the tail was procured elsewhere, it comes from a Matchbox BAC Lightning’s sheet.
After basic painting the model received the usual black ink washing, some post-panel-shading and also a light treatment with graphite to create soot strains around the jet exhausts and the gun ports, and to emphasize the raised panel lines on the Hasegawa parts.
Finally, the model was sealed with matt acrylic varnish and final bits and pieces like the landing gear and the Red Tops (taken OOB) were mounted.
A major effort, and I have seriously depleted my putty stocks for this build! However, the result looks less spectacular than it actually is: changing a Lightning from its literally original stacked engine layout into a more conservative side-by-side arrangement turned out to be possible, even though the outcome is not really pretty. But it works and is feasible!
+++ 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 origins of the Henschel Hs 165 date back to early 1937, when the Reichsluftfahrtministerium (RLM, German Ministry of Aviation) issued a specification for a carrier-based torpedo bomber to operate from Germany's first aircraft carrier, the Graf Zeppelin construction of which had started at the end of 1936. The specification was originally issued to two aircraft producers, Fieseler and Arado, and demanded an all-metal biplane with a maximum speed of at least 300 km/h (186 mph), a range of at least 1,000 km and capable both of torpedo and dive-bombing. By the summer of 1938 the Fieseler design proved to be superior to the Arado design, the Ar 195.
Anyway, by the time the Fi 167 prototype was ready for tests and proved its excellent handling, the biplane layout was already outdated and did not promise much development potential. Therefore, the RLM's request was repeated in late 1938 and a monoplane requested. Since the Graf Zeppelin was not expected to be completed before the end of 1940, the RLM did not put much pressure behind the project.
Among others, Henschel replied with the Hs 165. It was a compact and conservative low wing monoplane of all-metal construction with a crew of two (pilot and navigator/observer/gunner) under a common, heavily framed and high glasshouse canopy. In order to achieve a high performance, the airframe was originally developed around the new 14 cylinder BMW 139 radial engine with 1,550 hp (1,140 kW). The main landing gear was fully retractable, retracting outwards into wells that were part of the outer, foldable wings. Similar to the Ju87 C, the wings could manually be folded backwards, so that the aircraft became very compact for onboard stowage.
The tail wheel, placed behind a V-shaped arrester hook, could not be retracted, even though a mechanism allowed the control of the tail's ground clearance for the carriage of a torpedo under the fuselage and an optimized angle of attack for starts and landings.
Armament consisted of a pair of 20mm MG FF cannons in the wings, a pair of 7.92mm machine guns above the engine, synchronized to fire through the propeller arc, and another single light machine gun for rear defense.
Among the special equipment of the Hs 165 for naval operations was a two-seat rubber dinghy with signal ammunition and emergency ammunition. A quick fuel dump mechanism and two inflatable 750 L (200 US gal) bags in each wing and a further two 500 L (130 US gal) bags in the fuselage enabled the aircraft to remain afloat for up to three days in calm seas.
When the first two prototypes of the Hs 165 (the V-1 and V-2) were about to be finished, it became clear that the BMW 139 would not materialize, but rather be replaced by an even more powerful engine. The new design was given the name BMW 801 after BMW was given a new block of "109-800" engine numbers by the RLM to use after their merger with Bramo. The first BMW 801A's ran in April 1939, only six months after starting work on the design, with production commencing in 1940.
Hs 165 V-1 was re-engined and ready for testing in mid 1940, while the first catapult launch tests on board of the Graf Zeppelin carrier were already carried out with Arado Ar 197s, modified Junkers Ju 87Bs and modified Messerschmitt Bf 109Ds. However, the Graf Zeppelin was still incomplete and not ready for full military service, and the changing strategic situation led to further work on her being suspended. In the wake of this decision, the completion of further carrier-borne aircraft was stopped and the completed examples were taken into Luftwaffe service in several evaluation/test units.
The Hs 165 initially fell victim to this decision, and only five airworthy airframes were completed as Hs 165 A-0 pre-production aircraft. Anyway, these were kept in service as test beds and other development duties, and Henschel kept working on detail improvements since the aircraft was also intended to become a land-based replacement for the Ju 87 dive bombers which had become obsolete by 1941, too. This aircraft was planned as the Hs 165 B.
However, by the spring of 1942 the usefulness of aircraft carriers in modern naval warfare had been amply demonstrated, and on 13 May 1942, the German Naval Supreme Command ordered work resumed on the German carrier projects. Henschel was happy to have the refined Hs 165 A at hand, and the type was immediately put into production.
The resulting Hs 165 A-1 differed in many equipment details from the former pre-production aircraft, and the armament was upgraded, too. The wing-mounted MG FF 20mm cannons were replaced with more effective and lighter MG 151/20 guns, while the pair of MG 17 machine guns above the engine was replaced by a pair of heavy MG 131 machine guns. The observer's single, light MG 15 machine gun was also upgraded to a belt-fed MG 81Z with two barrels, or a single MG 131.
The original BMW 801A engine remained the same, though, and due to the Hs 165 A-1’s higher overall weight the aircraft's performance deteriorated slightly.
Production did not last for long though, because further work on the Graf Zeppelin was soon terminated, and this time for good. In the meantime, the RLM had also decided to reduce the variety of aircraft types and rather develop specialized versions of existing aircraft than dedicated types like the Hs 165. As a consequence Hs 165 production was stopped again in June 1943, with several improved versions on the drawing board. These included the A-2 single seater and the C with an alternative liquid-cooled Jumo 213 powerplant.
The land-based Hs 165 B never materialized because, at the time of the type’s introduction into service, the dive bomber concept had turned out to be much too vulnerable in the European theatre of operations. Effectively, the Hs 165 needed cover from more agile fighters and did not stand a chance against enemy fighters.
However, until the end of production about 100 Hs 165 aircraft had been delivered to land-based front line units, since no German aircraft carrier ever materialized, and these machines were primarily used in Northern Europe in the coastal defense role and for harassment attacks in the North and Baltic Sea until 1945.
In service, they were gradually replaced by Ju 88 torpedo bombers and the Fw 190 A-5a/U14, which was able to carry a single torpedo, too, but offered a much better performance than the heavy and large Hs 165.
General characteristics:
Crew: 2 (pilot and observer/gunner)
Length: 11.08 m (36 ft 4 in)
Wingspan: 13.95 m (45 ft 9 in)
Height: 4.18 m (13 ft 8 in)
Wing area: 26.8 m² (288 ft²)
Empty weight: 9,725 lb (4,411 kg)
Max. takeoff weight: 14,300 lb (6,486 kg)
Powerplant:
1 × BMW 801A air-cooled 14 cylinder two row radial engine, 1,700 hp (1,250 kW)
Performance:
Maximum speed: 302 mph (262 kn, 486 km/h) at 11,000 ft (3,350 m)
Cruise speed: 235 mph (204 kn, 378 km/h)
Range: 1,400 miles (1,220 nmi, 2,253 km)
Service ceiling: 22,500 ft (6,860 m)
Wing loading: 43.1 lb/ft² (210 kg/m²)
Power/mass: 0.12 hp/lb (0.19 kW/kg)
Armament:
2× 20 mm MG 151/20 cannon in the wings
2 × 13 mm MG 131 machine gun above the engine
1 × 7.92 mm MG 81Z, firing backwards
1× 1000 kg (2,200 lb) bomb, or
1× 765 kg (1,685 lb) torpedo, or
1 × 500 kg (1,100 lb) bomb plus 4 × 50 kg (110 lb) bombs, or
4 × 250 kg (551 lb) ventrally
The kit and its assembly:
Another entry for the 2016 "In the Navy" Group Build at whatfimodelers.com, and in this case a complete kitbash for a fictional aircraft. Originally, this idea started as a Hs 126 on floats, which then turned into a low wing aircraft (in the Ju 87 class) and finally evolved into a carrier-capable torpedo bomber. Pretty dramatic evolution, but once the plan was settled, things quickly turned into hardware.
Ingredients include:
- Fuselage, cockpit and stabilizers (though mounted differently) from an Italeri Hs 126
- Wings from a Mastercraft (ex ZTM Plastyk) PZL 23 Karas, with the ventral gondala removed
- Landing gear from a Matchbox He 70, wheels from a Mastercraft Su-22;
- Engine/cowling from an Academy Fw 190, plus various donation parts and a putty plug
- Canopy from a Matchbox Brewster Buffalo
- German torpedo from the spares box (IIRC from an Italeri He 111)
Even though this is a kitbash, work was rather easy and straightforward, because most of the parts come from OOB donation kits. First, the Hs 126 fuselage was finished without an interior and the Fw 190 nose section transplanted. Inside, a styrene tube was added in order to hold the propeller and let it spin freely. In parallel, the landing gear wells were cut into the wings and the flaps separated/opened. Then the canopy was integrated into the fuselage, using styrene strips and putty.
For the wings, a wide opening had to be cut into the Hs 126’s lower fuselage, and the parts took some putty work to blend together.
Once the wings were in place, the landing gear was mounted as well as the scratched torpedo hardpoint. The cockpit interior followed suit with new seats and two figures, then the Buffalo canopy was modified for the rear machine gun mount and glued into place.
Painting and markings:
I wanted a rather "dry", typical German livery, and settled for a simple splinter scheme with a low waterline in the naval colors RLM 72 (a kind of very dark olive drab) and 73 (a bluish, very dark green) with light blue (RLM 65) undersides.
In this case I used enamels from the Modelmaster Authentic range, treated with a light black ink wash and with serious panel shading (with Humbrol 66 and a mix of Humbrol 30 + 77, respectively), because some color pictures I got hands on from early German naval aircraft (e. g. He 115 or Ar 196) suggest that the two murky, green tones weathered and bleached easily, and the enhanced contrast between the very similar colors was IMHO helpful, anyway.
The interior and the landing gearw as painted in contemporary RLM 02, the torpedo is simple black with a gun metal tip and a brass propeller.
The markings had to be puzzled together; I originally wanted the kit to be part of one of the Küstenfliegergruppen, in particular KüFliGr 106. But in mid 1943, these were partly integrated into the Kampffliegergruppen, and offensive parts of KüFliGr 106 were added to KG 6. It took some time to figure out where KG 6 was operating in the time frame I wanted to place the Hs 165, and eventually found 8./KG 6 from the third group that was based in Belgium at that time and flew Ju 88 torpedo bombers - so I added the Hs 165 to that squadron.
As a side effect, the aircraft would not carry any of the fuselage bands or other bright ID markings - the only color highlights are the red wing tip and the individual code "K" letter, and I used a grey decal for the 8th squadron's code letter "S" for better contrast with the dark green livery. Another "highlight" is a KG 6 emblem behind the engine, which I found on a Peddinghaus Decals sheet in the stash. Anyway, this minimal and very conservative livery does not look bad at all, though?
A complex kitbashing,done in about a week, and despite some trouble and major body work the result looks IMHO very good - especially the flight scenes, with the retracted (retouched...) landing gear show the sleek lines of the Hs 126, the fictional Hs 165 looks pretty fast and purposeful. And with a different engine, this could also carry some Hinomaru - the thing reminds me a lot of Japanese torpedo bombers (e. g. the B5N?) and carrier-borne reconnaissance aircraft?
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
In the period immediately after the Second World War the world found itself with hundreds of thousands of surplus aircraft and just as many surplus aviators. Most aircraft would meet the salvage blade and the smelter’s fiery furnace. Most pilots would return to civilian life, the bulk of them never to fly again.
With the plethora of military aircraft languishing in desert lots awaiting a certain fate, some of those disenfranchised aviators and aircraft designers would look to new growing markets for salvation. One of these emerging markets was the new-found requirement for fast and capable business transport aircraft for executives looking to link business interests across the vast distances of the nation. With few purpose-built business aircraft available for executives, medium bombers became the drug of choice for high flying big shots—fast, powerful and, with the right interior appointments, a visual statement of their success and power.
In early variants like the Executive, On Mark simply removed military equipment and replaced them with fairings and civil avionics, sealed the bomb bay doors, soundproofed the cabin, and added additional cabin windows. Later models had special wing spars designed to give more interior room, pressurization and equipment from bigger surplus aircraft such as DC-6 brakes and flat glass cockpit windows. It was an elegant mashing together of equipment, but it was not a true business aircraft.
In the Sixties, Jet Craft Ltd. of Las Vegas, Nevada, went for a different interpretation of the same topic: The company had purchased a number of former Royal Australian Air Force Vampire trainers and RCAF single-seaters, which were to be converted to a new design for a business aircraft called 'Mystery Jet', offering 4-8-seats.
Jet Craft worked with stellar British conversion experts Aviation Traders to do the structural design work. Aviation Traders Limited (ATL) was a war-surplus aircraft and spares trader formed in 1947. In 1949, it began maintaining aircraft used by some of Britain’s contemporary independent airlines on the Berlin Airlift. In the early 1950s, it branched out into aircraft conversions and manufacturing.
