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c/n 0093497942/74-06. At Krasnoyarsk-Yemelyanovo Airport, Russia. Later to Krasair, Remex and then used by Saturn as an engine testbed. Withdrawn from use at Zhukovski by 2007.

 

C.P.X624 Leonardo Velivoli Aermacchi M-345 HET High Efficiency Trainer at Venegono (VA) QVN LILN Leonardo's facility.

 

(Almos.C.)

After being fire damaged, DW411 was chosen for extensive trials, being absent in Ireland for a considerable time. It now features a Mercedes engine, which Wright fitted as part of the Streetdeck development. Now back in service, Enfield often allocate it to the 307, something they won't be able to do much longer with the route lost to Metroline. The bus is seen in Enfield after I alighted. It seemed fit for purpose while not very exciting, though sounded a bit better than a B9. 7/9/15.

Some background:

The VF-1 was developed by Stonewell/Bellcom/Shinnakasu for the U.N. Spacy by using alien Overtechnology obtained from the SDF-1 Macross alien spaceship. Its production was preceded by an aerodynamic proving version of its airframe, the VF-X. Unlike all later VF vehicles, the VF-X (sometimes referred to as VF-X1) was strictly a conventional/non-transformable jet aircraft, even though it incorporated many structural components and several key technologies that were vital for the transformable VF-1’s successful development that ran in parallel. Therefore, the VF-X was never intended as an air superiority fighter, but rather a flight-capable analogue test bed and proof of concept for the VF-1’s basic layout and major components. In this role, however, the VF-X made vital contributions to systems’ development that were later incorporated into the VF-1’s serial production and sped the program up considerably.

 

VF-X production started in early 2006, with four airframes built. The flight tests began in February 2007. The first prototype (“01”) was piloted and evaluated by ace pilot Roy Fokker, in order to explore the aircraft’s flight envelope, general handling and for external stores carriage tests. The three other VF-Xs successively joined the test program, each with a different focus. “02” was primarily tasked with the flight control and pilot interface program, “03” was allocated to the engine, vectoring thrust and steering systems development, and “04” was primarily involved in structural and fatigue tests.

 

In November 2007, the successful VF-X tests and the flights of the VF-X-1 (the first fully transformable VF-1 prototype, which had been under construction in parallel to the VF-X program) led to formal adoption of the “Valkyrie” variable fighter by the United Nations Government.

The space-capable VF-1's combat debut was on February 7, 2009, during the Battle of South Ataria Island - the first battle of Space War I - and remained the mainstay fighter of the U.N. Spacy for the entire conflict.

 

Introduced in 2008, the VF-1 proved to be an extremely capable craft, successfully combating a variety of Zentraedi mecha, even in most sorties which saw UN Spacy forces significantly outnumbered. The versatility of the Valkyrie design enabled the variable fighter to act as both large-scale infantry and as air/space superiority fighter. The signature skills of U.N. Spacy ace pilot Maximilian Jenius exemplified the effectiveness of the variable systems as he near-constantly transformed the Valkyrie in battle to seize advantages of each mode as combat conditions changed from moment to moment.

 

The basic VF-1 was deployed in four sub-variants (designated A, D, J, and S) and its success was increased by continued development of various enhancements. These included the GBP-1S "Armored Valkyrie” external armor and infantry weapons pack, so-called FAST Packs for "Super Valkyries” for orbital use, and the additional RÖ-X2 heavy cannon pack weapon system for the VF-1S “Strike Valkyrie” with additional firepower.

 

After the end of Space War I, the VF-1 continued to be manufactured both in the Sol system and throughout the UNG space colonies. Although the VF-1 would eventually be replaced as the primary Variable Fighter of the U.N. Spacy by the more capable, but also much bigger, VF-4 Lightning III in 2020, a long service record and continued production after the war proved the lasting worth of the design.

 

The VF-1 was without doubt the most recognizable variable fighter of Space War I and was seen as a vibrant symbol of the U.N. Spacy even into the first year of the New Era 0001 in 2013. At the end of 2015 the final rollout of the VF-1 was celebrated at a special ceremony, commemorating this most famous of variable fighters. The VF-1 Valkryie was built from 2006 to 2013 with a total production of 5,459 VF-1 variable fighters with several variants (VF-1A = 5,093, VF-1D = 85, VF-1J = 49, VF-1S = 30, VF-1G = 12, VE-1 = 122, VT-1 = 68), and several upgrade programs were introduced.

The fighter remained active in many second line units and continued to show its worthiness years later, e. g. through Milia Jenius who would use her old VF-1 fighter in defense of the colonization fleet - 35 years after the type's service introduction.

  

General characteristics:

Accommodation: One pilot in a Marty & Beck Mk-7 zero/zero ejection seat

Length 14.23 meters

Wingspan 14.78 meters (at 20° minimum sweep)

Height 3.84 meters

Empty weight: 13.25 metric tons

Standard T-O mass: 18.5 metric tons

 

Power Plant:

2x Shinnakasu Heavy Industry/P&W/Roice FF-2001 thermonuclear reaction turbine engines, output 650 MW each, rated at 11,500 kg in standard or in overboost (225.63 kN x 2)

4 x Shinnakasu Heavy Industry NBS-1 high-thrust vernier thrusters (1 x counter reverse vernier thruster nozzle mounted on the side of each leg nacelle/air intake, 1 x wing thruster roll control system on each wingtip);

 

Performance:

Top speed: Mach 2.71 at 10,000 m; Mach 3.87 at 30,000+ m

Thrust-to-weight ratio: empty 3.47; standard T-O 2.49; maximum T-O 1.24

 

Armament:

None installed, but the VF-X had 4x underwing hard points for a wide variety of ordnance, plus a ventral hardpoint for a Howard GU-11 55 mm three-barrel Gatling gun pod with 200 RPG, fired at 1,200 rds/min or other stores like test instruments

  

The model and its assembly:

Another submission to the “Prototypes” group build at whatifmodelers.com in July 2020. Being a VF-1 fan (and have built maybe twenty o these simple Arii kits), adding a VF-X was, more or less, a must – even more so because I had a suitable Valkyrie Fighter kit at hand for the conversion. As a side note, I have actually built something quite similar from a VF-1D many years ago: a fictional, non-transformable advanced trainer, without knowing about the VF-X at all.

 

Thanks to the “Macross - Perfect Memory” source book, the differences between the transformable VF-1 and its early testbed were easy to identify:

- Fixed legs with faired ducts from the intakes on (thighs)

- Ankle recesses disappeared

- Less and slightly different panel lines on the back and on the nose

- ventral head unit deleted and a respective fairing installed instead

- Levelled underside (shoulder fairings of the folded arms were cut down)

- Leg attachment points on the nose deleted

- No small, circular vernier thrusters all around the hull

- Some new/different venting grills (created mostly with 0.5mm black decal stripes)

 

Beyond the changes, the VF-1A was basically built OOB. Thankfully, the VF-X already features the later VF-1’s vectored thrust nozzles/feet, so that no changes had to be made in this respect. A pilot figure was added to the cockpit for the beauty pics, and after the flight scenes had been shot, the canopy remained open on a swing arm for static display. For the same reason, the model was built with the landing gear extended.

 

As a test aircraft, the underwing pylons and their AMM-1 ordnance were left away and the attachment points hidden with putty. I also omitted the ventral gun pod and left the aircraft clean. However, for the flight scene pictures, I implanted an adapter for a display holder made from wire.

 

In order to emphasize the test vehicle character of the VF-X, I gave the model a scratched spin recovery parachute installation between the fins, using a real world F-22 testbed as benchmark. It consists of styrene profiles, quite a delicate construction. For the same reason I gave the VF-X a long sensor boom on the nose, which changes the Valkyrie’s look, too. Finally, some small blade antennae were added to the nose and to the spine behind the cockpit.

  

Painting and markings:

To be honest, I have no idea if there was only a single VF-X prototype in the Macross universe, or more. Just one appears in the TV series in episode #33, and lack of suitable information and my personal lack of Japanese language proficiency prevents any deeper research. However, this would not keep me from inventing a personal interpretation of the canonical VF-X, especially because I do not really like the original livery from the TV series: an overall light grey with some simple black trim and “TEST” written on the (fixed) legs. Yamato did an 1:60 scale toy of the VF-X, but it was/is just a VF-1 with a ventral fairing; they added some shading to the basic grey – but this does not make the aircraft more attractive, IMHO.

 

When I looked at the original conceptual drawing of the VF-X in the “Macross - Perfect Memory” source book, however, I was immediately reminded of the F-15 prototypes from the Seventies (and this program used a total of twelve machines!). These featured originally a light grey (FS 36375?) overall base, to which bright dayglo orange markings on wings, fins and fuselage were soon added – in a very similar pattern to the VF-X. I think the VF-X livery was actually inspired by this, the time frame matches well with the production of the Macross TV series, too, and that’s what I adapted for my model.

In order to come close to the F-15 prototype livery, I gave “my” VF-X an overall basic coat of RAL 7047 “Telegrau 4”, one of German Telekom’s corporate colors and a very pale grey that can easily be mistaken for white when you do not have a contrast reference.

 

The cockpit received a medium grey finish, the ejection seat became black with brown cushions; the pilot figure is a 1:100 seated passenger from an architecture supplies, painted like an early VF-1 pilot in a white/blue suit. The jet nozzles/feet were painted with Revell 91 (Iron) and later treated with grinded graphite for a more metallic finish. The landing gear became classic white (I used Revell 301, which is a very pure tone, as contrast to the RAL 7047 on the hull), the air intake ducts and the internal sections of the VG wings were painted with dark grey (Revell 77).

 

For some diversity I took inspiration from the Yamato VF-X toy and added slightly darker (Humbrol 166, RAF Light Aircraft Grey) areas to the hull and the legs. Next, the panel lines were emphasized through a thinned black ink wash, but I did no panel post shading so that the VF-X would not look too dirty or worn.

 

Onto this basis I applied the orange dayglo markings. On the wings and fins, these were painted – they were applied with spray paint from a rattle can, involving lots of masking. The leading edges on wings and fins were created with grey decal sheet material, too. At this stage, some surface details and more fake panel lines were added with a soft pencil.

The orange cheatline under the cockpit is a personal addition; I found that some more orange had to be added to the nose for visual balance, and I eventually went for the simple, trimmed stripe (TL Modellbau material) instead of trying to apply decal sheet material around the jagged air intakes (F-15 prototype style). The black “TEST”, “VFX” and “U.N. Spacy” markings were designed at the computer and printed on clear inkjet decal paper. Even though the “real” VF-X does not feature the UNS “kite” insignia, I decided to add them to the model. These come from the OOB sheet, which also provided most (slightly yellowed) stencils.

Finally, the model was sealed with a coat of matt acrylic varnish (Italeri).

  

A rather different VF-1 project (and it is – to my astonishment – #28 in my 1:100 VF-1 Fighter mode collection!!!), with more changes to the basic model kit than one might expect at first sight. VF-X and VF-1 differ considerably from each other, despite identical outlines! However, I like the outcome, and I think that going a different route from the canonical grey/black livery paid out, the bright orange markings really make this VF-X stand out, and it looks IMHO more like a testbed than the “real” aircraft from the TV series.

Not really but it looks good. Its been done with a Nokia mirror app. Its x2 Eurofighter P2E jets mirrored together.

 

P2E HISTORY

 

BAE Systems is to begin flight trials of the Phase 2 Enhancements (P2E) package for the Eurofighter Typhoon in the coming weeks, Aug 2015

 

Speaking at the company's Warton facility, Andy Flynn, head of Capability Delivery for the United Kingdom and the NATO Eurofighter and Tornado Management Agency (NETMA), said that work to upgrade Instrumented Production Aircraft (IPA) 6 to the P2E standard is under way at the site, ahead of the commencement of flight trials in August.

 

"IPA6 is being upgraded to P2E right now. We expect to do engine ground runs next week, to be followed shortly after by approximately 150 flight trials of the configuration [across the international test fleet]. These will run through to the end of the year," he said.

 

The P2E is the latest in a number of capability enhancements that are being rolled out for the international Typhoon fleet. The earlier P1E(A) and P1E(B) upgrades laid the foundations for the ongoing development work, and afforded the jet a 'swing-role' air-to-air and air-to-surface capability. With P1E now in service with the operators (in the United Kingdom it was introduced under the Interim Force 2015 capability effort), BAE Systems is now under contract to deliver P2E.

 

P2E, which forms part of the UK's wider-Joint Expeditionary Force (JEF) 2018 capability set, comprises integration of the MBDA Meteor beyond visual range air-to-air missile (BVRAAM), and the MBDA Storm Shadow cruise missile. This phase also includes additional cockpit interface enhancements. "P2E will give the Typhoon the long stick of Meteor and the deep strike of Storm Shadow," Flynn noted.

 

The single-seat IPA6 testbed will be joined in the P2E flight test campaign by a twin-seat Typhoon that BAE Systems has loaned back from the UK Ministry of Defence (MoD). This aircraft, British Trainer (BT)017, is currently undergoing its 500-hour servicing at Warton, but should be ready to join IPA6 as a P2E-configured jet before the end of 2015. Besides helping with the trials, BT017 will also be used for operational performance evaluations of the enhanced configuration.

 

As well as the two BAE Systems aircraft, other testbed platforms will be provided by the other Eurofighter consortium nations of Germany, Italy, and Spain also, with the Italians performing Storm Shadow firings in the United Kingdom later in the year.

 

According to Steve Kenchington, engineering manager of the Typhoon Development Fleet, the P2E flight test campaign will see the Meteor fired first, due to range availability and other factors, to be followed by Storm Shadow and general P2E development work. "We are now within weeks of firing a Meteor missile," he said, adding: "The firings already done on IPA1 in December [2014] were really just to test the missile itself, whereas these will be concerned with integrating it onto the latest standard Typhoon and to test the missile's interaction with the radar."

 

Assuming that the flight trials are successful, the P2E configuration should be ready for fielding before the end of 2017. While all the nations will upgrade their aircraft to P2E standard, the United Kindgom is leading the way in further enhancements, with BAE Systems also under contract to deliver the P3E upgrade by the end of 2018.

 

The key feature of P3E, which will deliver the Typhoon component of the UK's Future Force 2020 capability set, is the integration of the MBDA Dual-Mode Brimstone 2 air-to-surface missile with a precision effect against fast-moving targets. This Brimstone 2 capability, when combined with the already-delivered Raytheon Paveway IV precision-guided bomb, and the Meteor and Storm Shadow, will provide the Royal Air Force (RAF) with its Project Centurion configuration for the Typhoon. This configuration is set to be rolled out in 2018 to ensure that there is no capability gap when the Panavia Tornado GR.4 strike aircraft is retired from service in 2019.