Aviation Traders worked on the drawings and the structural mock-ups. A full-scale mock-up of the Mystery Jet languished at Southend airport for a decade, trying to lure owners and operators into buying it. And this actually happened: about twenty former Vampire airframes were converted into Mystery Jet business aircraft, tailored to the customers' needs and desires.
The Mystery Jet was just what it looked like: a former De Havilland Vampire with a new, roomy nose section grafted onto it. The cabin was pressurized, and was available in two different lengths (130 and 160 inches long, with two or three rows of seats and reflected in the aircraft's title) and several window and door options - the most exotic option being the "Landaulet" cabin which featured a panoramic roof/window installation over the rear pair of seats (or, alternatively, a two-seat bench).
The original Goblin engine was retained, CG was retained due to the fact that the new cabin was, despite being considerably longer than the Vampire's nose, the biggest version being more than 8 feet longer. The new front section was much lighter, though, e. g. through the loss of the heavy cannons and their armament, as well as some more military avionics. The loss of fuel capacity through the enlarged cabin was compensated through fixed wing tip tanks, so that range was on par with the former military jet, just top speed and ceiling were slightly inferior.
Anyway, prices were steep and from the United States more modern and economical offerings ruled the market. Maintaining a former military jet was also a costly business, so, consequently, after a slight buzz (more of a hum, actually) in the early Seventies, the Mystery Jet and Jet Craft of Las Vegas, also fuelled by some dubious business practices by the company's owner, disappeared. Even further developments of the original concept, e .g. with a wide body for up to 14 passengers and two engines, would not save the Mystery Jet from failure.
General characteristics:
Crew: 1 pilot plus 5-7 passengers
Length (Mystery Jet 160): 38 ft 5 in (11.73 m)
Wingspan incl. tip tanks: 39 ft 7 1/2 in (12.09 m)
Height: 8 ft 10 in (2.69 m)
Wing area: 262 ft² (24.34 m²)
Empty weight: 7,283 lb (3,304 kg)
Max. take-off weight: 12,390 lb (5,620 kg)
Powerplant:
1× de Havilland Goblin 3 centrifugal turbojet, rated at 3,350 lbf (14.90 kN)
Performance:
Maximum speed: 516 mph (832 km/h)
Cruising speed: 400 mph (644 km/h)
Range: 1,220 mi (1,960 km)
Service ceiling: 37,700 ft (11,500 m)
Armament:
None
The kit and its assembly:
The first finished work in 2017 is a different kind of whif, one of the few civilian models in my collection. This conversion looks sick, but ,as weird as it may seem, the Business-Jet-From-Vintage-Vampires idea was real. For more information, and the source from where some of the backgound story was gathered, please check:
www.vintagewings.ca/VintageNews/Stories/tabid/116/article...
Anyway, my build is just a personal interpretation of the original concept, not a true model of the Mystery Jet. In fact, this was limited through the donor parts for this kitbash.
The rear end was the smaller problem: Airfix offers a very good Vampire T.11 trainer with excellent detail and fit - the passenger cabin was the bigger challenge. Finding "something" that would fit in shape and especialsl size was not easy - my first choice was a nose section from a vintage 1:100 Antonow An-24 from VEB Plasticart (still much too wide, though), and the best solution came as an accidental find in a local model kit shop where I found a heavily discounted MPM Focke Wulf Fw 189 B-0 trainer.
The reason: the kit was complete, but the bag holding the sprues must have been heated immensely during the packaging process: the main sprues were horrible warped - except for some single parts including the canopies and the sprue with the cabin! Height wind width were perfect, only the boxy shape caused some headaches. But I guess I would not find anything better...
That said, the transplantation mess started. I never built any of the two donor kits before, so I carefully tried to find the best place where to cut the Vampire's nose - I ended up with a staggered solution right in front of the wing root air intakes.
The Fw 189's cabin was bit more tricky, because I had to get rid of the original wing roots and wanted to use as much space as possible, up to the rear bulkhead and together with the rear cabin window. The idea was to blend the Fw 189's roof line into the Vampire's engine section, while keeping the original air intake ducts, so that the overall arrangement would look plausible.
The result became a pretty long nose section - and at that time the tail booms were not fited yet, so I was not certain concerning overall proportions. The cabin's underside had to be improvised, and blending the boxy front end with a flat underside into the tubby, round Vampire fuselage caused some headaches. I also had to re-create the lower flank section with styrene sheet, because I had originally hoped that I could "push" the new cabin between the wing roots - but that space was occupied by the Goblin's inlet ducts.
Inside of the cabin, the original floor, bulkheads and dashboard were used, plus five bucket seats that come with the MPM kit. In order to hide the body work from the inside, side panels from 0.5mm styrene sheet were added in the cabin - with the benefit of additional stability, but also costing some space... Since the machine was built with closed cabin, a pilot was added - actually a bash of a WWII Matchbox pilot and a German officer from an ESCI tank kit. Looks pretty good and "professional". ;-)
Once the cabin was in place, lots of PSR followed and the tail booms could be fitted. To my relief, the longer nose did not look too unbalanced (and actually, design sketches for the original Mystery Jet suggest just this layout!) - but I decided to add wing tip tanks which would beef up wingspan and shift the visual mass slightly forward. They come from an 1:100 Tamiya Il-28, or better the "R" recce variant.
The only other big change concerned the nose wheel. While the OOB wheel and strut were used, the well is now located in front of the wheel and it would retract forwards, giving the nose a more balanced look - and the cabin arrangement made this change more plausible, too.
Another addition were three small porthole windows in the solid parts of the cabin flanks - one of them ending up in the middle of the cabin door on starboard, where a solid part of the canopy roof lent itself for a good place just behind the pilots' seats.
Painting and markings:
I cannot help it, but the thing looks like a design from a vintage Tintin or Yoko Tsuno comic! This was not planned or expected - and actually the paint scheme evolved step by step. I had no plan or clue what to apply - the real Mystery Jet mock-up in silver with blue trim looked sharp, but somehow I did not want blue. So I started with the interior (out of a necessity, as the fuselage had to be closed before any further work progress at some point) and settled for plushy, British colors: Cream (walls and roof) and Claret-Red (carpet and seats).
I tried to find something for the outside that would complement this choice of colors, and eventually settled on Ivory and White (upper and lower fuselage halves, respectively) with some deep red trim, plus pale grey wing surfaces. I even considered some thin golden trim lines, but I think this would have been too much?
The trim was created with decals tripes from generic sheet material, the black anti-glare panel was painted, though. As a color contrast I painted some of the upper canopy panels in translucent, light blue, and this looks very good.
The wings received a lightb treatment with thinned black ink, in order to emphasize the engravings. No post-shading was done, though, for a rather clean look.
Most markings were puzzled together; the registration G-AZRE actually belonged to a Vickers Vanguard (from the 1:144 Airfix kit), the large letters above and under the wings were created with single 45° letters (USAF style). Most stencils come from a Vampire trainer aftermarket sheet from Xtradecal, from the OOB sheet only the "No step" warnings on the wings were used.
Finally, the kit was sealed with a semi-matt coat of varnish, except for the anti-glare panel, which recived a matt coat. The three small windows received artificial panes made from Clearfix, after their rims had been painted black.
A messy project, and you better do not take a close look. But the overall elegance of this creation surprises me - the real Mystery Jet already looked sleek, and this model, despite a more blunt nose, confirms this impression. The colors work together well, too - and the thing has a dedicated retro feel about it. Tintin might be on board, as well as Elton John, both sharing a cigar on the rear seats... ;)
Phicen kitbash using the Little Red Riding Hood headsculpt . For the life of me I still can't find a proper Phicen body that matches this particular headsculpt ,this is the pale body and it still doesn't match , so frustrating >:(
+++ 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 Supermarine Jetfire was a stopgap solution in order to introduce a jet-powered interceptor agains German V-1 missiles that threatened the London region from June 1944 on. At that time, the only aircraft with the low-altitude speed to be effective against it was the Hawker Tempest, but fewer than 30 Tempests were available. They were assigned to No. 150 Wing RAF, and early attempts to intercept and destroy V-1s often failed.
One alternative was the jet-powered Gloster Meteor, which still was development - and in order to get the new engine into service (also as a response to Gloster's engagement for E.1/44 with the single-engine "Ace" fighter) Supermarine responded with the idea to replace the nose-mounted piston engine with a single Whittle W.2 engine: The "Jetfire" was born.
The conversion was rather simple: the Jetfire was actually a Griffon-powered Spitfire XIV with as few changes to the original airframe in order to accept the W.2. The aircraft's forward fuselage was widened to accommodate the bulbous engine with a simple nose intake. The deeper forward part of the fuselage with its round diameter gave the aircraft a pronounced "pod-and-boom" configuration.
Internally, the front wing spar had to be bent into an inverted U-shape to clear the engine and its jet pipe.
The W.2 was mounted slightly angled downwards, and the jet pipe was bifurcated so that it ran along the fuselage flanks above the wings, with an exhaust just behind the wings’ trailing edges. To protect the fuselage, steel heatshield were added to the flanks. Furthermore, the former radiator fairings for the Griffon and the respective plumbing were removed and faired over, saving weight and internal space – and weight was reduced as much as possible to achieve a decent performance with the rather experimental centrifugal jet engine. The conventional Spitfire tailsitter landing gear remained unmodified, just additional covers for the main wheels were added for improved aerodynamics at high speed.
The first prototype was already finished in October 1944, and taxiing trials started immediately. The heatshields proved to be too short and the heat from the engine exhaust melted the duralumin skin of the rear fuselage. Additionally, the tailwheel received a longer strut for a cleaner airflow under the stabilizer on the ground – the original, shorter strut created an air cushion under the stabilizer that lifted the whole tail upwards when the throttle was opened, resulting in poor handling at low taxiing speeds.
Modifications to rectify the problems took until late December, and by this time a second prototype had been completed. After a few taxiing tests, it was transferred to the Royal Aircraft Establishment (RAE) for full-scale wind tunnel testing that lasted until February 1945.
On the 26th of that month, the RAF issued requirements that the aircraft should have a maximum speed of 770 km/h (480 mph) at sea level and a speed of 850 km/h (530 mph) at an altitude of 5,000 meters (16,400 ft). It should be able to climb to that altitude in 4 1/2 minutes or less and it should have a range of 500 kilometers (310 mi) at 90% of maximum speed.
The Jetfire failed to meet these targets, but it was still fast enough to intercept the V-1 and was quickly available. The average speed of V-1s was 550 km/h (340 mph) and their average altitude was 1,000 m (3,300 ft) to 1,200 m (3,900 ft). Fighter aircraft required excellent low altitude performance to intercept them and enough firepower to ensure that they were destroyed in the air rather than crashing to earth and detonating. Most aircraft were too slow to catch a V-1 unless they had a height advantage, allowing them to gain speed by diving on their target.
Originally a total of 200 Jetfire Mk.Is were ordered, and on the drawing board an improved variant with a bubble canopy, a slightly larger tail fin, stabilizers with a 10° dihedral in order to get them better out of the jet efflux’s path and an armament of four 20 mm cannon (the Mk.II) was already taking shape. But this initial and any follow-on orders were quickly cancelled or changed to the more advanced and promising twin-engined Gloster Meteor that finally became operational.
Consequently, the total production run of the Jetfire Mk.I just reached 26 aircraft: 18 were delivered to RAF 616 Squadron, the rest were used by the Tactical Flight at Farnborough that had been established in 1944 in order to prepare active squadrons for the radically new jet fighters. In late March 1945, the Jetfires became operational, upon which both tactical applications and limitations were extensively explored.
Despite many shortcomings (sluggish acceleration, poor climb and agility except for a very good roll rate), the still rather experimental and primitive Jetfire was able to fulfill its intended V-1 interception role, and two V-1 interceptions were achieved during the following weeks. In the front line units they were quickly replaced by more effective types like the Gloster Meteor, the Hawker Tempest or the Republic P-47 Thunderbolt. Anyway, the Jetfire was still helpful to path the RAF’s way for operational jet fighters and helped discover new high speed problems, including compressibility buffeting at higher speeds, causing increased drag, and it showed clearly the limits of traditional fighter aircraft designs.
General characteristics
Crew: 1
Length: 31 ft 8 in (9.66 m)
Wingspan: 36 ft 10 in (11.23 m)
Height: 10 ft 0 in (3.05 m)
Wing area: 242.1 sq ft (22.49 m2)
Airfoil: NACA 2213 (root), NACA 2209.4 (tip)
Empty weight: 8,434 lb (3,826 kg)
Gross weight: 12,211 lb (5,539 kg)
Powerplant:
1× Rolls-Royce B.37 Derwent turbojet, 2,000 lbf (8.9 kN) static thrust
Performance:
Maximum speed: 748 km/h (468 mph)
Range: 395 km (247 miles) with internal fuel only
Service ceiling: 12,750 m (41,820 ft)
Rate of climb: 12 m/s (2362 ft/min)
Thrust/weight: 0.45
Time to altitude: 5.0 min to 30,000 ft (9,145 m)
Armament:
2× 20 mm British Hispano MkV cannons (120 RPG) and
2× 12,7 mm (0.5") machine guns (250 RPG) in the outer wings
Provision for up to six "60lb" 3" rockets under the outer wings,
or two 500 lb (227 kg) bombs, or a pair of drop tanks
The kit and its assembly:
The first entry for the "Old Kit" group build at whatifmodelers.com in late 2016 - anything goes, the kit's mould just has to date back to 1985 and further. For this one I settled on the FROG Spitfire Mk. XIV, which, AFAIK, dates back to 1969, and an engine donor from a KP Yak-23, which is supposed to have hit the markets behind the Iron Curtain in 1981.
Originally, the background story pretty much sums up the idea behind this kitbash: How could the - already fast - Spitfire be further augmented with one of the new jet engines around 1944, when V1 attacks started against the British main land and the Meteor was still in development? A simple engine swap with as much airframe of the piston-engine ancestor would be the answer. Similar ideas had been undertaken in Germany, with re-engined versions of the Bf 109 and the Fw 190, and after WWII, when German jet technology had become available to the Soviet Union, the Yak-15/17/23 family followed a similar pattern.
The Yak-23 came as a natural donation aircraft for the Derwent nose. After careful measures and strategic cuts the Spitfire lost its Griffon engine (already earmarked for another kitbash...) and the Yak-23 its nose and exhaust pipe: the original plan had been to use a central, ventral exhaust pipe under the cockpit, even though this would create issues with the tail wheel (just as on the Yak-15 - it received in service an all-metal tail wheel! Imagine the sparks on the runway...).
Anyway, while dry-fitting the parts it turned out that pretty little of the Yak-23 exhaust section could be mounted with clean lines: I'd either have had to create a semi-recessed exhaust with lots of body work (and pretty implausible), or switch to a totally different solution.
That came with a bifurcated exhaust pipe, running along the wing roots and ending at the wings' trailing edge. While this sounds weird, too, the Hawker SeaHawk actually had such an arrangement - on a service aircraft!
As a side effect, the fairings for the jet pipes now offered a good basis for the necessary intersection between the round and bulky Derwent nose fairing and the narrow, oval Spitfire fuselage.
The new jet pipes were created with styrene tubes and lots of putty, and the result does not look bad at all. Actually, with the deleted radiators and the Griffon carburetor intake gone, the aircraft has a very sleek profile, even though the top view reveals the innate "pod and boom" layout of the nose-mounted centrifugal jet engine.
The latter received a new intake interior with some fine mesh and a central bullet fairing (the Yak-23's vertical splitter would not make any sense, since there'd be no nose wheel anymore). The landing gear was taken more or less OOB, I just added some struts and extra wheel covers. The tail wheel comes from an Airfix Hawker Hurricane and changed into a fully retractable arrangement. The cockpit was taken OOB, too, just a tank dummy was added behind the pilot's seat and the canopy sliced into three pieces for an optional open display.
The "E wing" armament was taken over from the Spitfire Mk. XIV, I just added the elegant drop/slipper tanks from the Yak-23 kit. This breaks up the clean lines of the "Jetfire", but I think that the thirsty Derwent might have needed some extra fuel for a decent approach range and some loiter time while intercepting incoming V-1s?
The V-1 from the FROG kit was built for the flight scenes, too. It’s a very simple model consisting only of four parts with rather mediocre fir, esp. the pulse engine halves, but a fairly good representation. Maybe the propeller for the fuse timer is missing, but that can be scratched easily.
Only personal additions are a grate in the air intake, and a hidden adapter for a display, for the pics. Maybe this flying bomb ends up later as ordnance under a German bomber build?
Painting and markings:
Very conservative, late war RAF Dark Green/Ocean Grey/Medium Sea Grey with typical ID markings and codes. 616 Squadron was chosen because it was one of the units that introduced the Meteor for V-1 interception.
Paints are basically enamels from the ModelMaster Authentic range. The Sky fuselage band was improvised with a decal from a vintage Matchbox Brewster Buffalo (matching the the Sky code letters from Xtradecal pretty well), while the codes and serial numbers themselves were created from single letter digits (the "/G" addition to the serial number signaled that the aircraft was to be guarded at any time while on the ground).
The cockpit interior was painted in very dark grey while the landing gear became aluminum. As a highlight, the air intake edge was painted with silver, more for a dramatic effect than for realism.
The yellow wing leading edge markings were created with generic decal sheet material. The only special markings on the aircraft are the white stripes on tail and wings, which I also used to underlay the serial code.
Only little panel-shading and weathering was done, some panel lines were manually created with a fine pencil since a lot of surface details on the fuselage were lost during the extensive PSR process around the wing/jet pipes area.
Finally, the kit was sealed with matt acrylic varnish.
The V-1 has painted with no special paradigm in mind, with RLM81 upper surfaces and RLM 76 undersides, with a very wavy waterline and some grey patches on the wings. The engine was painted with aluminum first and then a thin coat of red primer added.
The resulting aircraft of this kitbash looks better than expected, even though the change of the exhaust arrangement came unexpected – even though I think the Jetfire became more appealing through the side pipes, despite the overall tadpole proportions.
As a side note, the story is not over yet, because there’s an engine-less Yak-23 left over, and I wonder what it might look like with a piston engine grafted to the empty nose?
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
Although the performance increases of jet-powered aircraft introduced towards the end of World War II over their piston-powered ancestors were breathtaking, there were those at the time who believed that much more was possible. As far back as 1943, the British Ministry of Aircraft Production had issued a specification designated "E.24/43" for a supersonic experimental jet aircraft that would be able to achieve 1,600 KPH (1,000 MPH).
Beginning in 1946, a design team at English Electric (EE) under W.E.W. "Teddy" Petter began design studies for a supersonic fighter, leading to award of a Ministry of Supply (MoS) contract in 1947 under specification "ER.103" for a design study on an experimental aircraft that could achieve Mach 1.2.
The MoS liked the EE concepts, and in early 1949 awarded the company a contract under specification "F.23/49" for two flying prototypes and one ground-test prototype of the "P.1".
The P.1 was defined as a supersonic research aircraft, though the design had provisions for armament and a radar gunsight. It incorporate advanced and unusual design features, such as twin turbojet engines mounted one above the other to reduce aircraft frontal area; and strongly swept wings, with the wingtip edges at a right angle to the fuselage, giving a wing configuration like that of a delta wing with the rear inner corners cut out. The aircraft featured an elliptical intake in the nose.
The P.1's performance was so outstanding that the decision was quickly made to proceed on an operational version that would be capable of Mach 2. In fact, the second P.1 prototype featured items such as a bulged belly tank and fit of twin Aden Mark 4 30 millimeter revolver-type cannon, bringing it closer to operational specification.
Orders were placed for three "P.1B" prototypes for a production interceptor and the original P.1 was retroactively designated "P.1A". The P.1B featured twin Rolls-Royce Avon afterburning engines and a larger tailfin. An airborne intercept (AI) radar was carried in the air intake shock cone, which was changed from elliptical to circular. The cockpit was raised for a better field of view and the P.1B was armed with two Aden cannon in the upper nose, plus a pack under the cockpit that could either support two De Havilland Blue Jay (later Firestreak) heat-seeking AAMs or 44 Microcell 5 centimeter (2 inch) unguided rockets.
The initial P.1B prototype performed its first flight on 4 April 1957 and the type entered RAF service as EE Lightning F.1. RAF Number 74 Squadron at Coltishall was the first full service unit, with the pilots acquiring familiarization with the type during late 1960 and the squadron declared operational in 1961.
However, while the Lightning was developed further into more and more advanced versions. Its concept was also the basis for another research aircraft that would also be developed into a high performance interceptor: the P.6/1, which later became the “Levin” fighter.
P.6 encompassed a total of four different layouts for a Mach 2+ research aircraft, tendering to ER.134T from 1952. P.6/1 was the most conservative design and it relied heavily on existing (and already proven) P.1 Lightning components, primarily the aerodynamic surfaces. The most obvious difference was a new fuselage of circular diameter, housing a single Rolls Royce RB.106 engine.
The RB.106 was a two-shaft design with two axial flow compressors each driven by its own single stage turbine and reheat. It was of similar size to the Rolls-Royce Avon, but it produced about twice the thrust at 21,750 lbf (96.7 kN) in the initial version. The two-shaft layout was relatively advanced for the era; the single-shaft de Havilland Gyron matched it in power terms, while the two-spool Bristol Olympus was much less powerful at the then-current state of development. Apart from being expected to power other British aircraft such as those competing for Operational Requirement F.155, it was also selected to be the powerplant for the Avro Canada CF-105 Arrow and led to the Orenda Iroquois engine, which even reach 30.000 lbf (130 kN).
The P.6/1 was eventually chosen by the MoS for further development because it was regarded as the least risky and costly alternative. Beyond its test bed role for the RB.106 the P.6/1 was also seen as a potential basis for a supersonic strategic air-to-ground missile (similar to the massive Soviet AS-3 ‘Kangaroo’ cruise missile) and the starting point for an operational interceptor that would be less complex than the Lightning, but with a comparable if not improved performance but a better range.
In 1955 English Electric received a go ahead for two P.6/1 research aircraft prototypes. Despite a superficial similarity to the Lightning, the P.6/1’s internal structure was very different. The air duct, for instance, was bifurcated and led around on both sides of the cockpit tub and the front wheel well instead of below it. Further down, the duct ran below the wing main spar and directly fed the RB.106.
The rear fuselage was area-ruled, the main landing gear retracted, just like the Lightning’s, outwards into the wings, while the front wheel retracted backwards into a well that was placed further aft than on the Lightning. The upper fuselage behind the main wings spar carried fuel tanks, more fuel was carried in wing tanks.
Both research machines were ready in 1958 and immediately started with aerodynamic and material tests for the MoS, reaching top speeds of Mach 2.5 and altitudes of 60.000 ft. and more.
In parallel, work on the fighter version, now called “Levin”, had started. The airframe was basically the same as the P.6/1’s. Biggest visible changes were a wider air intake with a bigger central shock cone (primarily for a radar dish), a shorter afterburner section and an enlarged fin with area increased by 15% that had become necessary in order to compensate instability through the new nose layout and the potential carriage of external ordnance, esp. under the fuselage. This bigger fin was taken over to the Lightning F.3 that also initially suffered from longitudal instability due to the new Red Top missiles.
The Levin carried armament and avionics similar to the Lightning, including the Ferranti-developed AI.23 monopulse radar. The aircraft was to be fully integrated into a new automatic intercept system developed by Ferranti, Elliot, and BAC. It would have turned the fighters into something like a "manned missile" and greatly simplified intercepts.
Anyway, the Levin’s weapon arrangement was slightly different from the Lightning: the Levin’s armament comprised theoretically a mix of up to four 30mm Aden cannons and/or up to four of the new Red Top AAMs, or alternatively the older Firestreak. The guns were mounted in the upper nose flanks (similar to the early Lightning arrangement, but set further back), right under the cockpit hatch, while a pair of AAMs was carried on wing tip launch rails. Two more AAMs could be carried on pylons under the lower front fuselage, similar to the Lightning’s standard configuration, even though there was no interchangeable module. Since this four-missile arrangement would not allow any cannon to be carried anymore and caused excessive drag, the typical payload was limited to two Aden cannons and the single pair of wing-tip missiles.
Despite its proven Lightning ancestry, the development of the Levin went through various troubles. While the RB.106 worked fine in the research P.6/1, it took until 1962 that a fully reliable variant for the interceptor could be cleared for service. Meanwhile the Lightning had already evolved into the F.3 variant and political discussions circled around the end of manned military aircraft. To make matters even worse, the RAF refused to buy the completely automatic intercept system, despite the fact that it had been fully engineered at a cost of 1.4 million pounds and trialed in one of the P.1Bs.
Eventually, the Levin F.1 finally entered service in 1964, together with the Lightning F.3. While the Lightning was rather seen as a point defense interceptor, due to the type’s limited range: If a Lightning F.3 missed its target on its first pass, it almost never had enough fuel to make a second attempt without topping off from a tanker, which would give an intruder plenty of time to get to its target and then depart… The Lightning’s flight endurance was less than 2 hours (in the F.2A, other variants even less), and it was hoped that the Levin had more potential through a longer range. Anyway, in service, the Levin’s range in clean configuration was only about 8% better than the Lightning’s. The Levin F.1’s flight endurance was about 2 ½ hours – an improvement, but not as substantial as expected.
In order to improve the range on both fighters, English Electric developed a new, stiffened wing for the carriage of a pair of jettisonable overwing ferry tanks with a capacity of 1,182 liters (312 US gallons / 260 Imperial gallons, so-called “Overburgers”). The new wing also featured a kinked leading edge, providing better low-speed handling. From mid 1965 onwards, all Levins were directly produced in this F.2 standard, and during regular overhauls the simpler F.1 machines were successively updated. The Lightning introduced the kinked wing with the F.3A variant and it was later introduced with the F.2A and F.6A variants.
Levin production comprised 21 original F.1 airframes, plus 34 F.2 fighters, and production was stopped in 1967. A trainer version was not produced, the Lightning trainers were deemed sufficient for conversion since the Levin and the Lightning shared similar handling characteristics.