 

The United Kingdom is currently the only partner nation that is committed to P3E, and BAE Systems has already begun work on developing P4E and even P5E. Although these enhancements are still conceptual, they can loosely be defined by the integration of advanced sensors, including the Euroradar Captor electronically scanned (E-Scan) radar; and advanced weapon systems, such as the MBDA Selective Precision Effects At Range (SPEAR) Capability 3 (Cap 3), and the delivery of an Anti-Fast Inshore Attack Craft (FIAC) capability with the Brimstone 2.

 

The active electronically scanned array (AESA) E-Scan radar is currently in its Extended Assessment Phase (EAP), with an integration contract having been signed in late 2014. BAE Systems is to shortly fit a developmental but fully functioning E-Scan radar into testbed aircraft IPA5, with the aim of commencing trials before the end of 2015.

 

While P1E to P3E have been contracted, and P4E and P5E are still being defined, there are a number of other developmental projects under way by BAE Systems and the wider Eurofighter consortium that are all geared at enhancing the Typhoon's capabilities. These include the BAE Systems Striker II next-generation helmet, conformal fuel tanks, the Smart Dispensing System for countermeasures, the Common Weapon Launcher, and others. While not currently under contract to any of the operating nations, any or all of these could be offered for future capability drops at the customer's request.

   

Arriva London Ltd.:

 

DW411 was retrofitted with a new driveline, as a testbed for what would become the Wrightbus StreetDeck. The original 6-cyl Cummins ISBe engine was replaced with the Mercedes-Benz (Daimler) OM934. The vehicle caught fire shortly after arrival to the London fleet in 2011, so instead of being written off, she was given a new lease of life, and a slightly different identity!

 

VDLbus DB300 (Daimler) /

Wrightbus Gemini 2DL (10.5m)

H41/24D - 2011

 

Clapton Common, Stamford Hill (A107)

 

Saturday 1st August 2015

Some background:

The VF-1 was developed by Stonewell/Bellcom/Shinnakasu for the U.N. Spacy by using alien Overtechnology obtained from the SDF-1 Macross alien spaceship. Its production was preceded by an aerodynamic proving version of its airframe, the VF-X. Unlike all later VF vehicles, the VF-X (sometimes referred to as VF-X1) was strictly a conventional/non-transformable jet aircraft, even though it incorporated many structural components and several key technologies that were vital for the transformable VF-1’s successful development that ran in parallel. Therefore, the VF-X was never intended as an air superiority fighter, but rather a flight-capable analogue test bed and proof of concept for the VF-1’s basic layout and major components. In this role, however, the VF-X made vital contributions to systems’ development that were later incorporated into the VF-1’s serial production and sped the program up considerably.

 

VF-X production started in early 2006, with four airframes built. The flight tests began in February 2007. The first prototype (“01”) was piloted and evaluated by ace pilot Roy Fokker, in order to explore the aircraft’s flight envelope, general handling and for external stores carriage tests. The three other VF-Xs successively joined the test program, each with a different focus. “02” was primarily tasked with the flight control and pilot interface program, “03” was allocated to the engine, vectoring thrust and steering systems development, and “04” was primarily involved in structural and fatigue tests.

 

In November 2007, the successful VF-X tests and the flights of the VF-X-1 (the first fully transformable VF-1 prototype, which had been under construction in parallel to the VF-X program) led to formal adoption of the “Valkyrie” variable fighter by the United Nations Government.

The space-capable VF-1's combat debut was on February 7, 2009, during the Battle of South Ataria Island - the first battle of Space War I - and remained the mainstay fighter of the U.N. Spacy for the entire conflict.

 

Introduced in 2008, the VF-1 proved to be an extremely capable craft, successfully combating a variety of Zentraedi mecha, even in most sorties which saw UN Spacy forces significantly outnumbered. The versatility of the Valkyrie design enabled the variable fighter to act as both large-scale infantry and as air/space superiority fighter. The signature skills of U.N. Spacy ace pilot Maximilian Jenius exemplified the effectiveness of the variable systems as he near-constantly transformed the Valkyrie in battle to seize advantages of each mode as combat conditions changed from moment to moment.

 

The basic VF-1 was deployed in four sub-variants (designated A, D, J, and S) and its success was increased by continued development of various enhancements. These included the GBP-1S "Armored Valkyrie” external armor and infantry weapons pack, so-called FAST Packs for "Super Valkyries” for orbital use, and the additional RÖ-X2 heavy cannon pack weapon system for the VF-1S “Strike Valkyrie” with additional firepower.

 

After the end of Space War I, the VF-1 continued to be manufactured both in the Sol system and throughout the UNG space colonies. Although the VF-1 would eventually be replaced as the primary Variable Fighter of the U.N. Spacy by the more capable, but also much bigger, VF-4 Lightning III in 2020, a long service record and continued production after the war proved the lasting worth of the design.

 

The VF-1 was without doubt the most recognizable variable fighter of Space War I and was seen as a vibrant symbol of the U.N. Spacy even into the first year of the New Era 0001 in 2013. At the end of 2015 the final rollout of the VF-1 was celebrated at a special ceremony, commemorating this most famous of variable fighters. The VF-1 Valkryie was built from 2006 to 2013 with a total production of 5,459 VF-1 variable fighters with several variants (VF-1A = 5,093, VF-1D = 85, VF-1J = 49, VF-1S = 30, VF-1G = 12, VE-1 = 122, VT-1 = 68), and several upgrade programs were introduced.

The fighter remained active in many second line units and continued to show its worthiness years later, e. g. through Milia Jenius who would use her old VF-1 fighter in defense of the colonization fleet - 35 years after the type's service introduction.

  

General characteristics:

Accommodation: One pilot in a Marty & Beck Mk-7 zero/zero ejection seat

Length 14.23 meters

Wingspan 14.78 meters (at 20° minimum sweep)

Height 3.84 meters

Empty weight: 13.25 metric tons

Standard T-O mass: 18.5 metric tons

 

Power Plant:

2x Shinnakasu Heavy Industry/P&W/Roice FF-2001 thermonuclear reaction turbine engines, output 650 MW each, rated at 11,500 kg in standard or in overboost (225.63 kN x 2)

4 x Shinnakasu Heavy Industry NBS-1 high-thrust vernier thrusters (1 x counter reverse vernier thruster nozzle mounted on the side of each leg nacelle/air intake, 1 x wing thruster roll control system on each wingtip);

 

Performance:

Top speed: Mach 2.71 at 10,000 m; Mach 3.87 at 30,000+ m

Thrust-to-weight ratio: empty 3.47; standard T-O 2.49; maximum T-O 1.24

 

Armament:

None installed, but the VF-X had 4x underwing hard points for a wide variety of ordnance, plus a ventral hardpoint for a Howard GU-11 55 mm three-barrel Gatling gun pod with 200 RPG, fired at 1,200 rds/min or other stores like test instruments

  

The model and its assembly:

Another submission to the “Prototypes” group build at whatifmodelers.com in July 2020. Being a VF-1 fan (and have built maybe twenty o these simple Arii kits), adding a VF-X was, more or less, a must – even more so because I had a suitable Valkyrie Fighter kit at hand for the conversion. As a side note, I have actually built something quite similar from a VF-1D many years ago: a fictional, non-transformable advanced trainer, without knowing about the VF-X at all.

 

Thanks to the “Macross - Perfect Memory” source book, the differences between the transformable VF-1 and its early testbed were easy to identify:

- Fixed legs with faired ducts from the intakes on (thighs)

- Ankle recesses disappeared

- Less and slightly different panel lines on the back and on the nose

- ventral head unit deleted and a respective fairing installed instead

- Levelled underside (shoulder fairings of the folded arms were cut down)

- Leg attachment points on the nose deleted

- No small, circular vernier thrusters all around the hull

- Some new/different venting grills (created mostly with 0.5mm black decal stripes)

 

Beyond the changes, the VF-1A was basically built OOB. Thankfully, the VF-X already features the later VF-1’s vectored thrust nozzles/feet, so that no changes had to be made in this respect. A pilot figure was added to the cockpit for the beauty pics, and after the flight scenes had been shot, the canopy remained open on a swing arm for static display. For the same reason, the model was built with the landing gear extended.

 

As a test aircraft, the underwing pylons and their AMM-1 ordnance were left away and the attachment points hidden with putty. I also omitted the ventral gun pod and left the aircraft clean. However, for the flight scene pictures, I implanted an adapter for a display holder made from wire.

 

In order to emphasize the test vehicle character of the VF-X, I gave the model a scratched spin recovery parachute installation between the fins, using a real world F-22 testbed as benchmark. It consists of styrene profiles, quite a delicate construction. For the same reason I gave the VF-X a long sensor boom on the nose, which changes the Valkyrie’s look, too. Finally, some small blade antennae were added to the nose and to the spine behind the cockpit.

  

Painting and markings:

To be honest, I have no idea if there was only a single VF-X prototype in the Macross universe, or more. Just one appears in the TV series in episode #33, and lack of suitable information and my personal lack of Japanese language proficiency prevents any deeper research. However, this would not keep me from inventing a personal interpretation of the canonical VF-X, especially because I do not really like the original livery from the TV series: an overall light grey with some simple black trim and “TEST” written on the (fixed) legs. Yamato did an 1:60 scale toy of the VF-X, but it was/is just a VF-1 with a ventral fairing; they added some shading to the basic grey – but this does not make the aircraft more attractive, IMHO.

 

When I looked at the original conceptual drawing of the VF-X in the “Macross - Perfect Memory” source book, however, I was immediately reminded of the F-15 prototypes from the Seventies (and this program used a total of twelve machines!). These featured originally a light grey (FS 36375?) overall base, to which bright dayglo orange markings on wings, fins and fuselage were soon added – in a very similar pattern to the VF-X. I think the VF-X livery was actually inspired by this, the time frame matches well with the production of the Macross TV series, too, and that’s what I adapted for my model.

In order to come close to the F-15 prototype livery, I gave “my” VF-X an overall basic coat of RAL 7047 “Telegrau 4”, one of German Telekom’s corporate colors and a very pale grey that can easily be mistaken for white when you do not have a contrast reference.

 

The cockpit received a medium grey finish, the ejection seat became black with brown cushions; the pilot figure is a 1:100 seated passenger from an architecture supplies, painted like an early VF-1 pilot in a white/blue suit. The jet nozzles/feet were painted with Revell 91 (Iron) and later treated with grinded graphite for a more metallic finish. The landing gear became classic white (I used Revell 301, which is a very pure tone, as contrast to the RAL 7047 on the hull), the air intake ducts and the internal sections of the VG wings were painted with dark grey (Revell 77).

 

For some diversity I took inspiration from the Yamato VF-X toy and added slightly darker (Humbrol 166, RAF Light Aircraft Grey) areas to the hull and the legs. Next, the panel lines were emphasized through a thinned black ink wash, but I did no panel post shading so that the VF-X would not look too dirty or worn.

 

Onto this basis I applied the orange dayglo markings. On the wings and fins, these were painted – they were applied with spray paint from a rattle can, involving lots of masking. The leading edges on wings and fins were created with grey decal sheet material, too. At this stage, some surface details and more fake panel lines were added with a soft pencil.

The orange cheatline under the cockpit is a personal addition; I found that some more orange had to be added to the nose for visual balance, and I eventually went for the simple, trimmed stripe (TL Modellbau material) instead of trying to apply decal sheet material around the jagged air intakes (F-15 prototype style). The black “TEST”, “VFX” and “U.N. Spacy” markings were designed at the computer and printed on clear inkjet decal paper. Even though the “real” VF-X does not feature the UNS “kite” insignia, I decided to add them to the model. These come from the OOB sheet, which also provided most (slightly yellowed) stencils.

Finally, the model was sealed with a coat of matt acrylic varnish (Italeri).

  

A rather different VF-1 project (and it is – to my astonishment – #28 in my 1:100 VF-1 Fighter mode collection!!!), with more changes to the basic model kit than one might expect at first sight. VF-X and VF-1 differ considerably from each other, despite identical outlines! However, I like the outcome, and I think that going a different route from the canonical grey/black livery paid out, the bright orange markings really make this VF-X stand out, and it looks IMHO more like a testbed than the “real” aircraft from the TV series.

The Rolls-Royce 747 testbed returns to Tucson International Airport following a mission, note the test engine on the inner pylon.

Some background:

The VF-1 was developed by Stonewell/Bellcom/Shinnakasu for the U.N. Spacy by using alien Overtechnology obtained from the SDF-1 Macross alien spaceship. Its production was preceded by an aerodynamic proving version of its airframe, the VF-X. Unlike all later VF vehicles, the VF-X (sometimes referred to as VF-X1) was strictly a conventional/non-transformable jet aircraft, even though it incorporated many structural components and several key technologies that were vital for the transformable VF-1’s successful development that ran in parallel. Therefore, the VF-X was never intended as an air superiority fighter, but rather a flight-capable analogue test bed and proof of concept for the VF-1’s basic layout and major components. In this role, however, the VF-X made vital contributions to systems’ development that were later incorporated into the VF-1’s serial production and sped the program up considerably.

 

VF-X production started in early 2006, with four airframes built. The flight tests began in February 2007. The first prototype (“01”) was piloted and evaluated by ace pilot Roy Fokker, in order to explore the aircraft’s flight envelope, general handling and for external stores carriage tests. The three other VF-Xs successively joined the test program, each with a different focus. “02” was primarily tasked with the flight control and pilot interface program, “03” was allocated to the engine, vectoring thrust and steering systems development, and “04” was primarily involved in structural and fatigue tests.

 

In November 2007, the successful VF-X tests and the flights of the VF-X-1 (the first fully transformable VF-1 prototype, which had been under construction in parallel to the VF-X program) led to formal adoption of the “Valkyrie” variable fighter by the United Nations Government.

The space-capable VF-1's combat debut was on February 7, 2009, during the Battle of South Ataria Island - the first battle of Space War I - and remained the mainstay fighter of the U.N. Spacy for the entire conflict.

 

Introduced in 2008, the VF-1 proved to be an extremely capable craft, successfully combating a variety of Zentraedi mecha, even in most sorties which saw UN Spacy forces significantly outnumbered. The versatility of the Valkyrie design enabled the variable fighter to act as both large-scale infantry and as air/space superiority fighter. The signature skills of U.N. Spacy ace pilot Maximilian Jenius exemplified the effectiveness of the variable systems as he near-constantly transformed the Valkyrie in battle to seize advantages of each mode as combat conditions changed from moment to moment.