The Levin served only with RAF 29 and 65 Squadron, the latter re-instated in 1970 as a dedicated fighter squadron. When in November 1984 the Tornado squadrons began to form, the Levin was gradually phased out and replaced until April 1987 by the Tornado F.3.
General characteristics:
Crew: 1
Length w/o pitot: 51 ft 5 in (15,70 m), 55 ft 8 in (16.99 m) overall
Wingspan incl. wingtip launch rails: 34 ft 9 in (10.54 m)
Height: 19 ft 7 in (5.97 m)
Wing area: 474.5 ft² (44.08 m²)
Empty weight: 8937 kg (lb)
Loaded weight: 13,570 kg (29,915)
Max. takeoff weight: 15,210 kg (33,530 lb)
Powerplant:
1× Rolls-Royce RB.106-10S afterburning turbojet,
rated at 20,000 lbf (89 kN) dry and 26,000 lbf (116 kN) with afterburning
Performance:
Maximum speed:
- 1,150 km/h (620 kn, 715 mph, Mach 0.94) at sea level
- 2,230 km/h (1.202 kn, 1,386 mph, Mach 2.1;), clean with 2× Red Top AAMs at high altitude
- Mach 2.4 absolute top speed in clean configuration at 50.000 ft.
Range: 1,650 km (890 nmi, 1,025 mi) on internal fuel
Combat radius: 500 km (312 mi); clean, with a pair of wing tip Red Top AAMs
Ferry range: 1,270 mi (1.100 NM/ 2.040 km) with overwing tanks
Service ceiling: 16,760 m (55,000 ft)
Rate of climb: 136.7 m/s (27,000 ft/min)
Wing loading: 76 lb/ft² (370 kg/m²)
Thrust/weight: 0.78
Takeoff roll: 950 m (3,120 ft)
Landing roll: 700 m (2,300 ft)
Armament:
2× 30 mm (1.18 in) ADEN cannons with 120 RPG in the upper front fuselage
2× wing tip hardpoints for mounting air-to-air missiles (2 Red Top of Firestreak AAMs)
2× overwing pylon stations for 260 gal ferry tanks
Optional, but rarely used: 2× hardpoints under the front fuselage for mounting air-to-air missiles
(2 Red Top of Firestreak AAMs)
The kit and its assembly:
Another contribution to the Cold War GB at whatifmodelers.com, and the realization of a project I had on the agenda for long. The EE P.6/1 was a real project for a Mach 2+ research aircraft, as described above, but it never went off the drawing board. Its engine, the RB.106, also never saw the light of day, even though its later career as the Canadian Orenda Iroquois for the stillborn CF-105.
Building this aircraft as a model appears simple, because it’s a classic Lightning (actually a F.1 with the un-kinked wing and the small fin), just with a single engine and a rather tubular fuselage. But creating this is not easy at all…
I did not want to replicate the original P.6/1, but rather a service aircraft based on the research aircraft. Therefore I used parts from a Lightning F.6 (a vintage NOVO/Frog kit). For the fuselage I settled for a Su-17, from a MasterCraft kit. The kit’s selling point was its small price tag and the fuselage construction: the VG mechanism is hidden under a separate spine piece, and I wanted to transplant the Lightning’s spine and cockpit frame, so I thought that this would make things easier.
Nope.
Putting the parts from the VERY different kits/aircraft together was a major surgery feat, with several multiple PSR sessions on the fuselage, the air intake section (opened and fitted with both an internal splitter and a bulkhead to the cockpit section), the wings, the stabilizers, the fin… This model deserves the title “kitbash” like no other, because no major sections had ever been intended to be glued together, and in the intended position!
The landing gear was more or less taken OOB, but the main struts had to be elongated by 2mm – somehow the model turned out to be a low-riding tail sitter! The cockpit interior was improvised, too, consisting of a Su-17 cockpit tub, a scratched dashboard and a Martin Baker ejection seat from an Italeri Bae Hawk trainer.
Since most of the fuselage surface consists of various materials (styrene and two kinds of putty), I did not dare to engrave panel lines – after all the PSR work almost any surface detail was gone. I rather went for a graphic solution (see below). Some antennae and air scoops were added, though.
The overwing tanks come OOB from the NOVO kit, as well as the Red Top missiles, which ended up on improvised wing tip launch rails, based on design sketches for Lightning derivatives with this layout.
Colors and markings:
There are several “classic” RAF options, but I settled for a low-viz Eighties livery taken from BAC Lightnings. There’s a surprising variety of styles, and my version is a mix of several real world aircraft.
I settled for Dark Sea Grey upper surfaces (Modelmaster Authentic) with a high waterline, a fuselage completely in Medium Sea Grey (Humbrol 165 – had to be applied twice because the first tin I used was obviously old and the paint ended up in a tone not unlike PRU Blue!) and Light aircraft Grey underwing surfaces (Humbrol 166). The leading edges under the wings are Dark Sea Grey, too.
The cockpit interior was painted in dark grey (Humbrol 32 with some dry-brushing), while the landing gear is Aluminum (Humbrol 56).
Once the basic painting was done I had to deal with the missing panel lines on the fuselage and those raised lines that were sanded away during the building process. I decided to simulate these with a soft pencil, after the whole kit was buffed with a soft cotton cloth and some grinded graphite. This way, the remaining raised panel lines were emphasized, and from these the rest was drawn up. A ruler and masking tape were used as guidance for straight lines, and this worked better than expected, with good results.
As a next step, the newly created panels were highlighted with dry-brushed lighter tones of the basic paints (FS 36492 and WWII Italian Blue Grey from Modelmaster, and Humbrol 126), more for a dramatic than a weathered effect. The gun ports and the exhaust section were painted with Modelmaster Metallizer (Titanium and Magnesium).
The decals come from several Xtradecal aftermarket sheets, including a dedicated Lightning stencils sheet, another Lightning sheet with various squadron markings and a sheet for RAF Tornado ADVs.
The code number “XS970” was earmarked to a TSR.2, AFAIK, but since it was never used on a service aircraft it would be a good option for the Levin.
The kit received a coat of matt acrylic varnish from the rattle can – jn this case the finish was intended to bear a slight shine.
This was a project with LOTS of effort, but you hardly recognize it – it’s a single engine Lightning, so what? But welding the Lightning and Su-17 parts together for something that comes close to the P.6/1 necessitated LOTS of body work and improvisation, carving it from wood would probably have been the next complicated option. Except for the surprisingly long tail I am very happy with the result, despite the model’s shaggy origins, and the low-viz livery suits the sleek aircraft IMHO very well.
+++ 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:
This was not an easy choice, but as a kind of prototype I decided that the paint scheme should be rather conservative. However, German aircraft operating over the Atlantic tended to carry rather pale schemes, so that the standard pattern of RLM 70/71/65 (Dunkelgrün, Schwarzgrün and Hellblau) with a low waterline - typical for experimental types - would hardly be appropriate.
I eventually found a compromise on a He 177 bomber (coded 6N+BN) from 1944 that was operated by KG 100: this particular aircraft had a lightened upper camouflage - still a standard splinter scheme but consisting of RLM 71 and 02 (Dunkelgrün and Grau; I used Modelmaster 2081 and Humbrol 240), a combination that had been used on German fighters during the Battle of Britain when the standard colors turned out to be too dark for operations over the Channel. The aircraft also carried standard RLM 65 (or maybe the new RLM76) underneath (Humbrol 65) and on the fin, but with a very high and slightly wavy waterline. As a rather unusual feature, no typical camouflage mottles were carried on the flanks or the fin, giving the aircraft a very bleak and simple look.
Despite my fears that this might look rather boring I adapted this scheme for the Do 217 F-0, and once basic painting was completed I was rather pleased by the aircraft's look! As an aircraft operated at the Western front, no additional markings like fuselage bands were carried.
To set the SG 104 apart from the airframe, I painted the weapon's visible parts in RLM 66 (Schwarzgrau, Humbrol 67), because this tone was frequently used for machinery (including the interior surfaces of aircraft towards 1945).
RLM 02 was also used for the interior surfaces and the landing gear, even though I used a slightly different, lighter shade in form of Revell 45 (Helloliv).
A light black ink washing was applied and post-shading to emphasize panel lines. Most markings/decals came from a Begemot 1:72 He 11 sheet, including the unusual green tactical code - it belongs to a staff unit, a suitable marking for such an experimental aircraft. The green (Humbrol 2) was carried over to the tips of the propeller spinners. The unit's code "1A" is fictional, AFAIK this combination had never been used by the Luftwaffe.
The small unit badge was alucky find: it actually depicts the fictional Baron von Münchhausen riding on a cannonball, and it comes from an Academy 1:72 Me 163 kit and its respective sheet. The mission markings underneath, depicting two anti-ship missions plus a successful sinking, came from a TL Modellbau 1:72 scale sheet with generic German WWII victory markings.
After some soot stains around the engine exhaust and weapon muzzles had been added with graphite, the model was sealed with matt acrylic varnish and final details like position lights and wire antennae (from heated black plastic sprue material) were added.
+++ 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 +++
BEWARE: nothing you see here is real, even though many conversions and their respective background stories were built upon historical facts.
The Messerschmitt Me 510 was a further development of the Me 410 Hornisse ("Hornet"), a German heavy fighter and Schnellbomber used by the Luftwaffe during World War II. The 410 itself had a troubled start, because it essentially had only been a straightforward modification of the Me 210, which had suffered from serious stability flaws and had a bad reputation among its crews.
The 410 handled better but did not show much improvement in performance, though. Me 410 deliveries began in January 1943, two years later than the original plan had called for, and continued until September 1944, by which point a total of 1.160 of all versions had been produced by Messerschmitt Augsburg and Dornier München. When it arrived, it was liked by its crews, even though its performance was not enough to protect it from the swarms of high performance allied fighters they faced.
Still not giving up on the original construction (and with the jigs and tools still available), Messerschmitt started in early 1944 with research into further means of improving the Me 410's performance. One direction was the addition of one or two jets under the fuselage as boosters for combat situations.
Another design path, which eventually led to the Me 510, was the development of turboprop and compound engines as propulsion options, which were based on the respective pure jet engines but offered much better performance and fuel economy than the pure jets. It would also be the more efficient solution compared to added turbojets for pure piston planes, since no dead weight had to be carried, and the overall system was less complex than a mixed powerplant system.
This turboprop concept, as best compromise between performance and short-term readiness for service, was chosen and the modified aircraft, called Messerschmitt Me 510, came to be. The design target was to outperform the Me 410 with as little change to the overall construction as possible, so that old tooling could be used for new aircraft cells. Alternatively, old aircraft should potentially be converted to the improved standard.
Core of the new development was the compact HeS 021 turboprop, a PTL development of the HeS 011 jet engine which was also planned for Focke Wulfs FW P.0310226-127 fighter (a turboprop version of the light 'Flitzer' day fighter). This engine was theoretically to deliver up to 3.300hp (2.426 kw) shaft output, plus 1.100kg (2.424 lb) additional thrust, even though serial types would produce less power under the aspect of reliability.
In order to incorporate this engine into the modified Me 410 a new main wing with laminar profile and new engine nacelles had to be designed. The HeS 021sat in the front part of the engine nacelles above the wings, driving four-bladed propellers. The landing gear retracted into the nacelle's lower section, rotating 90°, much like the Me 410, with the exhaust running above the landing gear wells.
In order to improve directional stability further, the tail surfaces were slightly enlarged, receiving characteristic, square tips. The fuselage was more or less taken from the original Me 410, since it offered a very good field of view and appropriate aerodynamics. With this package, the idea of retrofitting former Me 410 cells was kept, even though later flight tests showed that some more detail modifications had to be made. Most of these concerned the internal structures, the most obvious external change was the nose section, where the original glazing had to be reinforced and finally replaced by solid material – an experience similar to the modification from Douglas’ piston-driven XB-42 to the faster, jet-driven XB-43 of the same era.
Maiden flight of the first prototype took place in Augsburg on 6th of May 1945, with little problems. As benchmark, the Me 410's maximum speed was 625 km/h (388 mph), a cruise speed of 579 km/h (360 mph) and a combat range of 2.300 km (1,400 mi) with up to 1.000 kg (2,204 lbs) of disposable stores carried in- and externally.
The overall flying characteristics of the Me 410 did not change much, but rate of climb and top speed were considerably improved. In level flight, the third prototype Me 510 V3 reached a top speed of 812 km/h (504 mph), and even the serial version with added armament and equipment easily reached 750 km/h (465 mph) top speed and a cruising speed with no external stores of 650 km/h (405 mph). At its time, the Me 510, which quickly received the rather inofficial nickname "Bremse" (Horsefly), was superior to its pure piston engine and turbojet rivals, even though it was clear that the turboprop was only a preliminary solution.
Due to its high speed and under the pressure of Allied bomber raids, the Me 510 was primarily used as a Zerstörer against daylight bombers. Many aircraft received additional weapons, both directly incorporated at the factory but also as field accessories. Popular modifications included two extra 30mm guns (MK 108 or 103) in the bomb bay, or provisions for guided and unguided air to air missiles. A camera equipment package (Rüstsatz 'U3') allowed the fast aircraft to be used for daylight reconnaissance.
Many equipment packages from the earlier Me 410 could be fitted, too, including the massive 50mm BK 5 auto cannon against allied bomber groups. Initially, this package (‘U4’ Rüstsatz) comprised the original autocannon which fired at 45 RPM, with 21 shells in a drum magazine.
This weapon soon was replaced by the even more effective MK 214 B gun of 55mm caliber (Rüstsatz 'U5'). The BK 214 B fired at 180 RPM and proved to be a highly effective weapon at long ranges, outside of the bombers’ defensive armament range. As a drawback the heavy system (the gun plus the ammunition belt with 96 shells weighed 1.124 kg/2.475 lb) filled the whole internal bomb bay and precluded heavy external stores. Therefore, the 13mm machine guns in the nose were frequently removed in order to save weight, sometimes the weapons in the side barbettes, too. But: a single hit with one of the 1.54kg (3.4 lb) shells was enough to bring down a four-engined bomber, so that the fast Me 510 with this weapon became a serious threat in the course of late 1946.
510 general characteristics:
Crew: 2
Length: 42 ft (12,60 m)
Wingspan: 49 ft (14.69 m)
Height: 13 ft 1½ in (4.0 m)
Wing area: 480.11 ft² (44.78m²)
Empty weight: 10.665 lb (4.842 kg)
Loaded weight: 14.405 lb (6.540 kg)
Max. take-off weight: 18.678 lb (8.480 kg)
Maximum speed: 790 km/h (490 mph) at 7.200m (23.500 ft)
Range: 1.400 mi (2.300 km ) with full combat TOW
Service ceiling: 40.900 ft (12.500 m)
Rate of climb: 4.635 ft/min (23,6 m/s)
Wing loading: 29.8 lb/ft² (121.9 kg/m²)
Power/mass: 0.24 hp/lb (0.39 kW/kg)
Engine:
2× Heinkel-Hirth HeS 021 turboprop engines, 1.438 kW (2.500 hp) plus 980 kp (2.158 lb) residual thrust each
Armament: Varied, but typical basic equipment was:
2× 20 mm MG 151/20 cannons with 350 rpg, fixed in the nose
2× 13 mm (.51 in) MG 131 machine guns with 500 rpg in the nose flanks
2× 13 mm (.51 in) MG 131 machine guns with 500 rpg, each firing rearward from FDSL 131/1B remote-operated turret, one per side;
Up to 1.200 kg (2.643 lb) of disposable stores in- and externally
In the field, many modifications were made and several additional weapon packages with guns, guided and unguided missiles or special weapons were available (so-called ‘Rüstsätze’).
The kit and its assembly:
I am not certain when inspiration struck me for this fantasy aircraft - I guess it was when I tinkered together the Hü 324 whif, which was itself based on a 1:72 scale Il-28 bomber. When I browsed for a respective donation kit I also came across the 1:100 scale kit of the Soviet light bomber from Tamiya, and that stirred something: The Il-28's vintage contours would perfectly suit a Luft '46 aircraft, and with some calculations it was clear that the 1:100 wings would be suitable for something in the class of a 1:72 DH Mosquito or Bf 110. Then, the ill-fated Me 410 came to the scene as a potential late war basis aircraft, and from this starting point the idea of an evolutionary next step of the type, the Messerschmitt Me 510, was born.
Basically this model is a kitbashing of a Tamiya Il-28 in 1:100 (wings & engine nacelles) and the fuselage of a Matchbox Me 410. The IL-28's wings were turned upside down, so that the nacelles would now ride on the wings' top.
This not only looks cool and 'different', it's also plausible because the landing gear could retract into the wings under the nacelles (with the main landing gear doors closed, just like the original Me 410), it would also reduce the angle of the aircraft on the ground to a sensible degree - with the engines under the wings plus the landing gear would have been much to steep!
Fitting the wings to the fuselage was pretty easy, even though the original Me 410 wing profile was much thicker than the slender Il-28 wings. Cleaning and blending the wing root areas was a bit tricky, but the parts get together well.
As a design twist and for a uniform look I also replaced the whole tail section, matching the angular look of the thin new main wings. The horizontal stabilizers are wing tips from a Matchbox Me 262, the vertical fin is a modified outer wing part from a Matchbox Grumman Panther.
The engine nacelles were taken OOB. I just filled the Il-28's landing gear wells and their covers with putty, since they'd end on top of the new engines.
The propellers come from Matchbox P-51 Mustangs, outfitted with pointed spinners and held by a metal pin in a polystyrene tube which runs through the original intake splitter. Looks pretty martial, even though the nacelles ended up a bit close to the fuselage. The overall look reminds of the Short Sturgeon, but is not inplausible. A compact aircraft!
The cockpit received some side panels, news seats and some equipment, since the original Matchbox kit features almost nothing beyond a floor plate, two broad benches as seats and pilot figures. I also opened the cockpit hatches, since the aircraft would be built for ground display, with the landing gear extended.
From the original kit the BK 5 cannon installation was taken over, but I added a scratch-built, bigger muzzle brake. Since the aircraft was to become a high speed interceptor/Zerstörer for daylight operations, I did not add any further external ordnance.
Painting and markings:
I pondered about a potential livery for a long time. Almost any Me 410 was delivered in RLM 74/75/76 livery, and some at the Western front in France were operated in RLM 70/71/65, with a low waterline. But I found this pretty... boring. So I made up a fantasy livery which I found suitable for high altitude operations and based on my knowledge of late Luftwaffe paint scheme - pretty complex:
The aircraft was to be light in color, primarily camouflaged for aerial combat. I ended up with something that was planned as something that could have almost been called 'low-viz': all lower surfaces received a basic tone of RLM 76 (from Testors), with a raised waterline on all flanks. This light blue-grey would blend into a slightly darker FS 36320 on the higher flanks, almost up to the upper surfaces.
But in the end, the flanks received more spots than intended, and I ended up with a rather conservative livery - but it ain't bad at all. But so it goes...
The upper wing surfaces received a wavy scheme in RLM 71 (Drak Green) and 75 (Middel Grey). These are not typical late war colors, I rather used them due to the lighter shades. On the fuselage, just the fuselage crest was painted with more or less dense blotches of these tones, blending into more patches of RLM 02 on the flanks.
To add some more unconventional detail, the fuselage sides and undersides also received large, cloudy patches of RLM 77 - a very light grey. This detail was featured on some late-war He 177 bombers, but you can hardly tell these extra blotches because they have only little contrast to the RLM 76.
The tail fin was painted all white - a formation sign for a squadron leader, typical for German late WWII fighters. The black and white fuselage stripe is the ID of Jagdgeschwader 26 (which operated Fw 190D-9 from airfields in northern Germany, Flensburg was one of them), the red number abd the "+" code identify the machine as being part of the eighth Staffel.
In the end, a very subtle whif. The new engines are most obvious, and they change the look of the Me 410 dramatically. But only on second glance you recognize the other changes. The new wings/stabilizers with their square-shaped tips create a very slender and elegant look, the aircraft just looks fast and agile like a true heavy fighter should. Mission accomplished!
+++ 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 Dassault/Dornier Alpha Jet is a light attack jet and advanced trainer aircraft co-manufactured by Dornier of Germany and Dassault-Breguet of France. In the early 1960s, European air forces began to consider their requirements for the coming decades. One of the results was the emergence of a new generation of jet trainers. The British and French began a collaboration on development of what was supposed to be a supersonic jet aircraft in two versions: trainer and light attack aircraft. The result of this collaboration, the SEPECAT Jaguar, proved to be an excellent aircraft, but its definition had changed in the interim, and the type emerged as a full-sized, nuclear-capable strike fighter, which two-seat variants were used for operational conversion to the type, not for the general training.
This left the original requirement unfulfilled and so the French began discussions with West Germany for collaboration. A joint specification was produced in 1968. The trainer was now subsonic, supersonic trainers having proven something of a dead end. A joint development and production agreement was signed in July 1969 which indicated that the two nations would buy 200 machines, each assembled in their own country.
The Luftwaffe decided to use the Alpha Jet mainly in the light strike role, preferring to continue flight training in the United States on American trainer types instead of performing training in cloudy and crowded Germany. The first production German Alpha Jet performed its maiden flight on 12 April 1978, with deliveries beginning in March 1979. This version was designated the Alpha Jet A (the "A" standing for Appui Tactique or "Tactical Strike") or Alpha Jet Close Support variant. The Luftwaffe obtained 175 machines up to 1983, with the type replacing the Fiat G91R/3. Manufacture of Alpha Jet subassemblies was divided between France and Germany, with plants in each country performing final assembly and checkout. The different avionics fit made French and German Alpha Jets easy to tell apart, with French machines featuring a rounded-off nose and German machines featuring a sharp, pointed nose.
Even though the Alpha Jet A was suitable in the ground attack role and had even been tested in aerial combat against helicopters in 1979, the German Luftwaffe decided in the mid-80ies that – facing the Cold War threat from the east – a more powerful but still economic plane for the close attack role, esp. against hardened ground targets and attack helicopters like the Mi-24 would be needed. Even though such "Alternate Close Support" versions of the Alpha Jet were available at that time, even though these were modified two-seaters. Such planes were bought by Cameroon and Egypt, but from the German Luftwaffe a specialized, more capable plane with a higher strike and survival potential was requested.
In 1986, Dornier developed a respective specialized version, called the Alpha Jet C (for "combat"). This plane was heavily modified, optimized for the ground attack role. It featured a new, single-seated nose section with an armoured cockpit in a much higher position than on the original two-seater. The Alpha jet C version's prominent, pointed nose quickly gave it among its test pilots the nickname "Nasenbär" (Coati).
The new space was used for avionics and an internal Oerlikon 35mm cannon – a variant of the same cannon used in the Gepard anti aircraft tank, firing armour piercing shells with a muzzle velocity of 1,440 m/s (4,700 ft/s) and a range of 5.500m. Avionics includecd SAGEM ULISS 81 INS, a Thomson-CSF VE-110 HUD, a TMV630 laser rangefinder in a modified nose and a TRT AHV 9 radio altimeter, with all avionics linked through a digital databus.
New wings were developed, with a thicker profile and less sweep, and non-jettisonable wing tip tanks as well as two more weapon hardpoints (for a total of six, plus one under the fuselage) added. The landing gear was reinforced for a higher TOW and operation on improvised runways. Fuselage and tail externally looked much the same as the original Alpha Jet A, but internally most structures were reinforced and technical modules placed in new positions.
The C version was from the start powered by two more powerful Larzac 04-C20 turbofans which would also be used in an update for the Luftwaffe’s Alpha Jet As. The hydraulic system was doubled, so that both engines could run separately, and kevlar and titanium armour plating added to vital areas around the lower hull.
The first prototype 98+52 made its maiden flight at Friedrichshafen on 1st of June 1988. It was officially allocated to the JaboG 43 in Oldenburg, but actually spent almost all the time at the Luftwaffe’s Waffentechnische Dienststelle (Flight test center) WTD 61 in Manching near Munich, where it underwent a thorough testing program. More than once the prototype was transferred to Beja, Portugal, for weapon tests and training, as well as direct comparison with the standard Alpha Jet A and other NATO planes. A second airframe was built in 1987 but only used for static tests, system integration and finally damage resilience tests, after which it was written off and scrapped.
While the Alpha Jet C showed high agility at low level and a high survival potential in a hostile battlefield environment, the prototype remained a one-off. In the end, the German Luftwaffe did not want to add another type to its arsenal, despite its similarity with the standard Alpha Jet. Export chances for such a specialized, yet light aircraft were considered as low, since modified Alpha Jet versions were already available and other planes like the AMX or BAe Hawk offered more versatility, and were simply more up to date.
Hence, further development was stopped in September 1989, also under the influence of political changes and the breakdown of the Eastern Block. Even though 98+52 was kept at Manching as a test aircraft for various tasks, the plane was eventually lost in a crash due to hydraulic failure on 3rd of March 1993 – the pilot escaped safely, but 98+52 totally written off.
General characteristics:
Crew: 1
Length: 12.60 m (41 ft 4 in)
Wingspan: 10.73 m (35 ft 2 1/2 in)
Height: 4.24 m (13 ft 11 in)
Wing area: 213.7 ft² (19.85 m²)
Airfoil: NACA 23015 (modified) at root, NACA 4412 (modified) at tip
Empty weight: 3.680 kg (8.105 lbs)
Loaded weight: 5.900 kg (13.000 lbs)
Max. takeoff weight: 8.200 kg (18.060 lbs)
Powerplant: 2 × SNECMA Turbomeca Larzac 04-C20 turbofans, 14,12 kN (3.176 lbs) each
Performance
Maximum speed: 860 km/h (465 knots, 536 mph)
Stall speed: 167 km/h (90 knots, 104 mph) (flaps and undercarriage down)
Combat radius: 610 km (329 nmi, 379 mi) lo-lo-lo profile, w. underwing weapons incl. two drop tanks
Ferry range: 2,940 km (1,586 nmi, 1,827 mi)
Service ceiling: 14,630 m (48,000 ft)
Rate of climb: 57 m/s (11,220 ft/min)
Armament
1× 35 mm (1.38 in) Oerlikon KDA cannon w/150 rds under the lower forward fuselage, offset to starport side.