 

The basic VF-1 was deployed in four sub-variants (designated A, D, J, and S) and its success was increased by continued development of various enhancements. These included the GBP-1S "Armored Valkyrie” external armor and infantry weapons pack, so-called FAST Packs for "Super Valkyries” for orbital use, and the additional RÖ-X2 heavy cannon pack weapon system for the VF-1S “Strike Valkyrie” with additional firepower.

 

After the end of Space War I, the VF-1 continued to be manufactured both in the Sol system and throughout the UNG space colonies. Although the VF-1 would eventually be replaced as the primary Variable Fighter of the U.N. Spacy by the more capable, but also much bigger, VF-4 Lightning III in 2020, a long service record and continued production after the war proved the lasting worth of the design.

 

The VF-1 was without doubt the most recognizable variable fighter of Space War I and was seen as a vibrant symbol of the U.N. Spacy even into the first year of the New Era 0001 in 2013. At the end of 2015 the final rollout of the VF-1 was celebrated at a special ceremony, commemorating this most famous of variable fighters. The VF-1 Valkryie was built from 2006 to 2013 with a total production of 5,459 VF-1 variable fighters with several variants (VF-1A = 5,093, VF-1D = 85, VF-1J = 49, VF-1S = 30, VF-1G = 12, VE-1 = 122, VT-1 = 68), and several upgrade programs were introduced.

The fighter remained active in many second line units and continued to show its worthiness years later, e. g. through Milia Jenius who would use her old VF-1 fighter in defense of the colonization fleet - 35 years after the type's service introduction.

  

General characteristics:

Accommodation: One pilot in a Marty & Beck Mk-7 zero/zero ejection seat

Length 14.23 meters

Wingspan 14.78 meters (at 20° minimum sweep)

Height 3.84 meters

Empty weight: 13.25 metric tons

Standard T-O mass: 18.5 metric tons

 

Power Plant:

2x Shinnakasu Heavy Industry/P&W/Roice FF-2001 thermonuclear reaction turbine engines, output 650 MW each, rated at 11,500 kg in standard or in overboost (225.63 kN x 2)

4 x Shinnakasu Heavy Industry NBS-1 high-thrust vernier thrusters (1 x counter reverse vernier thruster nozzle mounted on the side of each leg nacelle/air intake, 1 x wing thruster roll control system on each wingtip);

 

Performance:

Top speed: Mach 2.71 at 10,000 m; Mach 3.87 at 30,000+ m

Thrust-to-weight ratio: empty 3.47; standard T-O 2.49; maximum T-O 1.24

 

Armament:

None installed, but the VF-X had 4x underwing hard points for a wide variety of ordnance, plus a ventral hardpoint for a Howard GU-11 55 mm three-barrel Gatling gun pod with 200 RPG, fired at 1,200 rds/min or other stores like test instruments

  

The model and its assembly:

Another submission to the “Prototypes” group build at whatifmodelers.com in July 2020. Being a VF-1 fan (and have built maybe twenty o these simple Arii kits), adding a VF-X was, more or less, a must – even more so because I had a suitable Valkyrie Fighter kit at hand for the conversion. As a side note, I have actually built something quite similar from a VF-1D many years ago: a fictional, non-transformable advanced trainer, without knowing about the VF-X at all.

 

Thanks to the “Macross - Perfect Memory” source book, the differences between the transformable VF-1 and its early testbed were easy to identify:

- Fixed legs with faired ducts from the intakes on (thighs)

- Ankle recesses disappeared

- Less and slightly different panel lines on the back and on the nose

- ventral head unit deleted and a respective fairing installed instead

- Levelled underside (shoulder fairings of the folded arms were cut down)

- Leg attachment points on the nose deleted

- No small, circular vernier thrusters all around the hull

- Some new/different venting grills (created mostly with 0.5mm black decal stripes)

 

Beyond the changes, the VF-1A was basically built OOB. Thankfully, the VF-X already features the later VF-1’s vectored thrust nozzles/feet, so that no changes had to be made in this respect. A pilot figure was added to the cockpit for the beauty pics, and after the flight scenes had been shot, the canopy remained open on a swing arm for static display. For the same reason, the model was built with the landing gear extended.

 

As a test aircraft, the underwing pylons and their AMM-1 ordnance were left away and the attachment points hidden with putty. I also omitted the ventral gun pod and left the aircraft clean. However, for the flight scene pictures, I implanted an adapter for a display holder made from wire.

 

In order to emphasize the test vehicle character of the VF-X, I gave the model a scratched spin recovery parachute installation between the fins, using a real world F-22 testbed as benchmark. It consists of styrene profiles, quite a delicate construction. For the same reason I gave the VF-X a long sensor boom on the nose, which changes the Valkyrie’s look, too. Finally, some small blade antennae were added to the nose and to the spine behind the cockpit.

  

Painting and markings:

To be honest, I have no idea if there was only a single VF-X prototype in the Macross universe, or more. Just one appears in the TV series in episode #33, and lack of suitable information and my personal lack of Japanese language proficiency prevents any deeper research. However, this would not keep me from inventing a personal interpretation of the canonical VF-X, especially because I do not really like the original livery from the TV series: an overall light grey with some simple black trim and “TEST” written on the (fixed) legs. Yamato did an 1:60 scale toy of the VF-X, but it was/is just a VF-1 with a ventral fairing; they added some shading to the basic grey – but this does not make the aircraft more attractive, IMHO.

 

When I looked at the original conceptual drawing of the VF-X in the “Macross - Perfect Memory” source book, however, I was immediately reminded of the F-15 prototypes from the Seventies (and this program used a total of twelve machines!). These featured originally a light grey (FS 36375?) overall base, to which bright dayglo orange markings on wings, fins and fuselage were soon added – in a very similar pattern to the VF-X. I think the VF-X livery was actually inspired by this, the time frame matches well with the production of the Macross TV series, too, and that’s what I adapted for my model.

In order to come close to the F-15 prototype livery, I gave “my” VF-X an overall basic coat of RAL 7047 “Telegrau 4”, one of German Telekom’s corporate colors and a very pale grey that can easily be mistaken for white when you do not have a contrast reference.

 

The cockpit received a medium grey finish, the ejection seat became black with brown cushions; the pilot figure is a 1:100 seated passenger from an architecture supplies, painted like an early VF-1 pilot in a white/blue suit. The jet nozzles/feet were painted with Revell 91 (Iron) and later treated with grinded graphite for a more metallic finish. The landing gear became classic white (I used Revell 301, which is a very pure tone, as contrast to the RAL 7047 on the hull), the air intake ducts and the internal sections of the VG wings were painted with dark grey (Revell 77).

 

For some diversity I took inspiration from the Yamato VF-X toy and added slightly darker (Humbrol 166, RAF Light Aircraft Grey) areas to the hull and the legs. Next, the panel lines were emphasized through a thinned black ink wash, but I did no panel post shading so that the VF-X would not look too dirty or worn.

 

Onto this basis I applied the orange dayglo markings. On the wings and fins, these were painted – they were applied with spray paint from a rattle can, involving lots of masking. The leading edges on wings and fins were created with grey decal sheet material, too. At this stage, some surface details and more fake panel lines were added with a soft pencil.

The orange cheatline under the cockpit is a personal addition; I found that some more orange had to be added to the nose for visual balance, and I eventually went for the simple, trimmed stripe (TL Modellbau material) instead of trying to apply decal sheet material around the jagged air intakes (F-15 prototype style). The black “TEST”, “VFX” and “U.N. Spacy” markings were designed at the computer and printed on clear inkjet decal paper. Even though the “real” VF-X does not feature the UNS “kite” insignia, I decided to add them to the model. These come from the OOB sheet, which also provided most (slightly yellowed) stencils.

Finally, the model was sealed with a coat of matt acrylic varnish (Italeri).

  

A rather different VF-1 project (and it is – to my astonishment – #28 in my 1:100 VF-1 Fighter mode collection!!!), with more changes to the basic model kit than one might expect at first sight. VF-X and VF-1 differ considerably from each other, despite identical outlines! However, I like the outcome, and I think that going a different route from the canonical grey/black livery paid out, the bright orange markings really make this VF-X stand out, and it looks IMHO more like a testbed than the “real” aircraft from the TV series.

English Electric Type 5 (Class 55) bodied Type 4 Co-Co diesel locomotive DP2 (Diesel Prototype 2) stabled alongside the signal box circa 1965 at King's Cross Station in London (UK).

 

DP2 was involved in a serious incident on July 31st 1967 at Thirsk in North Yorkshire when it collided with some cement wagons which had derailed. Seven passengers where killed.

 

DP2 was built by English Electric at the Vulcan Foundry Newton le Willows in 1962 as a testbed for the power units in the then forthcoming Class 50 locomotive and was cut up after the Thirsk incident in 1968.

 

Photograph courtesy, copyright and taken by my occasional photostream contributor Mr Philip Alexander is posted to my flickr photostream with very kind permission.

Some background:

The VF-1 was developed by Stonewell/Bellcom/Shinnakasu for the U.N. Spacy by using alien Overtechnology obtained from the SDF-1 Macross alien spaceship. Its production was preceded by an aerodynamic proving version of its airframe, the VF-X. Unlike all later VF vehicles, the VF-X (sometimes referred to as VF-X1) was strictly a conventional/non-transformable jet aircraft, even though it incorporated many structural components and several key technologies that were vital for the transformable VF-1’s successful development that ran in parallel. Therefore, the VF-X was never intended as an air superiority fighter, but rather a flight-capable analogue test bed and proof of concept for the VF-1’s basic layout and major components. In this role, however, the VF-X made vital contributions to systems’ development that were later incorporated into the VF-1’s serial production and sped the program up considerably.

 

VF-X production started in early 2006, with four airframes built. The flight tests began in February 2007. The first prototype (“01”) was piloted and evaluated by ace pilot Roy Fokker, in order to explore the aircraft’s flight envelope, general handling and for external stores carriage tests. The three other VF-Xs successively joined the test program, each with a different focus. “02” was primarily tasked with the flight control and pilot interface program, “03” was allocated to the engine, vectoring thrust and steering systems development, and “04” was primarily involved in structural and fatigue tests.

 

In November 2007, the successful VF-X tests and the flights of the VF-X-1 (the first fully transformable VF-1 prototype, which had been under construction in parallel to the VF-X program) led to formal adoption of the “Valkyrie” variable fighter by the United Nations Government.

The space-capable VF-1's combat debut was on February 7, 2009, during the Battle of South Ataria Island - the first battle of Space War I - and remained the mainstay fighter of the U.N. Spacy for the entire conflict.

 

Introduced in 2008, the VF-1 proved to be an extremely capable craft, successfully combating a variety of Zentraedi mecha, even in most sorties which saw UN Spacy forces significantly outnumbered. The versatility of the Valkyrie design enabled the variable fighter to act as both large-scale infantry and as air/space superiority fighter. The signature skills of U.N. Spacy ace pilot Maximilian Jenius exemplified the effectiveness of the variable systems as he near-constantly transformed the Valkyrie in battle to seize advantages of each mode as combat conditions changed from moment to moment.

 

The basic VF-1 was deployed in four sub-variants (designated A, D, J, and S) and its success was increased by continued development of various enhancements. These included the GBP-1S "Armored Valkyrie” external armor and infantry weapons pack, so-called FAST Packs for "Super Valkyries” for orbital use, and the additional RÖ-X2 heavy cannon pack weapon system for the VF-1S “Strike Valkyrie” with additional firepower.

 

After the end of Space War I, the VF-1 continued to be manufactured both in the Sol system and throughout the UNG space colonies. Although the VF-1 would eventually be replaced as the primary Variable Fighter of the U.N. Spacy by the more capable, but also much bigger, VF-4 Lightning III in 2020, a long service record and continued production after the war proved the lasting worth of the design.

 

The VF-1 was without doubt the most recognizable variable fighter of Space War I and was seen as a vibrant symbol of the U.N. Spacy even into the first year of the New Era 0001 in 2013. At the end of 2015 the final rollout of the VF-1 was celebrated at a special ceremony, commemorating this most famous of variable fighters. The VF-1 Valkryie was built from 2006 to 2013 with a total production of 5,459 VF-1 variable fighters with several variants (VF-1A = 5,093, VF-1D = 85, VF-1J = 49, VF-1S = 30, VF-1G = 12, VE-1 = 122, VT-1 = 68), and several upgrade programs were introduced.

The fighter remained active in many second line units and continued to show its worthiness years later, e. g. through Milia Jenius who would use her old VF-1 fighter in defense of the colonization fleet - 35 years after the type's service introduction.

  

General characteristics:

Accommodation: One pilot in a Marty & Beck Mk-7 zero/zero ejection seat

Length 14.23 meters

Wingspan 14.78 meters (at 20° minimum sweep)

Height 3.84 meters

Empty weight: 13.25 metric tons

Standard T-O mass: 18.5 metric tons

 

Power Plant:

2x Shinnakasu Heavy Industry/P&W/Roice FF-2001 thermonuclear reaction turbine engines, output 650 MW each, rated at 11,500 kg in standard or in overboost (225.63 kN x 2)

4 x Shinnakasu Heavy Industry NBS-1 high-thrust vernier thrusters (1 x counter reverse vernier thruster nozzle mounted on the side of each leg nacelle/air intake, 1 x wing thruster roll control system on each wingtip);

 

Performance:

Top speed: Mach 2.71 at 10,000 m; Mach 3.87 at 30,000+ m

Thrust-to-weight ratio: empty 3.47; standard T-O 2.49; maximum T-O 1.24

 

Armament:

None installed, but the VF-X had 4x underwing hard points for a wide variety of ordnance, plus a ventral hardpoint for a Howard GU-11 55 mm three-barrel Gatling gun pod with 200 RPG, fired at 1,200 rds/min or other stores like test instruments

  

The model and its assembly:

Another submission to the “Prototypes” group build at whatifmodelers.com in July 2020. Being a VF-1 fan (and have built maybe twenty o these simple Arii kits), adding a VF-X was, more or less, a must – even more so because I had a suitable Valkyrie Fighter kit at hand for the conversion. As a side note, I have actually built something quite similar from a VF-1D many years ago: a fictional, non-transformable advanced trainer, without knowing about the VF-X at all.