Seven hardpoints (one under fuselage, three under each wing) for a total external load of up to 3.085 kg (6.800 lbs), including AGM-65 Maverick, Matra rocket pods with 18× SNEB 68 mm rockets each, a variety of bombs (such as the Hunting BL755 cluster bombs) or Drop tanks for extended range, and AIM-9 Sidewinder or ASRAAM for self-defence
The kit and its assembly
Yes, another whif, and a modern type, too. The idea came when I found a pair of vintage wings from a vintage Matchbox BAC Strikemaster in good shape and thought "Well, where could these fit...?" Being a fan of the Su-25 I considered building something similar from scratch und using these 30 year old parts.
The Alpha Jet has a basically similar layout, and the wings would match in size. Then, the "new" plane should become a dedicated single-seater, not simply a two-seater with a covered rear cockpit. Browsing through the kit stack I found a A-4F from Revell, and its nose section turned out to be an almost perfect fit for the Alpha Jet fuselage (the vintage Heller kit).
Fitting these parts together required some major surgery and putty work, but the result looks quite convincing. Other additions are a Matchbox pilot figure and some cockpit details, a nose cone from a Fiat G.91 R/3 as an integral laser rangefinder housing, the Strikemaster wings, a modified landing gear (main wheels from the Skyhawk, front wheel from an IAI Kfir) and the armament in the form of the gun, seven hardpoints and the mixed ordnance from the German Luftwaffe arsenal - everything collected from the junkyard.
Painting
While German Luftwaffe machines can look rather boring, various camouflage trials have been conducted during the 80ies and 90ies for the F-4F, Alpha Jet and Tornado fleet. Esp. Phantom IIs saw extensive experiments for air superiority and ground attack paint schemes - and these schemes carried inofficial names like "Milchkuh" (Dairy Cow), "Polizeimühle" (Police Jalopy) or "Disco Bomber".
The whiffy Alpha Jet was a nice opportunity to incorporate one of these experimental schemes, and I settled for something which was applied to F-4F '37+07' and inofficially dubbed "Wolkenmaus" (Cloud Mouse). The Alpha Jet is a good subject, since its stepped side structure with engine nacelles and its spine tunnel is similar to the Phantom II, so that the cammo concept could be easily copied.
Anyway, the authentic "Wolkenmaus" colours are supposed to be (and what I used on the kit)...
On the upper sides:
● RAL 6014 Gelboliv (~FS 34087; Olive Drab, Testors 1711)
● RAL 7012 Basaltgrau (~FS 36152; Humbrol 27)
● RAL 9005 Tiefschwarz, even though I rather believe it to be RAL 7021 Schwarzgrau (darker than FS 36081; Humbrol 182)
Flanks::
● Mix of 2/3 RAL 7035 Lichtgrau + 1/3 RAL 7000 Fehgrau (~FS36473; Aircraft Grey, Testors 1731)
Undersides:
● Mix of 5/6 RAL 7035 Lichtgrau + 1/6 RAL 7000 Fehgrau (~RLM 63; Lichtgrau, Testors 2077)
The tones are just approximations, since I did not want to get original tones just for one project. Hey, it's just a model kit!
The landing gear and its wells were painted in aluminum, the respective covers' inside with Humbrol 81 (Olive Yellow) in a primer finish for some contrast. Cockpit interior as well as the air intakes were kept in in Light Gull Grey (FS 36640, Humbrol 129). The complex paint scheme was applied, as per usual, by brush and hand. The kit received a light black ink wash and some dry painting with lighter tones - the model was not supposed to look dirty, only a bit used.
Decals were scrapped together. JaboG 43 emblems and warning signs were taken from the original Heller decal sheet. The national insignia were taken from a Revell PAH-2 kit, the registration '98+52' was puzzled together with single digits from an aftermarket decal sheet from TL Modellbau. AFAIK, '98+52' has not been used yet by the Luftwaffe, which designates its test aircraft in the 98+XX and 99+XX range. A "true" and active Alpha Jet would have received a 40+XX or 41+XX.
Finally, everything was sealed under a water-based/acryllic matte coat - the Testors colours proved to be very touchy to the Humbrol varnish I normally use.
In the end, I achieved what I wanted, even though not truly perfect. But the kit looks like an 'analogue' Su-25, and actually the whiffy Alpha Jet C reminds much of the pre-Su-25 concepts: the SPB and subsequent LSSh/T-8 attack aircraft?
+++ 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 on historical facts. BEWARE!
Some background:
The Parder was a successor of the Tiger I & II tanks, combining the latter's thick armor with the armor sloping used on the Panther medium tank (which was, in fact, inspired by Soviet designs, most of all by the T-34). While several Entwicklungspanzer designs were under development, the Parder was a short-term attempt to overcome the Tiger II's main shortcoming: its weight of almost seventy metric tons (it was protected by up to 180 mm/7.1" of front armor!), the resulting lack of mobility and an overburdened drivetrain originally intended for a lighter vehicle. Leaking seals and gaskets also took their toll on reliability.
In order to keep the development phase short the Parder used basically the same chassis as the Tiger II, as well as the engine, transmission and the long barreled 8.8 cm KwK 43 L/71 gun. But it reveiced a new hull with optimized armor and many detail modifications that reduced the overall weight by more than ten tons, getting overall weight back to the level of the Tiger I
The SdKfz. 190 used a conventional hull design with sloped armor from all sides, resembling the layout of the T-34 a lot. Its was so effective that the front armor could be reduced to 120 mm (4.7 in) with only little loss in protection. The crew was reduced to four, only the driver remained in the hull and the front machine gun was omitted, too.
The 'Parder' (archaic German term for leopard), how the vehicle was semi-officially christened by the Entwicklungskommission Panzer, had a rear mounted engine and used nine steel-tired overlapping road wheels per side with internal springing, mounted on transverse torsion bars.
The turret had been designed by Krupp and featured a rounded front and steeply sloped sides, with a difficult-to-manufacture curved bulge on the turret's left side to accommodate the commander's cupola (often related to as the "Porsche" turret). The powerful 8.8 cm KwK 43 L/71 gun was combined with the Turmzielfernrohr 9d (German "turret telescopic sight") monocular sight by Leitz - a very accurate and deadly weapon.
During practice, the estimated probability of a first round hit on a 2 m (6 ft 7 in) high, 2.5 m (8 ft 2 in) wide target only dropped below 100 percent at ranges beyond 1,000 m (0.62 mi), to 95–97 percent at 1,500 metres (0.93 mi) and 85–87 percent at 2,000 m (1.2 mi), depending on ammunition type. Recorded combat performance was lower, but still over 80 percent at 1,000 m, in the 60s at 1,500 m and the 40s at 2,000 m.
Penetration of armored plate inclined at 30 degrees was 202 and 132 mm (8.0 and 5.2 in) at 100 m (110 yd) and 2,000 m (1.2 mi) respectively for the Panzergranate 39/43 projectile (PzGr—armor-piercing shell), and 238 and 153 mm (9.4 and 6.0 in) for the PzGr. 40/43 projectile between the same ranges. The Sprenggranate 43 (SpGr) high-explosive round was available for soft targets, or the Hohlgranate or Hohlgeschoss 39 (HlGr—HEAT or High explosive anti-tank warhead) round, which had 90 mm (3.5 in) penetration at any range, could be used as a dual-purpose munition against soft or armored targets.
Like all German tanks, the Parder had a gasoline engine; in this case the same 700 PS (690 hp, 515 kW) V-12 Maybach HL 230 P30 which powered the Panther, Tiger I and Tiger II tanks. The Tiger II was under-powered with it, though, and consumed a lot of fuel, which was in short supply for the Germans, but in the Parder it proved to be adequate, even though performance was not oustanding. The transmission was the Maybach OLVAR EG 40 12 16 Model B, giving eight forward gears and four reverse, which drove the steering gear.
In order to distribute the tank's weight an extra wide track was used, but this meant that each tank was issued with two sets of tracks: a normal "battle track" and a narrower "transport" version used during rail movement. The transport tracks reduced the overall width of the load and could be used to drive the tank short distances on firm ground.
The Parder was, like many German late war designs, rushed into combat, but thanks to its Tiger I & II heritage many mechanical teething problems had already been corrected. Reliability was considerably improved compared to the much heavier Tiger II, and the Parder did prove to be a very effective fighting vehicle, especially in a defensive role. However, some design flaws, such as its weak final drive units, were never corrected due to raw material shortages, and more tanks were given up by the crews than actually destroyed in combat.
The Parder was issued to heavy tank battalions of the Army (Schwere Heerespanzerabteilung – abbreviated s.H.Pz.Abt) where it replaced the Tiger I & II.
Specifications:
Crew Four (commander, gunner, loader, driver)
Weight 54 tonnes (60 short tons)
Length 7.02 metres (23 ft in) (hull only)
10.64 metres (34 ft 10 1/3 in) with gun forward
Width 3.88 metres (12 ft 9 in)
4.14 metres (13 ft 6 3/4 in) with optional Thoma shields
Height 2.84 metres (9 ft 4 in) w/o AA machine gun
Suspension torsion-bar
Ground clearance: 495 to 510 mm (1 ft 7.5 in to 1 ft 8.1 in)
Fuel capacity: 820 l (180 imp gal; 220 US gal)
Armor:
30–120 mm (1.2 – 4.7 in)
Performance:
Speed
- Maximum, road: 41.5 km/h (25.8 mph)
- Sustained, road: 38 km/h (24 mph)
- Cross country: 15 to 20 km/h (9.3 to 12.4 mph)
Operational range: 240 km (150 mi)
Power/weight: 12,96 PS/tonne (11,5 hp/ton)
Engine:
V-12 Maybach HL 230 P30 gasoline with 700 PS (690 hp, 515 kW)
Transmission:
Maybach OLVAR EG 40 12 16 B (8 forward and 4 reverse)
Armament:
1× 8.8 cm KwK 43 L/71 with 80 rounds
1× co-axial 7.92 mm Maschinengewehr 34 with 3.000 rounds
The kit and its assembly:
Something different… a whif tank! This was spawned from curiosity and the “wish” to build a German vehicle that would fit right into the E-25… E-100 range of experimental tanks.
It was to become a battle tank, and while browsing options and donation kits, I settled upon a replacement for the formidable but heavy and cumbersome Tiger B, also known as Tiger II, Königstiger or (wrongfully translated) King Tiger.
Anyway, creating a tank that would look (late war) German and still be whiffy was trickier than expected, and finally easier than expected, too. My solution would be a kit bashing: using many Tiger B parts (including the stylish Porsche tower and the running gear) and combining it with a hull that would offer better armor angles and look less “boxy”.
I effectively bashed two kits: one is the excellent 1:72 early Tiger B from Dragon, the other is Roden’s Soviet IS-3 tank – also very nice, even though the styrene is somewhat brittle.
My biggest fear was the running gear – combining the IS-3 hull with the Tiger B’s totally different legs scared me a lot – until I found that the parts from both kits (the Tiger B’s lower hull with all the suspension and the IS-3’s upper hull) could be combined rather easily combined. Just some cuts and improvised intersections, and the “new” tank hull was done!
As a side effect, the huge turret moved forward, and this considerably changes the silhouette. The IS-3’s opening had only to be widened slightly in order to accept the Porsche turret. Things matched up pretty well, also concerning size and proportions.
Otherwise, not much was changed. All wheels and tracks come from the Trumpeter Tiger B, the turret was also borrowed wholesale. I just changed some details (e. g. moving the spare track elements to the hull front), added some handles and also a heavy AA machine gun on the commander’s cupola, which is OOB, too.
Too simple? Well, for me it was not enough. For a more personal edge to the kit I decided to add Thoma skirts! Not the massive 5mm plates you frequently see on late Panzer IV tanks and its derivatives, rather the mesh type – lighter, less material-consuming, and a very special detail.
These were scratched. There are PE sets available, but that was too expensive and I was not certain if such items would fit in shape and size? So I made a cardboard template for the flanks and built a pair of skirts from styrene strips and a fine PET mesh that I had salvaged from a wallet long time ago.
The stuff is hard to glue onto something, so the styrene frame had to carry the mesh parts – and it works! The attachments to the hull were also scratched from styrene.
The Thoma shields add more width to the flat tank, but I think that they set the kit even more apart than just the borrowed IS-3 hull?
Painting and markings:
Hmmm, not totally happy with the finish. This was supposed to become a simple Hinterhalt (Ambush) paint scheme in Dark Yellow, Olive Green and Red Brown, but I did so much weathering that not much from the scheme can be recognized…
Painting was straightforward, though – I used Humbrol 94 and 173 as well as Modelmaster’s RAL 6003 as basic colors. The scheme’s benchmark is the official Tiger B scheme.
The basic colors received mottles in green on the yellow and yellow on the green and brown, and then the thing was thoroughly weathered with a black ink wash, dry-brushing, some aquarelle paint to simulate dust, and finally some pigments that simulate mud.
The tracks are made from soft vinyl, and also received a paint treatment in order to get rid of that shiny vinyl look: at first, with a mix of black and silver, which was immediately wiped off again, and later with a second, similar turn with silver and dark brown.
The mud was added just before the whole running gear was mounted as one of the final assembly stages, and final retouches were made with acrylic umbra paint.
Alas, I think I overdid it – much of the formidable and very attractive paint scheme was lost, even though the yucky, brownish finish now also works fine and looks like rough duty?
So, an experiment with good and bad results. Certainly not the last whif tank (at least one more on the agenda), and after so many aircraft a new kind of challenge. ^^
+++ 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 origins of the Henschel Hs 165 date back to early 1937, when the Reichsluftfahrtministerium (RLM, German Ministry of Aviation) issued a specification for a carrier-based torpedo bomber to operate from Germany's first aircraft carrier, the Graf Zeppelin construction of which had started at the end of 1936. The specification was originally issued to two aircraft producers, Fieseler and Arado, and demanded an all-metal biplane with a maximum speed of at least 300 km/h (186 mph), a range of at least 1,000 km and capable both of torpedo and dive-bombing. By the summer of 1938 the Fieseler design proved to be superior to the Arado design, the Ar 195.
Anyway, by the time the Fi 167 prototype was ready for tests and proved its excellent handling, the biplane layout was already outdated and did not promise much development potential. Therefore, the RLM's request was repeated in late 1938 and a monoplane requested. Since the Graf Zeppelin was not expected to be completed before the end of 1940, the RLM did not put much pressure behind the project.
Among others, Henschel replied with the Hs 165. It was a compact and conservative low wing monoplane of all-metal construction with a crew of two (pilot and navigator/observer/gunner) under a common, heavily framed and high glasshouse canopy. In order to achieve a high performance, the airframe was originally developed around the new 14 cylinder BMW 139 radial engine with 1,550 hp (1,140 kW). The main landing gear was fully retractable, retracting outwards into wells that were part of the outer, foldable wings. Similar to the Ju87 C, the wings could manually be folded backwards, so that the aircraft became very compact for onboard stowage.
The tail wheel, placed behind a V-shaped arrester hook, could not be retracted, even though a mechanism allowed the control of the tail's ground clearance for the carriage of a torpedo under the fuselage and an optimized angle of attack for starts and landings.
Armament consisted of a pair of 20mm MG FF cannons in the wings, a pair of 7.92mm machine guns above the engine, synchronized to fire through the propeller arc, and another single light machine gun for rear defense.
Among the special equipment of the Hs 165 for naval operations was a two-seat rubber dinghy with signal ammunition and emergency ammunition. A quick fuel dump mechanism and two inflatable 750 L (200 US gal) bags in each wing and a further two 500 L (130 US gal) bags in the fuselage enabled the aircraft to remain afloat for up to three days in calm seas.
When the first two prototypes of the Hs 165 (the V-1 and V-2) were about to be finished, it became clear that the BMW 139 would not materialize, but rather be replaced by an even more powerful engine. The new design was given the name BMW 801 after BMW was given a new block of "109-800" engine numbers by the RLM to use after their merger with Bramo. The first BMW 801A's ran in April 1939, only six months after starting work on the design, with production commencing in 1940.
Hs 165 V-1 was re-engined and ready for testing in mid 1940, while the first catapult launch tests on board of the Graf Zeppelin carrier were already carried out with Arado Ar 197s, modified Junkers Ju 87Bs and modified Messerschmitt Bf 109Ds. However, the Graf Zeppelin was still incomplete and not ready for full military service, and the changing strategic situation led to further work on her being suspended. In the wake of this decision, the completion of further carrier-borne aircraft was stopped and the completed examples were taken into Luftwaffe service in several evaluation/test units.
The Hs 165 initially fell victim to this decision, and only five airworthy airframes were completed as Hs 165 A-0 pre-production aircraft. Anyway, these were kept in service as test beds and other development duties, and Henschel kept working on detail improvements since the aircraft was also intended to become a land-based replacement for the Ju 87 dive bombers which had become obsolete by 1941, too. This aircraft was planned as the Hs 165 B.
However, by the spring of 1942 the usefulness of aircraft carriers in modern naval warfare had been amply demonstrated, and on 13 May 1942, the German Naval Supreme Command ordered work resumed on the German carrier projects. Henschel was happy to have the refined Hs 165 A at hand, and the type was immediately put into production.
The resulting Hs 165 A-1 differed in many equipment details from the former pre-production aircraft, and the armament was upgraded, too. The wing-mounted MG FF 20mm cannons were replaced with more effective and lighter MG 151/20 guns, while the pair of MG 17 machine guns above the engine was replaced by a pair of heavy MG 131 machine guns. The observer's single, light MG 15 machine gun was also upgraded to a belt-fed MG 81Z with two barrels, or a single MG 131.
The original BMW 801A engine remained the same, though, and due to the Hs 165 A-1’s higher overall weight the aircraft's performance deteriorated slightly.
Production did not last for long though, because further work on the Graf Zeppelin was soon terminated, and this time for good. In the meantime, the RLM had also decided to reduce the variety of aircraft types and rather develop specialized versions of existing aircraft than dedicated types like the Hs 165. As a consequence Hs 165 production was stopped again in June 1943, with several improved versions on the drawing board. These included the A-2 single seater and the C with an alternative liquid-cooled Jumo 213 powerplant.
The land-based Hs 165 B never materialized because, at the time of the type’s introduction into service, the dive bomber concept had turned out to be much too vulnerable in the European theatre of operations. Effectively, the Hs 165 needed cover from more agile fighters and did not stand a chance against enemy fighters.
However, until the end of production about 100 Hs 165 aircraft had been delivered to land-based front line units, since no German aircraft carrier ever materialized, and these machines were primarily used in Northern Europe in the coastal defense role and for harassment attacks in the North and Baltic Sea until 1945.
In service, they were gradually replaced by Ju 88 torpedo bombers and the Fw 190 A-5a/U14, which was able to carry a single torpedo, too, but offered a much better performance than the heavy and large Hs 165.
General characteristics:
Crew: 2 (pilot and observer/gunner)
Length: 11.08 m (36 ft 4 in)
Wingspan: 13.95 m (45 ft 9 in)
Height: 4.18 m (13 ft 8 in)
Wing area: 26.8 m² (288 ft²)
Empty weight: 9,725 lb (4,411 kg)
Max. takeoff weight: 14,300 lb (6,486 kg)
Powerplant:
1 × BMW 801A air-cooled 14 cylinder two row radial engine, 1,700 hp (1,250 kW)
Performance:
Maximum speed: 302 mph (262 kn, 486 km/h) at 11,000 ft (3,350 m)
Cruise speed: 235 mph (204 kn, 378 km/h)
Range: 1,400 miles (1,220 nmi, 2,253 km)
Service ceiling: 22,500 ft (6,860 m)
Wing loading: 43.1 lb/ft² (210 kg/m²)
Power/mass: 0.12 hp/lb (0.19 kW/kg)
Armament:
2× 20 mm MG 151/20 cannon in the wings
2 × 13 mm MG 131 machine gun above the engine
1 × 7.92 mm MG 81Z, firing backwards
1× 1000 kg (2,200 lb) bomb, or
1× 765 kg (1,685 lb) torpedo, or
1 × 500 kg (1,100 lb) bomb plus 4 × 50 kg (110 lb) bombs, or
4 × 250 kg (551 lb) ventrally
The kit and its assembly:
Another entry for the 2016 "In the Navy" Group Build at whatfimodelers.com, and in this case a complete kitbash for a fictional aircraft. Originally, this idea started as a Hs 126 on floats, which then turned into a low wing aircraft (in the Ju 87 class) and finally evolved into a carrier-capable torpedo bomber. Pretty dramatic evolution, but once the plan was settled, things quickly turned into hardware.
Ingredients include:
- Fuselage, cockpit and stabilizers (though mounted differently) from an Italeri Hs 126
- Wings from a Mastercraft (ex ZTM Plastyk) PZL 23 Karas, with the ventral gondala removed
- Landing gear from a Matchbox He 70, wheels from a Mastercraft Su-22;
- Engine/cowling from an Academy Fw 190, plus various donation parts and a putty plug
- Canopy from a Matchbox Brewster Buffalo
- German torpedo from the spares box (IIRC from an Italeri He 111)
Even though this is a kitbash, work was rather easy and straightforward, because most of the parts come from OOB donation kits. First, the Hs 126 fuselage was finished without an interior and the Fw 190 nose section transplanted. Inside, a styrene tube was added in order to hold the propeller and let it spin freely. In parallel, the landing gear wells were cut into the wings and the flaps separated/opened. Then the canopy was integrated into the fuselage, using styrene strips and putty.
For the wings, a wide opening had to be cut into the Hs 126’s lower fuselage, and the parts took some putty work to blend together.
Once the wings were in place, the landing gear was mounted as well as the scratched torpedo hardpoint. The cockpit interior followed suit with new seats and two figures, then the Buffalo canopy was modified for the rear machine gun mount and glued into place.
Painting and markings:
I wanted a rather "dry", typical German livery, and settled for a simple splinter scheme with a low waterline in the naval colors RLM 72 (a kind of very dark olive drab) and 73 (a bluish, very dark green) with light blue (RLM 65) undersides.
In this case I used enamels from the Modelmaster Authentic range, treated with a light black ink wash and with serious panel shading (with Humbrol 66 and a mix of Humbrol 30 + 77, respectively), because some color pictures I got hands on from early German naval aircraft (e. g. He 115 or Ar 196) suggest that the two murky, green tones weathered and bleached easily, and the enhanced contrast between the very similar colors was IMHO helpful, anyway.
The interior and the landing gearw as painted in contemporary RLM 02, the torpedo is simple black with a gun metal tip and a brass propeller.
The markings had to be puzzled together; I originally wanted the kit to be part of one of the Küstenfliegergruppen, in particular KüFliGr 106. But in mid 1943, these were partly integrated into the Kampffliegergruppen, and offensive parts of KüFliGr 106 were added to KG 6. It took some time to figure out where KG 6 was operating in the time frame I wanted to place the Hs 165, and eventually found 8./KG 6 from the third group that was based in Belgium at that time and flew Ju 88 torpedo bombers - so I added the Hs 165 to that squadron.
As a side effect, the aircraft would not carry any of the fuselage bands or other bright ID markings - the only color highlights are the red wing tip and the individual code "K" letter, and I used a grey decal for the 8th squadron's code letter "S" for better contrast with the dark green livery. Another "highlight" is a KG 6 emblem behind the engine, which I found on a Peddinghaus Decals sheet in the stash. Anyway, this minimal and very conservative livery does not look bad at all, though?
A complex kitbashing,done in about a week, and despite some trouble and major body work the result looks IMHO very good - especially the flight scenes, with the retracted (retouched...) landing gear show the sleek lines of the Hs 126, the fictional Hs 165 looks pretty fast and purposeful. And with a different engine, this could also carry some Hinomaru - the thing reminds me a lot of Japanese torpedo bombers (e. g. the B5N?) and carrier-borne reconnaissance aircraft?
An original character & 1/6 scale kitbash figure, inspired by the classic 'Devil May Cry' videogames from Capcom, conceived, assembled and photographed by myself employing layered filters from Enjoyphoto, Superphoto and additional editing apps installed on my cameraphone.
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
Although the performance increases of jet-powered aircraft introduced towards the end of World War II over their piston-powered ancestors were breathtaking, there were those at the time who believed that much more was possible. As far back as 1943, the British Ministry of Aircraft Production had issued a specification designated "E.24/43" for a supersonic experimental jet aircraft that would be able to achieve 1,600 KPH (1,000 MPH).
Beginning in 1946, a design team at English Electric (EE) under W.E.W. "Teddy" Petter began design studies for a supersonic fighter, leading to award of a Ministry of Supply (MoS) contract in 1947 under specification "ER.103" for a design study on an experimental aircraft that could achieve Mach 1.2.
The MoS liked the EE concepts, and in early 1949 awarded the company a contract under specification "F.23/49" for two flying prototypes and one ground-test prototype of the "P.1".
The P.1 was defined as a supersonic research aircraft, though the design had provisions for armament and a radar gunsight. It incorporate advanced and unusual design features, such as twin turbojet engines mounted one above the other to reduce aircraft frontal area; and strongly swept wings, with the wingtip edges at a right angle to the fuselage, giving a wing configuration like that of a delta wing with the rear inner corners cut out. The aircraft featured an elliptical intake in the nose.
The P.1's performance was so outstanding that the decision was quickly made to proceed on an operational version that would be capable of Mach 2. In fact, the second P.1 prototype featured items such as a bulged belly tank and fit of twin Aden Mark 4 30 millimeter revolver-type cannon, bringing it closer to operational specification.