 

Thanks to the “Macross - Perfect Memory” source book, the differences between the transformable VF-1 and its early testbed were easy to identify:

- Fixed legs with faired ducts from the intakes on (thighs)

- Ankle recesses disappeared

- Less and slightly different panel lines on the back and on the nose

- ventral head unit deleted and a respective fairing installed instead

- Levelled underside (shoulder fairings of the folded arms were cut down)

- Leg attachment points on the nose deleted

- No small, circular vernier thrusters all around the hull

- Some new/different venting grills (created mostly with 0.5mm black decal stripes)

 

Beyond the changes, the VF-1A was basically built OOB. Thankfully, the VF-X already features the later VF-1’s vectored thrust nozzles/feet, so that no changes had to be made in this respect. A pilot figure was added to the cockpit for the beauty pics, and after the flight scenes had been shot, the canopy remained open on a swing arm for static display. For the same reason, the model was built with the landing gear extended.

 

As a test aircraft, the underwing pylons and their AMM-1 ordnance were left away and the attachment points hidden with putty. I also omitted the ventral gun pod and left the aircraft clean. However, for the flight scene pictures, I implanted an adapter for a display holder made from wire.

 

In order to emphasize the test vehicle character of the VF-X, I gave the model a scratched spin recovery parachute installation between the fins, using a real world F-22 testbed as benchmark. It consists of styrene profiles, quite a delicate construction. For the same reason I gave the VF-X a long sensor boom on the nose, which changes the Valkyrie’s look, too. Finally, some small blade antennae were added to the nose and to the spine behind the cockpit.

  

Painting and markings:

To be honest, I have no idea if there was only a single VF-X prototype in the Macross universe, or more. Just one appears in the TV series in episode #33, and lack of suitable information and my personal lack of Japanese language proficiency prevents any deeper research. However, this would not keep me from inventing a personal interpretation of the canonical VF-X, especially because I do not really like the original livery from the TV series: an overall light grey with some simple black trim and “TEST” written on the (fixed) legs. Yamato did an 1:60 scale toy of the VF-X, but it was/is just a VF-1 with a ventral fairing; they added some shading to the basic grey – but this does not make the aircraft more attractive, IMHO.

 

When I looked at the original conceptual drawing of the VF-X in the “Macross - Perfect Memory” source book, however, I was immediately reminded of the F-15 prototypes from the Seventies (and this program used a total of twelve machines!). These featured originally a light grey (FS 36375?) overall base, to which bright dayglo orange markings on wings, fins and fuselage were soon added – in a very similar pattern to the VF-X. I think the VF-X livery was actually inspired by this, the time frame matches well with the production of the Macross TV series, too, and that’s what I adapted for my model.

In order to come close to the F-15 prototype livery, I gave “my” VF-X an overall basic coat of RAL 7047 “Telegrau 4”, one of German Telekom’s corporate colors and a very pale grey that can easily be mistaken for white when you do not have a contrast reference.

 

The cockpit received a medium grey finish, the ejection seat became black with brown cushions; the pilot figure is a 1:100 seated passenger from an architecture supplies, painted like an early VF-1 pilot in a white/blue suit. The jet nozzles/feet were painted with Revell 91 (Iron) and later treated with grinded graphite for a more metallic finish. The landing gear became classic white (I used Revell 301, which is a very pure tone, as contrast to the RAL 7047 on the hull), the air intake ducts and the internal sections of the VG wings were painted with dark grey (Revell 77).

 

For some diversity I took inspiration from the Yamato VF-X toy and added slightly darker (Humbrol 166, RAF Light Aircraft Grey) areas to the hull and the legs. Next, the panel lines were emphasized through a thinned black ink wash, but I did no panel post shading so that the VF-X would not look too dirty or worn.

 

Onto this basis I applied the orange dayglo markings. On the wings and fins, these were painted – they were applied with spray paint from a rattle can, involving lots of masking. The leading edges on wings and fins were created with grey decal sheet material, too. At this stage, some surface details and more fake panel lines were added with a soft pencil.

The orange cheatline under the cockpit is a personal addition; I found that some more orange had to be added to the nose for visual balance, and I eventually went for the simple, trimmed stripe (TL Modellbau material) instead of trying to apply decal sheet material around the jagged air intakes (F-15 prototype style). The black “TEST”, “VFX” and “U.N. Spacy” markings were designed at the computer and printed on clear inkjet decal paper. Even though the “real” VF-X does not feature the UNS “kite” insignia, I decided to add them to the model. These come from the OOB sheet, which also provided most (slightly yellowed) stencils.

Finally, the model was sealed with a coat of matt acrylic varnish (Italeri).

  

A rather different VF-1 project (and it is – to my astonishment – #28 in my 1:100 VF-1 Fighter mode collection!!!), with more changes to the basic model kit than one might expect at first sight. VF-X and VF-1 differ considerably from each other, despite identical outlines! However, I like the outcome, and I think that going a different route from the canonical grey/black livery paid out, the bright orange markings really make this VF-X stand out, and it looks IMHO more like a testbed than the “real” aircraft from the TV series.

Operator: Airbus Industrie

Aircraft: Airbus A321-251neo

Registration: D-AVXB

C/n: 6839

Time & Location: 01.10.2016, EFTU, Finland

Remarks: the 2nd A321neo built.

Boeing 747-267B

+++ 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 Korean People's Army Air and Anti-Air Force began as the "Korean Aviation Society" in 1945. It was organized along the lines of flying clubs in the Soviet Union. In 1946, the society became a military organization and became an aviation division of the Korean People's Army (KPA). It became a branch of the army in its own right in November 1948. The KPAF incorporated much of the original Soviet air tactics, as well as North Korean experience from the UN bombings during the Korean War.

 

North Korea’s first indigenous jet fighter aircraft, the Wonsan Aircraft Works 여-1 (known as “W-1” outside of the country), started its existence in China as the Shenyang J-3 (Jianjiji = fighter). The J-3 was a project to exploit the knowledge and hardware gained through the license production of the Soviet MiG-15UTI trainer, locally designated JJ-2 (Jianjiji Jiaolianji – fighter trainer), a study that was primarily intended to improve China’s aircraft industry and the country’s respective engineering know how after the Korean War. The Soviet VVS and PVO had been the primary users of the MiG-15 during the Korean war, but not the only ones; it was also used by the PLAAF and KPAF (known as the United Air Army).

The J-3 was designed during the Korean War between 1952 and 1953 and two prototypes were built with Soviet help and tested in 1953, but the aircraft came too late – and it was not regarded as a successor or even an alternative to the Soviet MiG-15, because it lacked modern features like swept wings. The J-3’s design drew more on American rather than British inspiration, having elected to use features such as a very thin (but almost straight) wing akin to the Lockheed P-80 Shooting Star and a basic configuration comparable to the North American F-86 Sabre. Due to its conceptual interceptor role, an emphasis had been placed on a fast rate of climb. Power came from a Klimov VK-1 centrifugal-flow turbojet, a derivative of the British Rolls-Royce Nene Mk.104B that also powered the MiG-15. Armament consisted of four 23 mm (0.906 in) Nudelman-Suranov NS-23 autocannon under the nose.

 

The J-3’s rate of progress on the project was such that, within 15 months of design work having formally started, the first prototype had been fully constructed. On 28 October 1953, the first J-3 fighter prototype conducted its first flight, even though it still lacked pressurization, armament, and other military equipment. Gradually, new hardware was integrated and tested, and a second aircraft joined the tests in January 1954. Flight tests followed quickly and showed that the J-3 was easy to fly and had exceptional performance and maneuverability for a straight-wing aircraft. Unfortunately, it soon became clear that the laminar flow section used for the original tail unit was totally unsuitable, with extremely severe buffeting setting in at 500 km/h (310 mph). The buffeting was so bad that the test pilots were thrown about in the cockpit, banging their head on the canopy, and the needles fell off all the flight instruments. Fortunately, accidents could be avoided, and the tailplane section was changed with much improved results.

The gun armament caused troubles, too. Firing all four NS-23 at once made the robust engine surge – a problem that did not occur on the MiG-15, but it only carried two of these weapons. A remedy was eventually found through the introduction of a slightly elongated nose that kept the air intake further away from the gun blast shock waves. The flight and test program lasted until 1955, and a total of five J-3 prototypes were built, but with no serious plan to put this aircraft into series production, even more so after China had been offered to produce the even more modern and capable Soviet MiG-17 fighter under license as the J-5. In the People's Republic of China (PRC), an initial MiG-17F was assembled from parts in 1956, with license production following in 1957 at Shenyang. The Chinese-built version was/is known as the Shenyang J-5 (for local use) or F-5 (for export). After this decision, the J-3 program was stopped, but the machines were retained in flightworthy condition as testbeds and chase planes by the PLAAF until the late Sixties

 

However, this was not the end of the J-3. After fighting had ended on 27 July 1953 when the Korean Armistice Agreement was signed, the Korean People's Army Air and Anti-Air Force (KPAAF) was keen to boost its capabilities and build a domestic aircraft industry, beyond the option to produce existing designs in license. Turning to its main sponsor China, North Korea was offered the plans for the J-3 and its tools, together with a supply of Chinese-built VK-1 engines. Even though the J-3 did not represent the state-of-the-art in jet fighters anymore, it was the best option for an industrial quickstart and until 1956 a dedicated production site for the J-3 was built at Wonsan, leading to the Wonsan Aircraft Works (Wonsan hang-gong-gi jag-eob , 원산 항공기 작업) and its first military product, the 여-1 (Yeo-1 = W-1). When NATO became aware of the aircraft it received the reporting code name “Freshman”.

 

However, despite the J-3’s plans and tools at hand, the W-1’s production was hampered by the lack of experience, sub-optimal materials, and poor logistics (esp. concerning vital imported components like the Chinese WP-5 engine, a license-built VK-1). Consequently, it took almost three years to roll out the first pre-serial production aircraft in 1959, and even then, the W-1 was plagued with material and reliability problems. Furthermore, once the W-1 became operational in 1961, the aircraft had become outdated. The W-1 had been designed to intercept straight-and-level-flying enemy bombers, not for air-to-air combat (dogfighting) with other fighters. The subsonic (Mach .76) fighter was effective against slower (Mach .6-.8), heavily loaded U.S. fighter-bombers from the Fifties, as well as the mainstay American strategic bombers during the aircraft's development cycle (such as the Boeing B-50 Superfortress or Convair B-36 Peacemaker, which were both still powered by piston engines). It was not however able to intercept the new generation of British jet bombers such as the Avro Vulcan and Handley Page Victor, which could both fly higher. Most W-1s were initially used as night fighters – even though they lacked any on-board radar and the pilot had to rely on visual contact and/or radio guidance from ground stations to make out and close in on a potential target. The USAF's introduction of strategic bombers capable of supersonic dash speeds such as the B-58 Hustler and General Dynamics FB-111 rendered the W-1 totally obsolete in front-line KPAAF service, and they were quickly supplanted by supersonic interceptors such as the MiG-21 and MiG-23.

 

The rugged aircraft was not retired, though, and found use as ground attack aircraft (despite its limited payload of around 2 tons) and as an advanced fighter trainer. Total production numbers are uncertain, but less than 100 W-1s were produced until 1969, with no further variants becoming known. In 1990, probably forty were still operational, and even after 2000 some KPAAF W-1s were still flying.

  

General characteristics:

Crew: 1

Length: 10.73 m (35 ft 2 in)

Wingspan: 12.16 m (39 ft 10½ in)

Height: 4.46 m (14 ft 7½ in)

Wing area: 23.8 m² (256 sq ft)

Aspect ratio: 7.3

Empty weight: 4,142 kg (9,132 lb)

Gross weight: 7,404 kg (16,323 lb)

Max takeoff weight: 7,900 kg (17,417 lb)

 

Powerplant:

1× Wopen WP-5 (Rolls-Royce Nene Mk.104B) centrifugal-flow turbojet

with 26.5 kN (5,950 lbf) thrust

 

Performance:

Maximum speed: 940 km/h (580 mph, 510 kn) at sea level

Maximum speed: Mach 0.76

Cruise speed: 750 km/h (470 mph, 400 kn)

Maximum Mach number: M0.83

Combat range: 450 km (280 mi, 240 nmi)

Ferry range: 920 km (570 mi, 500 nmi)

Service ceiling: 13,000 m (43,000 ft)

Rate of climb: 38 m/s (7,500 ft/min)

Take-off run: 783 m (2,569 ft)

Landing run: 910 m (2,986 ft)

 

Armament:

4× 23 mm (0.906 in) Nudelman-Suranov NS-23 autocannon with 100 rounds per gun

2× underwing hardpoints for 2.000 kg of payload, including a variety of unguided iron bombs such

as 2× 250 kg (500 lb) bombs, napalm tanks, pods with unguided missiles, or 2× 350 l (92 US

gal; 77 imp gal) drop tanks for extended range.

  

The kit and its assembly:

I always thought that the tubby Dassault Ouragan had something “Soviet-ish” about it, looking much like one of the obscure early Yakowlew jet fighter prototypes (e .g. the straight-wing Yak-25 [first use of this designation in 1947] or the swept-wing Yak-30) around 1950. With this idea I had stashed away a Heller Ouragan for a while, and recently wondered about an indigenous North-Korean aircraft that could have emerged after the Korean War? The Ouragan looked like a good basis, and so this project started as a simple conversion of the Heller kit.

 

While most of the airframe was retained, I made some cosmetic changes to change the aircraft’s looks and add a Warsaw Pact flavor. The characteristic wing tip tanks disappeared, and the wings’ ends were rounded off. The fin tip was extended with a piece of 1.5 mm styrene sheet and a different fin shape was sculpted from it. The original stabilizers were replaced with what I think are stabilizers from a VEB Plasticart 1:100 An-24 – they better match the wing shape than the OOB parts!

The cockpit was taken OOB, I just replaced the ejection seat with a different piece from a KP 1:72 MiG-19. The air intake was modified with the opening from a Heller 1:72 F-84G, extending and narrowing it slightly, even though the internal splitter plate (which also bears the front wheel well) was retained. The landing gear was also basically taken OOB, but the main wheels were now mounted on the outside position (with an adaptation of the covers), and the front wheel was moved 3 mm further forward, to compensate for the slightly longer nose section, and its cover was modified accordingly. The flaps were lowered, primarily because this modification is easy to realize on this kit and it makes the simple aircraft look “livelier”, and the canopy was cut into three parts for open display.

Pylons were added under the wings, together with drop tanks from a Hobby Boss 1:72 MiG-15. The same source provided the swept antenna mast behind the cockpit and the small but characteristic altimeter sensors under the wings. As a final twist of “Sovietization” I added small fences to the wings, made from styrene profiles – they would not be necessary on the aircraft’s straight wings, but they help change the model’s overall look. 😉

 

Building the Heller Ouragan was a straightforward affair, even though the plastic of the recent re-boxing I used was pretty soft and took long to cure after gluing parts together. A real problem occurred when I tried to close the fuselage halves, though, because the parts did not align well behind the cockpit, as if they were warped? The walls were rather thin, too, and as a result a lot of PSR went into the spine and the ventral area behind the wings, which mismatched badly. The rather thin material in these areas did not help much, either. I have built the Ouragan before, and I do not remember these massive troubles?!