Orders were placed for three "P.1B" prototypes for a production interceptor and the original P.1 was retroactively designated "P.1A". The P.1B featured twin Rolls-Royce Avon afterburning engines and a larger tailfin. An airborne intercept (AI) radar was carried in the air intake shock cone, which was changed from elliptical to circular. The cockpit was raised for a better field of view and the P.1B was armed with two Aden cannon in the upper nose, plus a pack under the cockpit that could either support two De Havilland Blue Jay (later Firestreak) heat-seeking AAMs or 44 Microcell 5 centimeter (2 inch) unguided rockets.
The initial P.1B prototype performed its first flight on 4 April 1957 and the type entered RAF service as EE Lightning F.1. RAF Number 74 Squadron at Coltishall was the first full service unit, with the pilots acquiring familiarization with the type during late 1960 and the squadron declared operational in 1961.
However, while the Lightning was developed further into more and more advanced versions. Its concept was also the basis for another research aircraft that would also be developed into a high performance interceptor: the P.6/1, which later became the “Levin” fighter.
P.6 encompassed a total of four different layouts for a Mach 2+ research aircraft, tendering to ER.134T from 1952. P.6/1 was the most conservative design and it relied heavily on existing (and already proven) P.1 Lightning components, primarily the aerodynamic surfaces. The most obvious difference was a new fuselage of circular diameter, housing a single Rolls Royce RB.106 engine.
The RB.106 was a two-shaft design with two axial flow compressors each driven by its own single stage turbine and reheat. It was of similar size to the Rolls-Royce Avon, but it produced about twice the thrust at 21,750 lbf (96.7 kN) in the initial version. The two-shaft layout was relatively advanced for the era; the single-shaft de Havilland Gyron matched it in power terms, while the two-spool Bristol Olympus was much less powerful at the then-current state of development. Apart from being expected to power other British aircraft such as those competing for Operational Requirement F.155, it was also selected to be the powerplant for the Avro Canada CF-105 Arrow and led to the Orenda Iroquois engine, which even reach 30.000 lbf (130 kN).
The P.6/1 was eventually chosen by the MoS for further development because it was regarded as the least risky and costly alternative. Beyond its test bed role for the RB.106 the P.6/1 was also seen as a potential basis for a supersonic strategic air-to-ground missile (similar to the massive Soviet AS-3 ‘Kangaroo’ cruise missile) and the starting point for an operational interceptor that would be less complex than the Lightning, but with a comparable if not improved performance but a better range.
In 1955 English Electric received a go ahead for two P.6/1 research aircraft prototypes. Despite a superficial similarity to the Lightning, the P.6/1’s internal structure was very different. The air duct, for instance, was bifurcated and led around on both sides of the cockpit tub and the front wheel well instead of below it. Further down, the duct ran below the wing main spar and directly fed the RB.106.
The rear fuselage was area-ruled, the main landing gear retracted, just like the Lightning’s, outwards into the wings, while the front wheel retracted backwards into a well that was placed further aft than on the Lightning. The upper fuselage behind the main wings spar carried fuel tanks, more fuel was carried in wing tanks.
Both research machines were ready in 1958 and immediately started with aerodynamic and material tests for the MoS, reaching top speeds of Mach 2.5 and altitudes of 60.000 ft. and more.
In parallel, work on the fighter version, now called “Levin”, had started. The airframe was basically the same as the P.6/1’s. Biggest visible changes were a wider air intake with a bigger central shock cone (primarily for a radar dish), a shorter afterburner section and an enlarged fin with area increased by 15% that had become necessary in order to compensate instability through the new nose layout and the potential carriage of external ordnance, esp. under the fuselage. This bigger fin was taken over to the Lightning F.3 that also initially suffered from longitudal instability due to the new Red Top missiles.
The Levin carried armament and avionics similar to the Lightning, including the Ferranti-developed AI.23 monopulse radar. The aircraft was to be fully integrated into a new automatic intercept system developed by Ferranti, Elliot, and BAC. It would have turned the fighters into something like a "manned missile" and greatly simplified intercepts.
Anyway, the Levin’s weapon arrangement was slightly different from the Lightning: the Levin’s armament comprised theoretically a mix of up to four 30mm Aden cannons and/or up to four of the new Red Top AAMs, or alternatively the older Firestreak. The guns were mounted in the upper nose flanks (similar to the early Lightning arrangement, but set further back), right under the cockpit hatch, while a pair of AAMs was carried on wing tip launch rails. Two more AAMs could be carried on pylons under the lower front fuselage, similar to the Lightning’s standard configuration, even though there was no interchangeable module. Since this four-missile arrangement would not allow any cannon to be carried anymore and caused excessive drag, the typical payload was limited to two Aden cannons and the single pair of wing-tip missiles.
Despite its proven Lightning ancestry, the development of the Levin went through various troubles. While the RB.106 worked fine in the research P.6/1, it took until 1962 that a fully reliable variant for the interceptor could be cleared for service. Meanwhile the Lightning had already evolved into the F.3 variant and political discussions circled around the end of manned military aircraft. To make matters even worse, the RAF refused to buy the completely automatic intercept system, despite the fact that it had been fully engineered at a cost of 1.4 million pounds and trialed in one of the P.1Bs.
Eventually, the Levin F.1 finally entered service in 1964, together with the Lightning F.3. While the Lightning was rather seen as a point defense interceptor, due to the type’s limited range: If a Lightning F.3 missed its target on its first pass, it almost never had enough fuel to make a second attempt without topping off from a tanker, which would give an intruder plenty of time to get to its target and then depart… The Lightning’s flight endurance was less than 2 hours (in the F.2A, other variants even less), and it was hoped that the Levin had more potential through a longer range. Anyway, in service, the Levin’s range in clean configuration was only about 8% better than the Lightning’s. The Levin F.1’s flight endurance was about 2 ½ hours – an improvement, but not as substantial as expected.
In order to improve the range on both fighters, English Electric developed a new, stiffened wing for the carriage of a pair of jettisonable overwing ferry tanks with a capacity of 1,182 liters (312 US gallons / 260 Imperial gallons, so-called “Overburgers”). The new wing also featured a kinked leading edge, providing better low-speed handling. From mid 1965 onwards, all Levins were directly produced in this F.2 standard, and during regular overhauls the simpler F.1 machines were successively updated. The Lightning introduced the kinked wing with the F.3A variant and it was later introduced with the F.2A and F.6A variants.
Levin production comprised 21 original F.1 airframes, plus 34 F.2 fighters, and production was stopped in 1967. A trainer version was not produced, the Lightning trainers were deemed sufficient for conversion since the Levin and the Lightning shared similar handling characteristics.
The Levin served only with RAF 29 and 65 Squadron, the latter re-instated in 1970 as a dedicated fighter squadron. When in November 1984 the Tornado squadrons began to form, the Levin was gradually phased out and replaced until April 1987 by the Tornado F.3.
General characteristics:
Crew: 1
Length w/o pitot: 51 ft 5 in (15,70 m), 55 ft 8 in (16.99 m) overall
Wingspan incl. wingtip launch rails: 34 ft 9 in (10.54 m)
Height: 19 ft 7 in (5.97 m)
Wing area: 474.5 ft² (44.08 m²)
Empty weight: 8937 kg (lb)
Loaded weight: 13,570 kg (29,915)
Max. takeoff weight: 15,210 kg (33,530 lb)
Powerplant:
1× Rolls-Royce RB.106-10S afterburning turbojet,
rated at 20,000 lbf (89 kN) dry and 26,000 lbf (116 kN) with afterburning
Performance:
Maximum speed:
- 1,150 km/h (620 kn, 715 mph, Mach 0.94) at sea level
- 2,230 km/h (1.202 kn, 1,386 mph, Mach 2.1;), clean with 2× Red Top AAMs at high altitude
- Mach 2.4 absolute top speed in clean configuration at 50.000 ft.
Range: 1,650 km (890 nmi, 1,025 mi) on internal fuel
Combat radius: 500 km (312 mi); clean, with a pair of wing tip Red Top AAMs
Ferry range: 1,270 mi (1.100 NM/ 2.040 km) with overwing tanks
Service ceiling: 16,760 m (55,000 ft)
Rate of climb: 136.7 m/s (27,000 ft/min)
Wing loading: 76 lb/ft² (370 kg/m²)
Thrust/weight: 0.78
Takeoff roll: 950 m (3,120 ft)
Landing roll: 700 m (2,300 ft)
Armament:
2× 30 mm (1.18 in) ADEN cannons with 120 RPG in the upper front fuselage
2× wing tip hardpoints for mounting air-to-air missiles (2 Red Top of Firestreak AAMs)
2× overwing pylon stations for 260 gal ferry tanks
Optional, but rarely used: 2× hardpoints under the front fuselage for mounting air-to-air missiles
(2 Red Top of Firestreak AAMs)
The kit and its assembly:
Another contribution to the Cold War GB at whatifmodelers.com, and the realization of a project I had on the agenda for long. The EE P.6/1 was a real project for a Mach 2+ research aircraft, as described above, but it never went off the drawing board. Its engine, the RB.106, also never saw the light of day, even though its later career as the Canadian Orenda Iroquois for the stillborn CF-105.
Building this aircraft as a model appears simple, because it’s a classic Lightning (actually a F.1 with the un-kinked wing and the small fin), just with a single engine and a rather tubular fuselage. But creating this is not easy at all…
I did not want to replicate the original P.6/1, but rather a service aircraft based on the research aircraft. Therefore I used parts from a Lightning F.6 (a vintage NOVO/Frog kit). For the fuselage I settled for a Su-17, from a MasterCraft kit. The kit’s selling point was its small price tag and the fuselage construction: the VG mechanism is hidden under a separate spine piece, and I wanted to transplant the Lightning’s spine and cockpit frame, so I thought that this would make things easier.
Nope.
Putting the parts from the VERY different kits/aircraft together was a major surgery feat, with several multiple PSR sessions on the fuselage, the air intake section (opened and fitted with both an internal splitter and a bulkhead to the cockpit section), the wings, the stabilizers, the fin… This model deserves the title “kitbash” like no other, because no major sections had ever been intended to be glued together, and in the intended position!
The landing gear was more or less taken OOB, but the main struts had to be elongated by 2mm – somehow the model turned out to be a low-riding tail sitter! The cockpit interior was improvised, too, consisting of a Su-17 cockpit tub, a scratched dashboard and a Martin Baker ejection seat from an Italeri Bae Hawk trainer.
Since most of the fuselage surface consists of various materials (styrene and two kinds of putty), I did not dare to engrave panel lines – after all the PSR work almost any surface detail was gone. I rather went for a graphic solution (see below). Some antennae and air scoops were added, though.
The overwing tanks come OOB from the NOVO kit, as well as the Red Top missiles, which ended up on improvised wing tip launch rails, based on design sketches for Lightning derivatives with this layout.
Colors and markings:
There are several “classic” RAF options, but I settled for a low-viz Eighties livery taken from BAC Lightnings. There’s a surprising variety of styles, and my version is a mix of several real world aircraft.
I settled for Dark Sea Grey upper surfaces (Modelmaster Authentic) with a high waterline, a fuselage completely in Medium Sea Grey (Humbrol 165 – had to be applied twice because the first tin I used was obviously old and the paint ended up in a tone not unlike PRU Blue!) and Light aircraft Grey underwing surfaces (Humbrol 166). The leading edges under the wings are Dark Sea Grey, too.
The cockpit interior was painted in dark grey (Humbrol 32 with some dry-brushing), while the landing gear is Aluminum (Humbrol 56).
Once the basic painting was done I had to deal with the missing panel lines on the fuselage and those raised lines that were sanded away during the building process. I decided to simulate these with a soft pencil, after the whole kit was buffed with a soft cotton cloth and some grinded graphite. This way, the remaining raised panel lines were emphasized, and from these the rest was drawn up. A ruler and masking tape were used as guidance for straight lines, and this worked better than expected, with good results.
As a next step, the newly created panels were highlighted with dry-brushed lighter tones of the basic paints (FS 36492 and WWII Italian Blue Grey from Modelmaster, and Humbrol 126), more for a dramatic than a weathered effect. The gun ports and the exhaust section were painted with Modelmaster Metallizer (Titanium and Magnesium).
The decals come from several Xtradecal aftermarket sheets, including a dedicated Lightning stencils sheet, another Lightning sheet with various squadron markings and a sheet for RAF Tornado ADVs.
The code number “XS970” was earmarked to a TSR.2, AFAIK, but since it was never used on a service aircraft it would be a good option for the Levin.
The kit received a coat of matt acrylic varnish from the rattle can – jn this case the finish was intended to bear a slight shine.
This was a project with LOTS of effort, but you hardly recognize it – it’s a single engine Lightning, so what? But welding the Lightning and Su-17 parts together for something that comes close to the P.6/1 necessitated LOTS of body work and improvisation, carving it from wood would probably have been the next complicated option. Except for the surprisingly long tail I am very happy with the result, despite the model’s shaggy origins, and the low-viz livery suits the sleek aircraft IMHO very well.