  

Painting and markings:

I initially considered a North-Korean night fighter camouflage from the Korea War, but since the aircraft would have been introduced into service after the open hostilities, I rather settled for a very dry NMF finish with minimal markings. Therefore, the model received an overall coat with “White Aluminum” from the rattle can and a light overall rubbing treatment with graphite to emphasize the raised panel lines and add a slightly irregular metallic shine to the paint. Since they had disappeared through PSR, I also added/recreated some panel lines with a soft pencil.

The cockpit interior was painted in medium grey and Soviet cockpit turquoise, the landing gear and its wells became metallic-grey (Humbrol 56). The areas around the exhaust and the guns were painted with Revell 91 (Iron), the only color contrasts are red trim tabs.

 

The large KPAAF roundels with a white background came from a Cutting Edge MiG-15 sheet, the large red tactical code was left over from an unidentifiable “Eastern Bloc” model’s decal sheet. After some more graphite treatment around the guns and the tail section the model was sealed with a coat of semi-gloss acrylic varnish (Italeri), resulting in a nice metallic shine that looks better than expected on this uniform aircraft.

  

Well, this converted Ouragan looks pretty dull at first sight, due to its simple livery. But this makes it pretty plausible, and the small cosmetic changes add a serious Soviet-esque touch to the aircraft.

This year I plan on attending Brickfair Virginia and like last year, will be participating in a military collaboration themed “eXperimental military”. This is the second set of models which I plan on displaying with many more in the works. From left to right is the Heinkel 178 then, the Gloster E.28 Pioneer. Both of these models represent a milestone in aviation and served as testbeds for the early jet engine. The E.28 was the RAFs test aircraft to test Frank Whittle’s new jet engine. Technically, the British designed and patented the jet first, however the Germans got their jet airborne making its maiden flight in 1939 betting the British to the first jet. The Germans saw the potential in the jet. Hitler wanted an aircraft far superior to anything the allies had and was willing to fund more experimental projects. The British government however, did not see the jet as a viable replacement to propeller driven aircraft which delayed the development of the first British jet fighter. Both countries did end up finally making a jet fighter. Germany made the Me-262 and the British eventually came up with the Meteor.

 

My models have functioning undercarriages and are scaled to mini figure scale. I plan on contributing more to the collab but thought that this would be a nice addition.

+++ 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 Korean People's Army Air and Anti-Air Force began as the "Korean Aviation Society" in 1945. It was organized along the lines of flying clubs in the Soviet Union. In 1946, the society became a military organization and became an aviation division of the Korean People's Army (KPA). It became a branch of the army in its own right in November 1948. The KPAF incorporated much of the original Soviet air tactics, as well as North Korean experience from the UN bombings during the Korean War.

 

North Korea’s first indigenous jet fighter aircraft, the Wonsan Aircraft Works 여-1 (known as “W-1” outside of the country), started its existence in China as the Shenyang J-3 (Jianjiji = fighter). The J-3 was a project to exploit the knowledge and hardware gained through the license production of the Soviet MiG-15UTI trainer, locally designated JJ-2 (Jianjiji Jiaolianji – fighter trainer), a study that was primarily intended to improve China’s aircraft industry and the country’s respective engineering know how after the Korean War. The Soviet VVS and PVO had been the primary users of the MiG-15 during the Korean war, but not the only ones; it was also used by the PLAAF and KPAF (known as the United Air Army).

The J-3 was designed during the Korean War between 1952 and 1953 and two prototypes were built with Soviet help and tested in 1953, but the aircraft came too late – and it was not regarded as a successor or even an alternative to the Soviet MiG-15, because it lacked modern features like swept wings. The J-3’s design drew more on American rather than British inspiration, having elected to use features such as a very thin (but almost straight) wing akin to the Lockheed P-80 Shooting Star and a basic configuration comparable to the North American F-86 Sabre. Due to its conceptual interceptor role, an emphasis had been placed on a fast rate of climb. Power came from a Klimov VK-1 centrifugal-flow turbojet, a derivative of the British Rolls-Royce Nene Mk.104B that also powered the MiG-15. Armament consisted of four 23 mm (0.906 in) Nudelman-Suranov NS-23 autocannon under the nose.

 

The J-3’s rate of progress on the project was such that, within 15 months of design work having formally started, the first prototype had been fully constructed. On 28 October 1953, the first J-3 fighter prototype conducted its first flight, even though it still lacked pressurization, armament, and other military equipment. Gradually, new hardware was integrated and tested, and a second aircraft joined the tests in January 1954. Flight tests followed quickly and showed that the J-3 was easy to fly and had exceptional performance and maneuverability for a straight-wing aircraft. Unfortunately, it soon became clear that the laminar flow section used for the original tail unit was totally unsuitable, with extremely severe buffeting setting in at 500 km/h (310 mph). The buffeting was so bad that the test pilots were thrown about in the cockpit, banging their head on the canopy, and the needles fell off all the flight instruments. Fortunately, accidents could be avoided, and the tailplane section was changed with much improved results.

The gun armament caused troubles, too. Firing all four NS-23 at once made the robust engine surge – a problem that did not occur on the MiG-15, but it only carried two of these weapons. A remedy was eventually found through the introduction of a slightly elongated nose that kept the air intake further away from the gun blast shock waves. The flight and test program lasted until 1955, and a total of five J-3 prototypes were built, but with no serious plan to put this aircraft into series production, even more so after China had been offered to produce the even more modern and capable Soviet MiG-17 fighter under license as the J-5. In the People's Republic of China (PRC), an initial MiG-17F was assembled from parts in 1956, with license production following in 1957 at Shenyang. The Chinese-built version was/is known as the Shenyang J-5 (for local use) or F-5 (for export). After this decision, the J-3 program was stopped, but the machines were retained in flightworthy condition as testbeds and chase planes by the PLAAF until the late Sixties

 

However, this was not the end of the J-3. After fighting had ended on 27 July 1953 when the Korean Armistice Agreement was signed, the Korean People's Army Air and Anti-Air Force (KPAAF) was keen to boost its capabilities and build a domestic aircraft industry, beyond the option to produce existing designs in license. Turning to its main sponsor China, North Korea was offered the plans for the J-3 and its tools, together with a supply of Chinese-built VK-1 engines. Even though the J-3 did not represent the state-of-the-art in jet fighters anymore, it was the best option for an industrial quickstart and until 1956 a dedicated production site for the J-3 was built at Wonsan, leading to the Wonsan Aircraft Works (Wonsan hang-gong-gi jag-eob , 원산 항공기 작업) and its first military product, the 여-1 (Yeo-1 = W-1). When NATO became aware of the aircraft it received the reporting code name “Freshman”.

 

However, despite the J-3’s plans and tools at hand, the W-1’s production was hampered by the lack of experience, sub-optimal materials, and poor logistics (esp. concerning vital imported components like the Chinese WP-5 engine, a license-built VK-1). Consequently, it took almost three years to roll out the first pre-serial production aircraft in 1959, and even then, the W-1 was plagued with material and reliability problems. Furthermore, once the W-1 became operational in 1961, the aircraft had become outdated. The W-1 had been designed to intercept straight-and-level-flying enemy bombers, not for air-to-air combat (dogfighting) with other fighters. The subsonic (Mach .76) fighter was effective against slower (Mach .6-.8), heavily loaded U.S. fighter-bombers from the Fifties, as well as the mainstay American strategic bombers during the aircraft's development cycle (such as the Boeing B-50 Superfortress or Convair B-36 Peacemaker, which were both still powered by piston engines). It was not however able to intercept the new generation of British jet bombers such as the Avro Vulcan and Handley Page Victor, which could both fly higher. Most W-1s were initially used as night fighters – even though they lacked any on-board radar and the pilot had to rely on visual contact and/or radio guidance from ground stations to make out and close in on a potential target. The USAF's introduction of strategic bombers capable of supersonic dash speeds such as the B-58 Hustler and General Dynamics FB-111 rendered the W-1 totally obsolete in front-line KPAAF service, and they were quickly supplanted by supersonic interceptors such as the MiG-21 and MiG-23.

 

The rugged aircraft was not retired, though, and found use as ground attack aircraft (despite its limited payload of around 2 tons) and as an advanced fighter trainer. Total production numbers are uncertain, but less than 100 W-1s were produced until 1969, with no further variants becoming known. In 1990, probably forty were still operational, and even after 2000 some KPAAF W-1s were still flying.

  

General characteristics:

Crew: 1

Length: 10.73 m (35 ft 2 in)

Wingspan: 12.16 m (39 ft 10½ in)

Height: 4.46 m (14 ft 7½ in)

Wing area: 23.8 m² (256 sq ft)

Aspect ratio: 7.3

Empty weight: 4,142 kg (9,132 lb)

Gross weight: 7,404 kg (16,323 lb)

Max takeoff weight: 7,900 kg (17,417 lb)

 

Powerplant:

1× Wopen WP-5 (Rolls-Royce Nene Mk.104B) centrifugal-flow turbojet

with 26.5 kN (5,950 lbf) thrust

 

Performance:

Maximum speed: 940 km/h (580 mph, 510 kn) at sea level

Maximum speed: Mach 0.76

Cruise speed: 750 km/h (470 mph, 400 kn)

Maximum Mach number: M0.83

Combat range: 450 km (280 mi, 240 nmi)

Ferry range: 920 km (570 mi, 500 nmi)

Service ceiling: 13,000 m (43,000 ft)

Rate of climb: 38 m/s (7,500 ft/min)

Take-off run: 783 m (2,569 ft)

Landing run: 910 m (2,986 ft)

 

Armament:

4× 23 mm (0.906 in) Nudelman-Suranov NS-23 autocannon with 100 rounds per gun

2× underwing hardpoints for 2.000 kg of payload, including a variety of unguided iron bombs such

as 2× 250 kg (500 lb) bombs, napalm tanks, pods with unguided missiles, or 2× 350 l (92 US

gal; 77 imp gal) drop tanks for extended range.

  

The kit and its assembly:

I always thought that the tubby Dassault Ouragan had something “Soviet-ish” about it, looking much like one of the obscure early Yakowlew jet fighter prototypes (e .g. the straight-wing Yak-25 [first use of this designation in 1947] or the swept-wing Yak-30) around 1950. With this idea I had stashed away a Heller Ouragan for a while, and recently wondered about an indigenous North-Korean aircraft that could have emerged after the Korean War? The Ouragan looked like a good basis, and so this project started as a simple conversion of the Heller kit.

 

While most of the airframe was retained, I made some cosmetic changes to change the aircraft’s looks and add a Warsaw Pact flavor. The characteristic wing tip tanks disappeared, and the wings’ ends were rounded off. The fin tip was extended with a piece of 1.5 mm styrene sheet and a different fin shape was sculpted from it. The original stabilizers were replaced with what I think are stabilizers from a VEB Plasticart 1:100 An-24 – they better match the wing shape than the OOB parts!

The cockpit was taken OOB, I just replaced the ejection seat with a different piece from a KP 1:72 MiG-19. The air intake was modified with the opening from a Heller 1:72 F-84G, extending and narrowing it slightly, even though the internal splitter plate (which also bears the front wheel well) was retained. The landing gear was also basically taken OOB, but the main wheels were now mounted on the outside position (with an adaptation of the covers), and the front wheel was moved 3 mm further forward, to compensate for the slightly longer nose section, and its cover was modified accordingly. The flaps were lowered, primarily because this modification is easy to realize on this kit and it makes the simple aircraft look “livelier”, and the canopy was cut into three parts for open display.

Pylons were added under the wings, together with drop tanks from a Hobby Boss 1:72 MiG-15. The same source provided the swept antenna mast behind the cockpit and the small but characteristic altimeter sensors under the wings. As a final twist of “Sovietization” I added small fences to the wings, made from styrene profiles – they would not be necessary on the aircraft’s straight wings, but they help change the model’s overall look. 😉

 

Building the Heller Ouragan was a straightforward affair, even though the plastic of the recent re-boxing I used was pretty soft and took long to cure after gluing parts together. A real problem occurred when I tried to close the fuselage halves, though, because the parts did not align well behind the cockpit, as if they were warped? The walls were rather thin, too, and as a result a lot of PSR went into the spine and the ventral area behind the wings, which mismatched badly. The rather thin material in these areas did not help much, either. I have built the Ouragan before, and I do not remember these massive troubles?!

  

Painting and markings:

I initially considered a North-Korean night fighter camouflage from the Korea War, but since the aircraft would have been introduced into service after the open hostilities, I rather settled for a very dry NMF finish with minimal markings. Therefore, the model received an overall coat with “White Aluminum” from the rattle can and a light overall rubbing treatment with graphite to emphasize the raised panel lines and add a slightly irregular metallic shine to the paint. Since they had disappeared through PSR, I also added/recreated some panel lines with a soft pencil.

The cockpit interior was painted in medium grey and Soviet cockpit turquoise, the landing gear and its wells became metallic-grey (Humbrol 56). The areas around the exhaust and the guns were painted with Revell 91 (Iron), the only color contrasts are red trim tabs.

 

The large KPAAF roundels with a white background came from a Cutting Edge MiG-15 sheet, the large red tactical code was left over from an unidentifiable “Eastern Bloc” model’s decal sheet. After some more graphite treatment around the guns and the tail section the model was sealed with a coat of semi-gloss acrylic varnish (Italeri), resulting in a nice metallic shine that looks better than expected on this uniform aircraft.

  

Well, this converted Ouragan looks pretty dull at first sight, due to its simple livery. But this makes it pretty plausible, and the small cosmetic changes add a serious Soviet-esque touch to the aircraft.

Close up of a Dakota on display in the Cold War Building, RAF Cosford Museum, England.

Camera: Canon EOS 5D Mark II

 

The Douglas C47, known as the Dakota in the Royal Air Force and Commonwealth services, became the world's best known transport aircraft. The type saw widespread use by the Allies during the Second World War and by Air Forces and airlines post-war.

 

The C47 Skytrain and C53 Skytrooper were military versions of the DC3 airliner. The DC3 first flew in 1935 and was ordered by America's airlines. With the outbreak of war these aircraft were diverted to the Allied Air Forces, followed by 10000 military variants constructed before production ceased in 1946. Japan and the Soviet Union also built over 2000 unlicensed copies.

 

The first of over 1900 Dakotas received by the RAF arrived in India in 1942. Dakotas served in every theatre of the war, notably in Burma, during the D-Day landings and the airborne assault on Arnhem in 1944.

 

Most RAF Dakotas had been retired or sold by 1950, the last active aircraft leaving the service in 1970. The Royal Aircraft Establishment at Farnborough operated a former Royal Canadian Air Force example (ZA947) from 1971 until 1993, when it joined the Battle of Britain Memorial Flight.

 

British Overseas Airways Corporation (BOAC) took their first deliveries of Douglas Dakota C47s in 1943 and the last of approximately 60 aircraft in 1946. During WWII Dakotas were operated by both the RAF and BOAC.

 

After the war, BOAC sold the fleet, fourteen of which went to British European Airways when the airline was formed in 1946. One of the Dakotas acted as a testbed for the Rolls-Royce Dart engine before it powered the Vickers Viscount, the world's first turbo-prop aircraft.

6th B-58 ever built (AF Serial No. 55-0665), used as a AN/ASG-18 and GAR-9 testbed. To accomodate the AN/ASG-18 radar the B-58 was lengthened by approximately 7 feet (the nose is longer than a standard B-58). This aircraft was also used to test launch the GAR-9 (aka Falcon) missile, until that mission was taken over by the YF-12 interceptor version of the Blackbird.

 

Moved to photo target range at Edwards AFB when testing career was over, now just a derelict hulk.

 

Google Earth view of site: View Larger Map

Had to go across to Dodworth Coop yesterday to get something for dinner and checking Realtime trains saw that the second prototype sprinter unit was working the Huddersfield to Sheffield service and as it's 39 years since I got a photo of it decided that it would be a good opportunity.

 

Left view taken on 1st October 1985 shows the unit as built waiting departure from Derby with the 1525 to Crewe, the right hand view shows the same unit depating from Dodworth on the 24th January 2024 with 2B19 the 1412 Huddersfield to Sheffield.

 

Two prototype 150 units were built at York in 1984 150001 was fitted with Cummins engines and Voith hydraulic transmission, and 150002 was fitted with Perkins (Rolls-Royce) engines and a fully automatic gearbox, 150002 proved to be the worse of the two for reliability, and was chosen for use as the testbed for the Class 158, being re-geared to a maximum speed of 90 mph (140 km/h) and fitted with Cummins engines and Voith transmission been reduced to a Two-Car reclassified and renumbered 154001 later becoming 154002 the third car was re-installed shortly before the unit was converted to a standard Class 150 in 1992 and given it's original number again, after service with Centro and GWR it found it's way to Northern and is still gouing strong after nearly 40 years.

  

Copyright © Keith Long - All rights reserved.

This aircraft served as a testbed for a possible RR Avon-powered Mirage for Australia. In the end, the RAAF opted for the standard SNECMA Atar engine. Later it flew with the French CEV on refuelling trials.

See this locomotive in the video here: www.youtube.com/watch?v=N3oxDV2lg1s

 

Having just worked the "Cumbrian Mountaineer" over Shap, preserved London, Midland & Scottish Railway Princess Royal 6201 'Princess Elizabeth' readies itself for departure with empty stock bound for the adjacent sidings on what was her last railtour before overhaul.

 

The Princess Royal class were a set of 13 4-6-2 Pacific locomotives designed by William Stanier and built at Crewe Works between 1933 and 1935 to be the prime motive power on the West Coast Mainline between London Euston, Birmingham, Manchester, Liverpool and Glasgow, including the famous Royal Scot premier express service. At first, two prototypical locomotives were built in 1933, followed by 11 production locomotives in 1935. These were later complimented by a fleet of 38 Coronation Pacific locomotives built between 1937 and 1948, which later went on to be arguably the most power steam locomotives ever built for the British Railway network.

 

One of the original prototypes however was retained for use as a testbed for a new Turbine Locomotive project to help improve the efficiency of the engines, later being unofficially dubbed 'Turbomotive'. The engine was fitted with turbines instead of cylinders, with the forward turbine containing 18 rows of blading, resulting in an output of 2,400hp, corresponding to running at 62 mph (100 km/h). The turbine was designed to operate into a maximum back-pressure of 2 psi, allowing a conventional double blast-pipe to provide the boiler draught, and eliminating draught fans, which always seemed to give a disproportionate amount of trouble.

 

The reverse turbine had 4 rows of blades. It was engaged by a dog clutch, activated when the reverser lever being set to "0". This was originally steam-operated by a small piston and cylinder. This locomotive was later rebuilt as a conventional classmate in 1952, using new mainframes and a spare set of cylinders from one of the Coronation Pacifics, and was numbered 46202, later to be named 'Princess Anne'.

 

6201, LMS lot number 99, was built at Crewe for the sum of £11,675 (£685,000 today) and named Princess Elizabeth, after the then Duke of York’s eldest daughter, currently our Queen Elizabeth II, leaving the works on 3rd November 1933.

 

Throughout the years the Princess Royal's continued to ply their trade on the West Coast services, but the years of World War II took their toll on the fleet. The beautiful Crimson Lake was replaced by Wartime Black, and the prestige manner that these locomotives had been accustomed to was stripped away as the railways were rationalised as part of the war effort. Work hours increased, and maintenance turns reduced, meaning these engines were being forced to the very limit of their design to keep Britain moving.

 

With the end of the war in 1945 the workload began to decrease, but the railways had paid the price. The beauty and lavish luxury of the pre-war companies had been stripped and would never return, with all of Britain's main railway companies now almost bankrupt and working a fleet of very tired engines on a poorly maintained railway network. In 1948 the Labour Government nationalised these companies to create British Railways, hoping to modernise the network and rebuild the overworked system.

 

The Princess Royals and their more powerful sisters the Coronation Pacifics continued to work hard as the implementation of diesels gathered pace. Early diesels however were underpowered and suffered heavily from reliability issues, meaning on many occasions the steam locomotives that they intended to replace actually came to their rescue!

 

It was not all plain sailing though for the Princess Royals in the 1950's, as this decade was littered with many fatal accidents. On 21 September 1951, locomotive No.46207 Princess Arthur of Connaught was hauling an express passenger train that was derailed at Weedon, Northamptonshire due to a defective front bogie on the locomotive, resulting in the deaths of 15 people and the injury of 35.

 

This was followed a year later by what would turn out to be the worst rail accident in the whole of British history. On 8 October 1952, an express passenger train hauled by Coronation Class, 46242 'City of Glasgow' overran signals on a train from Perth to London Euston, striking the rear of a stopped Tring to Euston commuter train at Harrow and Wealdstone station in North London. The ensuing wreckage was then struck by a northbound Liverpool express, hauled by Jubilee Class 45637 'Windward Islands', and recently rebuilt ex-Turbomotive Princess Royal 46202 'Princess Anne', which had only entered service two months earlier. In the chaos that followed, a total of 112 people were killed and 340 were injured, with 46202 obliterated in the accident, the first and only member of the class to be lost in an accident.

 

The late 50's however began to see the end of these engines as good, reliable diesels began to be introduced to replace them, followed closely by electric traction on the West Coast Mainline out of Euston. In 1961 the first members of the class were withdrawn from service, including 6201, which was placed in store in March 1961, but returned to service in May of that year due to poor diesel reliability.

 

As more diesels were delivered, in October of the same year 6201 was again placed into storage at Carlisle Kingmoor. However, again in January 1962 6201 was returned to traffic to cover for diesel failures and continued to work until September 1962 where it was once again placed into storage. It was subsequently withdrawn by BR in October 1962 and purchased by Roger Bell. The last of the locomotives to be withdrawn was class premier and original prototype number 62000 'The Princess Royal', which was withdrawn in November 1962 and subsequently scrapped. In all, only two locomotives were preserved, number 6203 'Princess Margaret Rose' and 6201 'Princess Elizabeth'.

 

46201 was bought by the then Princess Elizabeth Locomotive Society straight from BR service when withdrawn in 1962. Initially kept at the Dowty Railway Preservation Society's premises at Ashchurch in Gloucestershire, and then subsequently at the Bulmers Railway Centre in Hereford. When the Bulmers Centre closed in the 1990s, the loco moved to the East Lancashire Railway. Since April 2009 it has been based at the Crewe Heritage Centre. On 3 June 2012, Princess Elizabeth's whistle signalled the start of the Thames Diamond Jubilee Pageant while the locomotive was standing on Battersea Railway Bridge. The Queen was made aware of the locomotive and waved to the crew on the footplate. On 11 July 2012 Princess Elizabeth hauled the Royal Train from Newport to Hereford and again from Worcester to Oxford as part of the Diamond Jubilee Tour. 6201 was withdrawn from service in July 2012 for a piston and valve examination at the Tyseley Locomotive Works and after repairs, she returned to service on 17 November hauling the "Cumbrian Mountaineer" from Carnforth to Carlisle. She was withdrawn for overhaul at the end of December 2012 having completed her longest period of operation in preservation.

+++ 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 Lockheed F-94 Starfire was a first-generation jet aircraft of the United States Air Force. It was developed from the twin-seat Lockheed T-33 Shooting Star in the late 1940s as an all-weather, day/night interceptor, replacing the propeller-driven North American F-82 Twin Mustang in this role. The system was designed to overtake the F-80 in terms of performance, but more so to intercept the new high-level Soviet bombers capable of nuclear attacks on America and her Allies - in particular, the new Tupelov Tu-4. The F-94 was furthermore the first operational USAF fighter equipped with an afterburner and was the first jet-powered all-weather fighter to enter combat during the Korean War in January 1953.

 

The initial production model, the F-94A, entered operational service in May 1950. Its armament consisted of four 0.50 in (12.7 mm) M3 Browning machine guns mounted in the fuselage with the muzzles exiting under the radome for the APG-33 radar, a derivative from the AN/APG-3, which directed the Convair B-36's tail guns and had a range of up to 20 miles (32 km). Two 165 US Gallon (1,204 litre) drop tanks, as carried by the F-80 and T-33, were carried on the wingtips. Alternatively, these could be replaced by a pair of 1,000 lb (454 kg) bombs under the wings, giving the aircraft a secondary fighter bomber capability. 109 were produced.

 

The subsequent F-94B, which entered service in January 1951, was outwardly virtually identical to the F-94A. Its Allison J33 turbojet had a number of modifications made, though, which made it a very reliable engine. The pilot was provided with a roomier cockpit and the canopy received a bow frame in the center between the two crew members. A new Instrument Landing System (ILS) was fitted, too, which made operations at night and/or in bad weather much safer. However, this new variant’s punch with just four machine guns remained weak, and, to improve the load of fire, wing-mounted pods with two additional pairs of 0.5” machine guns were introduced – but these hardly improved the interceptor’s effectiveness. 356 of the F-94B were nevertheless built.

 

The following F-94C was extensively modified and initially designated F-97, but it was ultimately decided just to treat it as a new version of the F-94. USAF interest was lukewarm since aircraft technology had already developed at a fast pace – supersonic performance had already become standard. Lockheed funded development themselves, converting two F-94B airframes to YF-94C prototypes for evaluation with a completely new, much thinner wing, a swept tail surface and a more powerful Pratt & Whitney J48. This was a license-built version of the afterburning Rolls-Royce Tay, which produced a dry thrust of 6,350 pounds-force (28.2 kN) and approximately 8,750 pounds-force (38.9 kN) with afterburning. Instead of machine guns, the proposed new variant was exclusively armed with unguided air-to-air missiles.

Tests were positive and eventually the F-94C was adopted for USAF service, since it was the best interim solution for an all-weather fighter at that time. It still had to rely on Ground Control Interception Radar (GCI) sites to vector the interceptor to intruding aircraft, though.

 

The F-94C's introduction and the availability of the more effective Northrop F-89C/D Scorpion and the North American F-86D Sabre interceptors led to a quick relegation of the earlier F-94 variants from mid-1954 onwards to second line units and to Air National Guards. By 1955 most of them had already been phased out of USAF service, and some of these relatively young surplus machines were subsequently exported or handed over to friendly nations, too. When sent to the ANG, the F-94As were modified by Lockheed to F-94B standards and then returned to the ANG as B models. They primarily replaced outdated F-80C Shooting Stars and F-51D/H Mustangs.

 

At that time the USAF was looking for a tactical reconnaissance aircraft, a more effective successor for the RF-80A which had shown its worth and weaknesses during the Korea War. For instance, the plane could not fly at low altitude long enough to perform suitable visual reconnaissance, and its camera equipment was still based on WWII standards. Lockheed saw the opportunity to fill this operational gap with conversions of existing F-94A/B airframes, which had, in most cases, only had clocked few flying hours, primarily at high altitudes where Soviet bombers were expected to lurk, and still a lot of airframe life to offer. This led to another private venture, the RF-94B, auspiciously christened “Stargazer”.

 

The RF-94B was based on the F-94B interceptor with its J33 engine and the original unswept tail. The F-94B’s wings were retained but received a different leading-edge profile to better cope with operations at low altitude. The interceptor’s nose with the radome and the machine guns underneath was replaced by a new all-metal nose cone, which was more than 3 feet longer than the former radar nose, with windows for several sets of cameras; the wedge-shaped nose cone quickly earned the aircraft the unofficial nickname “Crocodile”.

One camera was looking ahead into flight direction and could be mounted at different angled downward (but not moved during flight), followed by two oblique cameras, looking to the left and the right, and a vertical camera as well as a long-range camera focussed on the horizon, which was behind a round window at port side. An additional, spacious compartment in front of the landing gear well held an innovative Tri-Metrogen horizon-to-horizon view system that consisted of three synchronized cameras. Coupled with a computerized control system based on light, speed, and altitude, it adjusted camera settings to produce pictures with greater delineation.

All cameras could be triggered individually by pilot or a dedicated observer/camera systems operator in the 2nd seat. Talking into a wire recorder, the crew could describe ground movements that might not have appeared in still pictures. A vertical view finder with a periscopic presentation on the cockpit panel was added for the pilot to enhance visual reconnaissance and target identification directly under the aircraft. Using magnesium flares carried under its wings in flash-ejector cartridges, the RF-94B was furthermore able to fly night missions.

The RF-94B was supposed to operate unarmed, but it could still carry a pair of 1.000 lb bombs under its wings or, thanks to added plumbings, an extra pair of drop tanks for ferry flights. The F-94A/B’s machine gun pods as well as the F-94C’s unguided missile launchers could be mounted to the wings, too, making it a viable attack aircraft in a secondary role.

 

The USAF was highly interested in this update proposal for the outdated interceptors (almost 500 F-94A/Bs had been built) and ordered 100 RF-94B conversions with an option for 100 more – just when a severe (and superior) competitor entered the stage after a lot of development troubles: Republic’s RF-84F Thunderflash reconnaissance version. The first YRF-84F had already been completed in February 1952 and it had an overall slightly better performance than the RF-94B. However, it offered more internal space for reconnaissance systems and was able to carry up to fifteen cameras with the support of many automatized systems, so that it was a single seater. Being largely identical to the F-84F and sharing its technical and logistical infrastructures, the USAF decided on short notice to change its procurement decision and rather adopt the more modern and promising Thunderflash as its standard tactical reconnaissance aircraft. The RF-94B conversion order was reduced to the initial 100 aircraft, and to avoid operational complexity these aircraft were exclusively delivered to Air National Guardss that had experience with the F-94A/B to replace their obsolete RF-80As.

 

Gradual replacement lasted until 1958, and while the RF-94B’s performance was overall better than the RF-80A’s, it was still disappointing and not the expected tactical intelligence gathering leap forward. The airframe did not cope well with constant low-level operations, and the aircraft’s marginal speed and handling did not ensure its survivability. However, unlike the RF-84F, which suffered from frequent engine problems, the Stargazers’ J33 made them highly reliable platforms – even though the complex Tri-Metrogen device turned out to be capricious, so that it was soon replaced with up to three standard cameras.

 

For better handling and less drag esp. at low altitude, the F-94B’s large Fletcher type wingtip tanks were frequently replaced with smaller ones with about half capacity. It also became common practice to operate the RF-94Bs with only a crew of one, and from 1960 on the RF-94B was, thanks to its second seat, more and more used as a trainer before pilots mounted more potent reconnaissance aircraft like the RF-101 Voodoo, which eventually replaced the RF-94B in ANG service. The last RF-94B was phased out in 1968, and, unlike the RF-84F, it was not operated by any foreign air force.

  

General characteristics:

Crew: 2 (but frequently operated by a single pilot)

Length: 43 ft 4 3/4 in (13.25 m)

Wingspan (with tip tanks): 40 ft 9 1/2 in (12.45 m)

Height: 12 ft. 2 (3.73 m)

Wing area: 234' 8" sq ft (29.11 m²)

Empty weight: 10,064 lb (4,570 kg)

Loaded weight: 15,330 lb (6,960 kg)

Max. takeoff weight: 24,184 lb (10,970 kg)

 

Powerplant:

1× Allison J33-A-33 turbojet, rated at 4,600 lbf (20.4 kN) continuous thrust,

5,400 lbf (24 kN) with water injection and 6,000 lbf (26.6 kN) thrust with afterburner

 

Performance:

Maximum speed: 630 mph (1,014 km/h) at height and in level flight

Range: 930 mi (813 nmi, 1,500 km) in combat configuration with two drop tanks

Ferry range: 1,457 mi (1,275 nmi, 2,345 km)

Service ceiling: 42,750 ft (14,000 m)

Rate of climb: 6,858 ft/min (34.9 m/s)

Wing loading: 57.4 lb/ft² (384 kg/m²)

Thrust/weight: 0.48

 

Armament:

No internal guns; 2x 165 US Gallon (1,204 liter) drop tanks on the wing tips and…

2x underwing hardpoints for two additional 165 US Gallon (1,204 liter) ferry tanks

or bombs of up to 1.000 lb (454 kg) caliber each, plus…

2x optional (rarely fitted) pods on the wings’ leading edges with either a pair of 0.5" (12.7 mm)

machine guns or twelve 2.75” (70 mm) Mk 4/Mk 40 Folding-Fin Aerial Rockets each

  

The kit and its assembly:

This project was originally earmarked as a submission for the 2021 “Reconnaissance & Surveillance” group build at whatifmodellers.com, in the form of a Heller F-94B with a new nose section. The inspiration behind this build was the real-world EF-94C (s/n 50-963): a solitary conversion with a bulbous camera nose. However, the EF-94C was not a reconnaissance aircraft but rather a chase plane/camera ship for the Air Research and Development Command, hence its unusual designation with the suffix “E”, standing for “Exempt” instead of the more appropriate “R” for a dedicated recce aircraft. There also was another EF-94C, but this was a totally different kind of aircraft: an ejection seat testbed.

 

I had a surplus Heller F-94B kit in The Stash™ and it was built almost completely OOB and did – except for some sinkholes and standard PSR work – not pose any problem. In fact, the old Heller Starfire model is IMHO a pretty good representation of the aircraft. O.K., its age might show, but almost anything you could ask for at 1:72 scale is there, including a decent, detailed cockpit.

 

The biggest change was the new camera nose, and it was scratched from an unlikely donor part: it consists of a Matchbox B-17G tail gunner station, slimmed down by the gunner station glazing's width at the seam in the middle, and this "sandwich" was furthermore turned upside down. Getting the transitional sections right took lots of PSR, though, and I added some styrene profiles to integrate the new nose into the rest of the hull. It was unintentional, but the new nose profile reminds a lot of a RF-101 recce Voodoo, and there's, with the straight wings, a very F-89ish look to the aircraft now? There's also something F2H-2ish about the outlines?

 

The large original wing tip tanks were cut off and replaced with smaller alternatives from a Hasegawa A-37. Because it was easy to realize on this kit I lowered the flaps, together with open ventral air brakes. The cockpit was taken OOB, I just modified the work station on the rear seat and replaced the rubber sight protector for the WSO with two screens for a camera operator. Finally, the one-piece cockpit glazing was cut into two parts to present the model with an open canopy.

  

Painting and markings:

This was a tough decision: either an NMF finish (the natural first choice), an overall light grey anti-corrosive coat of paint, both with relatively colorful unit markings, or camouflage. The USAF’s earlier RF-80As carried a unique scheme in olive drab/neutral grey with a medium waterline, but that would look rather vintage on the F-94. I decided that some tactical camouflage would make most sense on this kind of aircraft and eventually settled for the USAF’s SEA scheme with reduced tactical markings, which – after some field tests and improvisations in Vietnam – became standardized and was officially introduced to USAF aircraft around 1965 as well as to ANG units.

 

Even though I had already built a camouflaged F-94 some time ago (a Hellenic aircraft in worn SEA colors), I settled for this route. The basic colors (FS 30219, 34227, 34279 and 36622) all came from Humbrol (118, 117, 116 and 28, respectively), and for the pattern I adapted the paint scheme of the USAF’s probably only T-33 in SEA colors: a trainer based on Iceland during the Seventies and available as a markings option in one of the Special Hobby 1:32 T-33 kits. The low waterline received a wavy shape, inspired by an early ANG RF-101 in SEA camouflage I came across in a book. The new SEA scheme was apparently applied with a lot of enthusiasm and properness when it was brand new, but this quickly vaned. As an extra, the wing tip tanks received black anti-glare sections on their inner faces and a black anti-glare panel was added in front of the windscreen - a decal from a T-33 aftermarket sheet. Beyond a black ink wash the model received some subtle panel post-shading, but rather to emphasize surface details than for serious weathering.

 

The cockpit became very dark grey (Revell 06) while the landing gear wells were kept in zinc chromate green primer (Humbrol 80, Grass Green), with bright red (Humbrol 60, Matt Red) cover interiors and struts and wheels in aluminum (Humbrol 56). The interior of the flaps and the ventral air brakes became red, too.

 

The decals/markings came from a Special Hobby 1:72 F-86H; there’s a dedicated ANG boxing of the kit that comes with an optional camouflaged aircraft of the NY ANG, the least unit to operate the “Sabre Hog” during the Seventies. Since this 138th TFS formerly operated the F-94A/B, it was a perfect option for the RF-94B! I just used a different Bu. No. code on the fin, taken from a PrintScale A/T-37 set, and most stencils were perocured from the scrap box.

After a final light treatment with graphite around the afterburner for a more metallic shine of the iron metallic (Revell 97) underneath, the kit was sealed with a coat of matt acrylic varnish (Italeri).

  

A camouflaged F-94 is an unusual sight, but it works very well. The new/longer nose considerably changes the aircraft's profile, and even though the change is massive, the "Crocodile" looks surprisingly plausible, if not believable! And, despite the long nose, the aircraft looks pretty sleek, especially in the air.

Resplendent in her 'Raspberry Ripple' MoD(PE) colours, DERA's 'Active Control Technology' test-bed BAe Harrier T.4 XW175 in the static park at the RNAS Yeovilton 2000 'Air Day'

 

With it's lineage going back to the 'Flying Bedstead' the unique VTOL (Vertical Take-Off and Landing) Harrier 'Jump-Jet' was developed from the earlier P.1127 and then the Kestrel.

 

XW175 was the second two-seater Harrier ever to fly and was used for the VAAC (Vectored thrust Aircraft Advanced flight Control) programme for many years down at Boscombe Down.

 

Now retired she resides at at the RAF Museum at Cosford.

 

For more on this unique aircraft's testing check out the following link for an insight by the then BAe's Chief Test-pilot - John Farley, on the Harrier programme:

 

myweb.tiscali.co.uk/hawkerassociation/hanewsletters/hanew...

 

Scanned 35mm transparency

 

Best viewed on black by pressing L

This year I plan on attending Brickfair Virginia and like last year, will be participating in a military collaboration themed “eXperimental military”. This is the second set of models which I plan on displaying with many more in the works. From left to right is the Heinkel 178 then, the Gloster E.28 Pioneer. Both of these models represent a milestone in aviation and served as testbeds for the early jet engine. The E.28 was the RAFs test aircraft to test Frank Whittle’s new jet engine. Technically, the British designed and patented the jet first, however the Germans got their jet airborne making its maiden flight in 1939 betting the British to the first jet. The Germans saw the potential in the jet. Hitler wanted an aircraft far superior to anything the allies had and was willing to fund more experimental projects. The British government however, did not see the jet as a viable replacement to propeller driven aircraft which delayed the development of the first British jet fighter. Both countries did end up finally making a jet fighter. Germany made the Me-262 and the British eventually came up with the Meteor.

 

My models have functioning undercarriages and are scaled to mini figure scale. I plan on contributing more to the collab but thought that this would be a nice addition.

On July 19, 2013, Lockheed Martin’s full-sized, functional GPS III satellite prototype arrived at Cape Canaveral Air Force Station (CCAFS), Fla. Lockheed Martin delivered the GPS III Non-Flight Satellite Testbed (GNST) to the Cape so that CCAFS’s facilities and pre-launch processes could be tested, further reducing risk and gaining efficiencies, prior the first GPS III flight satellite’s expected delivery to the U.S. Air Force in 2014 and launch in 2015.

+++ DISCLAIMER +++

Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!

 

Some background:

The Northrop Grumman-IAI F-24 is the latest reincarnation of the USAF "Lightweight Fighter Program" which dates back to the 1950ies and started with the development of Northrop's F-5 "Freedom Fighter".

 

The 1st generation F-5 became very successful in the export market and saw a long line of development, including the much more powerful F-5E "Tiger II" and the F-20 Tigershark (initially called F-5G). Northrop had high hopes for the F-20 in the international market; however, policy changes following Ronald Reagan's election meant the F-20 had to compete for sales against aircraft like the F-16, the USAF's latest fighter design (which was politically favored). The F-20 development program was eventually abandoned in 1986 after three prototypes had been built and a fourth partially completed.

 

But this was not the end for Northrop’s Lightweight Fighter. In the early 1980s, two X-29As experimental aircraft were built by Grumman from two existing Northrop F-5A Freedom Fighter airframes. The Grumman X-29 was a testbed for forward-swept wings, canard control surfaces, and other novel aircraft technologies. The aerodynamic instability of this arrangement increased agility but required the use of computerized fly-by-wire control. Composite materials were used to control the aeroelastic divergent twisting experienced by forward-swept wings, also reducing the weight. The NASA test program continued from 1984 to 1991 and the X-29s flew 242 times, gathering valuable data and breaking ground for new aerodynamic technologies of 4th and 5th generation fighters.

 

Even though no service aircraft directly evolved from the X-29, its innovative FBW system as well as the new material technologies also opened the door for an updated F-20 far beyond the 1990ies. It became clear that ever expensive and complex aircraft could not be the answer to modern, asymmetrical warfare in remote corners of the world, with exploding development costs and just a limited number of aircraft in service that could not generate true economies of scale, esp. when their state-of-the-art design would not permit any export.

Anyway, a global market for simpler fighter aircraft was there, as 1st generation F-16s as well as the worldwide, aging F-5E fleet and types of Soviet/Russian origin like the MiG-29 provided the need for a modern, yet light and economical jet fighter. Contemporary types like the Indian HAL Tejas, the Swedish Saab Gripen, the French Dassault Rafale and the Pakistani/Chinese FC-1/JF-17 ”Thunder” proved this trend among 4th - 4.5th generation fighter aircraft.

 

Northrop Grumman (Northrop bought Grumman in 1994) initiated studies and basic design work on a respective New Lightweight Fighter (NLF) as a private venture in 1995. Work on the NLF started at a slow pace, as the company was busy with re-structuring.

The idea of an updated lightweight fighter was fueled by another source, too: Israel. In 1998 IAI started looking in the USA for a development partner for a new, light fighter that would replace its obsolete Kfir fleet and partly relieve its F-16 and F-15 fleet from interception tasks. The domestic project for that role, the IAI Lavi, had been stillborn, but lots of its avionics and research were still at hand and waited for an airframe for completion.

The new aircraft for the IAF was to be superior to the MiG-29, at least on par with the F-16C/D, but easier to maintain, smaller and overall cheaper. Since the performance profiles appeared to be similar to what Northrop Grumman was developing under the NLF label, the US company eventually teamed up with IAI in 2000 and both started the mutual project "Namer" (=נמר, “Tiger” in Hebrew), which eventually lead to the F-24 I for the IAF which kept its project name for service and to the USAF’s F-24A “Tigershark”.

 

The F-24, as the NLF, was based on the F-20 airframe, but outwardly showed only little family heritage, onle the forward fuselage around the cockpit reminds of the original F-5 design . Many aerodynamic details, e. g. the air intakes and air ducts, were taken over from the X-29, though, as the experimental aircraft and its components had been developed for extreme maneuvers and extra high agility. Nevertheless, the X-29's forward-swept wing was considered to be too exotic and fragile for a true service aircraft, but the F-24 was to feature an Active Aeroelastic Wing (AAW) system.

 

AAW Technology integrates wing aerodynamics, controls, and structure to harness and control wing aeroelastic twist at high speeds and dynamic pressures. By using multiple leading and trailing edge controls like "aerodynamic tabs", subtle amounts of aeroelastic twist can be controlled to provide large amounts of wing control power, while minimizing maneuver air loads at high wing strain conditions or aerodynamic drag at low wing strain conditions. This system was initially tested on the X-29 and later on the X-53 research aircraft, a modified F-18, until 2006.

 

Both USAF and IAF versions feature this state-of-the-art aerodynamic technology, but it is uncertain if other customers will receive it. While details concerning the F-24's system have not been published yet, it is assumed that its AAW is so effective that canard foreplanes could be omitted without sacrificing lift and maneuverability, and that drag is effectively minimized as the wing profile can be adjusted according to the aircraft’s speed, altitude, payload and mission – much like a VG wing, but without its clumsy and heavy swiveling mechanism which has to bear high g forces. As a result, the F-24 is, compared to the F-20, which could carry an external payload of about 3.5 tons, rumored to be able to carry up to 5 tons of ordnance.

 

The delta wing shape proved to be a perfect choice for the required surface and flap actuators inside of the wings, and it would also offer a very good compromise between lift and drag for a wide range of performance. Anyway, there was one price to pay: in order to keep the wing profile thin and simple, the F-24’s landing gear retracts into the lower fuselage, leaving the aircraft with a relatively narrow track.

 

Another major design factor for the outstanding performance of this rather small aircraft was weight reduction and structural integrity – combined with simplicity, ruggedness and a modular construction which would allow later upgrades. Instead of “going big” and expensive, the new F-24 was to create its performance through dedicated loss of weight, which was in some part also a compensation for the AAW system in the wings and its periphery.

 

Weight was saved wherever possible, e .g. a newly developed, lightweight M199A1 gatling gun. This 20mm cannon is a three-barreled, heavily modified version of the already “stripped” M61A2 gun in the USAF’s current F-18E and F-22. One of the novel features is a pneumatic drive instead of the traditional electric mechanism, what not only saves weight but also improves trigger response. The new gun weighs only a mere 65kg (the six-barreled M61A2 weighs 92kg, the original M61A1 112 kg), but still reaches a burst rate of fire of 1.800 RPM (about 800 RPM under cyclic fire, standard practice is to fire the cannon in 30 to 50-round bursts, though) and a muzzle velocity of 1.050 metres per second (3,450 ft/s) with a PGU-28/B round.

 

While the F-16 was and is still made from 80% aluminum alloys and only from 3% composites, the F-24 makes major use of carbon fiber and other lightweight materials, which make up about 40% of the aircraft’s structure, plus an increased share of Titanium and Magnesium alloys. As a consequence and through many other weight-saving measures like keeping stealth capabilities to a minimum (even though RAM was deliberately used and many details designed to have a natural low radar signature, resulting in modest radar cross-section (RCS) reductions), a single, relatively small engine, a fuel-efficient F404-GE-402 turbofan, is enough to make the F-24 a fast and very agile aircraft, coupled with a good range. The F-24’s thrust/weight ratio is considerably higher than 1, and later versions with a vectored thrust nozzle (see below) will take this level of agility even further – with the pilot becoming the limiting factor for the aircraft’s performance.

 

USAF and IAF F-24s are outfitted with Northrop Grumman's AN/APG-80 Active Electronically Scanned Array (AESA) radar, also used in the F-16 Block 60 aircraft. Other customers might only receive the AN/APG-68, making the F-24 comparable to the F-16C/D.

 

The first prototype, the YF-24, flew on 8th of March 2008, followed by two more aircraft plus a static airframe until summer 2010. In early 2011 the USAF placed an initial order of 101 aircraft (probably also to stir export sales – the earlier lightweight fighters from Northrop suffered from the fact that the manufacturer’s country would not use the aircraft in its own forces). These initial aircraft will replace older F-16 in the interceptor role, or free them for fighter bomber tasks. The USN and USMC also showed interest in the aircraft for their aggressor squadrons, for dissimilar air combat training. A two-seater, called the F-24B, is supposed to follow soon, too, and a later version for 2020 onwards, tentatively designated F-24C, is to feature an even stronger F404 engine and a 3D vectoring nozzle.

 

Israel is going to produce its own version domestically from late 2014 on, which will exclusively be used by the IAF. These aircraft will be outfitted with different avionics, built by Elta in Israel, and cater to national requirements which focus more on multi-purpose service, while the USAF focusses with its F-24A on aerial combat and interception tasks.

 

International interest for the F-24A is already there: in late 2013 Grumman stated that initial talks have been made with various countries, and potential export candidates from 2015 on are Taiwan, Singapore, Thailand, Finland, Norway, Australia and Japan.

  

General F-24A characteristics:

Crew: 1 pilot

Length: 47 ft 4 in (14.4 m)

Wingspan: 27 ft 11.9 in / 8.53 m; with wingtip missiles (26 ft 8 in/ 8.13 m; without wingtip missiles)

Height: 13 ft 10 in (4.20 m)

Wing area: 36.55 m² (392 ft²)

Empty weight: 13.150 lb (5.090 kg)

Loaded weight: 15.480 lb (6.830 kg)

Max. take-off weight: 27.530 lb (12.500 kg)

 

Powerplant:

1× General Electric F404-GE-402 turbofan with a dry thrust of 11,000 lbf (48.9 kN) and 17,750 lbf (79.2 kN) with afterburner

 

Performance

Maximum speed: Mach 2+

Combat radius: 300 nmi (345 mi, 556 km); for hi-lo-hi mission with 2 × 330 US gal (1,250 L) drop tanks

Ferry range: 1,490 nmi (1715 mi, 2759 km); with 3 × 330 US gal (1,250 L) drop tanks

Service ceiling: 55,000 ft (16,800 m)

Rate of climb: 52,800 ft/min (255 m/s)

Wing loading: 70.0 lb/ft² (342 kg/m²)

Thrust/weight: 1.09 (1.35 with loaded weight & 50% fuel)

 

Armament

1× 20 mm (0.787 in) M199A1 3-barreled Gatling cannon in the lower fuselage with 400 RPG

Eleven external hardpoints (two wingtip tails, six underwing hardpoints, three underfuselage hardpoints) and a total capacity of 11.000 lb (4.994 kg) of missiles (incl. AIM 9 Sidewinder and AIM 120 AMRAAM), bombs, rockets, ECM pods and drop tanks for extended range.

  

The kit and its assembly:

A spontaneous project. This major kitbash was inspired by fellow user nighthunter at whatifmodelers.com, who came up with a profile of a mashed-up US fighter, created “out of boredom”. The original idea was called F-21C, and it was to be a domestic successor to the IAI Kfirs which had been used by the US as aggressor aircraft in USN and USMC service for a few years.

 

As a weird(?) coincidence I had many of the necessary ingredients for this fictional aircraft in store, even though some parts and details were later changed. This model here is an interpretation of the original design. The idea was spun further, and the available parts that finally went into the model also had some influence on design and background.

I thank nighthunter for sharing the early ideas, inviting me to take the design to the hardware stage (sort of…) and adapting my feedback into new design sketches, too, which, in return, inspired the model building process.

 

Well, what went into this thing? To cook up a F-24 à la Dizzyfugu you just need (all in 1:72):

● Fuselage from a Hasegawa X-29, including the cockpit and the landing gear

● Fin and nose cone from an Italeri F-16A

● Inner wings from a (vintage) Hasegawa MiG-21F

● Outer wings from a F-4 (probably a J, Hasegawa or Fujimi)

 

The wing construction deviates from nighthunter’s original idea. The favorite ingredients would have been F-16XL or simple Mirage III wings, but I found the composite wing to be more attractive and “different”. The big F-16XL wings, despite their benefit of a unique shape, might also have created scale/size problems with a F-20 style fuselage? So I built hybrid wings: The MiG-21 landing gear wells were filled with putty and the F-4 outer wings simply glued onto the MiG inner wing sections, which were simply cut down in span. It sounds like an unlikely combo, but these parts fit together almost perfectly! In order to hide the F-4 origins I modified them to carry wingtip launch rails, though, which were also part of nighthunter’s original design.

 

The AAW technology detail mentioned in the background came in handy as it explains the complicated wing shape and the fact that the landing gear retracts into the fuselage, not into the wings, which would have been more plausible… Anyway, there’s still room for a simpler export version, with Mirage III or Kfir C.2/7 wings, and maybe canards?

 

Using the X-29 as basis also made fitting the new wings onto the area-ruled fuselage pretty easy, as I could use the wing root parts from the X-29 to bridge the gap. The original, forward-swept wings were just cut away, and the remains used as consoles for the new hybrid delta wings. Took some SERIOUS putty work, but the result is IMHO fine.

 

The bigger/square X-29 air intakes were taken over, and they change the look of the aircraft, making it look less F-5-ish than a true F-20 fuselage. For the same reason I kept the large fairing at the fin base, combining it with a bigger F-16 tail, though, as a counter-balance to the new, bigger wings. Again, the F-16 fin was/is part of nighthunter’s idea, so the model stays true to the original concept.

 

For the same reason I omitted the original X-29 nose, which is rather pointy, sports vanes and a large sensor boom. The F-16 nose was a plausible choice, as the AN/APG-80 is also carried by late Fighting Falcons, and its shape fits well, too.

 

All around the hull, some small details like radar warning sensors, pitots and air scoops were added. Not really necessary, but such thing add IMHO to the overall impression of such a fictional aircraft beyond the prototype stage.

 

Cockpit and landing gear were taken OOB, I just added a pilot figure and slightly modified the seat.

 

The ordnance was puzzled together from the scrap box, the AIM-9Ls come from the same F-4 kit which donated its outer wings, the AIM-120s come from an Italeri NATO weapons kit. The drop tanks belong to an F-16.

  

Painting and markings:

At first I considered an F-24I in IAF markings, or even a Japanese aircraft, but then reverted to one of nighthunter’s initial, simple ideas: an USAF aircraft in the “Hill II” paint scheme (F-16 style), made up from three shades of gray (FS 36118, 36270 and 36375) with low-viz markings and stencils. Dutch/Turkish NF-5A/Bs in the “Hill II” scheme were used as design benchmarks, too. It’s a simple livery, but on this delta wing aircraft it looks pretty interesting. I used enamels, what I had at hand: Humbrol 127 and 126, and Modelmaster's 1723.

 

A light black ink wash was applied, in order to em,phasize the engraved panel lines, in contrast to that, panels were manually highlighted through dry-brushed, lighter shades of gray (Humbrol 27, 166 and 167).

 

“Hill II” also adds to a generic, realistic touch for this whif. Doing an exotic air force thing is rather easy, but creating a convincing whif for a huge military machinery like the USAF’s takes more subtlety, I think.

 

The cockpit was painted in medium Gray (Dark Gull Grey, FS 36231, Humbrol 140), as well as the radome. The landing gear and the air intakes were painted white. The radome was painted with Revell 47 and dry-brushed with Humbrol 140.

 

Decals were puzzled together from various USAF aircraft, including sheets from an Airfix F-117, an Italeri F-15E and even an Academy OV-10D.

  

Tadah: a hardware tribute to an idea, born from boredom - and the aircraft does not look even bad at all? What I wanted to achieve was to make the F-24 neither look like a F-20, nor a Saab Gripen clone, as the latter comes close in overall shape, size and design.

During Compatibility and Integration Tests ending August 30, 2013, Lockheed Martin’s GPS III Non-flight Satellite Testbed (GNST) – a full-sized, functional satellite prototype currently residing at Cape Canaveral Air Force Station (CCAFS) – proved that it could connect with and receive commands from Raytheon’s Launch and Check Out System, part of the next-generation Operational Control System (OCX) that supports the satellite and mitigates risks prior to launch. The GNST was delivered (pictured) to CCAF in July so that facilities and pre-launch activities could be tested, further reducing risk and gaining efficiencies, prior the first GPS III flight satellite’s expected delivery to the U.S. Air Force in 2014 and launch in 2015.

Tucked away in a corner of Doncaster Works receiving attention to its troublesome power unit

A colourful history started when it was new as D1628 to Toton,

After a mishap at Peterborough in September 1972,emerged from Crewe works in January 1977 as 47601 as a testbed for the class 56.

Returned to Crewe in 1980 emerging as 47901 carrying the Ruston Paxman engine proposed for the class 58.

Its career came to an end in March 1990 as 47901,withdrawn from Cardiff Canton with bogie defects.

Made the long journey to MC Metals for disposal,being cut up February 1992.

22nd September 2013., RCAF Museum, Trenton, Ontario, Canada

 

Introduced by Boeing in 1959, the 720 is a smaller capacity, lighter, medium range variant of the 707, one of the most successful airliners of the 20th century. C-FETB is the 720 flying test bed operated by Pratt & Whitney Canada until 2010. One of 154 model 720s manufactured by Boeing between 1959 and 1967, C-FETB is the single remaining operational 720 in the world. On May 9, 2012 the aircraft will make its final flight, traveling from Saint-Hubert to CFB Trenton – the last flight ever of a 720.

 

Eager to preserve this historically significant test bed, Pratt & Whitney Canada (PWC) and the Canada Aviation and Space Museum (CASM) came to an agreement that will see the 720 go on indefinite loan to the National Air Force Museum of Canada, in Trenton, Ontario.

 

Aircraft History

 

The Model 720-023B (construction number 18024) is the 177th Model 707-type airplane made by Boeing Airplane. Rolled out on October 28th, 1960, the airplane, registered as N7538A, flew on January 14th, 1961. It was delivered to American Airlines on February 3rd. This airline operated N7538A until August 1971, when it was put in storage in Tulsa, Oklahoma.

 

Middle East Airlines (MEA), the largest airline in Lebanon, bought the airplane on September 25th, 1971. Re-registered as OD-AFQ, the airplane was delivered to its new owner on September 30th. Like many, if not most MEA airplanes, OD-AFQ was forced to stay away from its main base in Beirut when Israel invaded Lebanon, in June 1982, and occupied a good part of the country until 1985. Based at Orly, an airport near Paris, the airplane occasionally flew passengers for Air France and Air Inter, another French airline.

 

Pratt & Whitney Canada (PWC) bought the Model 720B in December 1985 and re-registered it as C-FETB (FETB as in Flying Experimental Test Bed) on January 10th, 1986. A series of modification were made after this date.

 

C-FETB did its flight acceptance flight on October 9th, 1986. A PWC crew flew the airplane across the Atlantic on October 12th.

 

Known internally as FTB1 (Flying test bed 1), C-FETB was thoroughly modified for its new role between October 1986 and January 1988.

 

It was equipped to test a variety of engines, for example:

 

A large turbofan could take the place of the inside / inner engine underneath the right / starboard wing.

A small turbofan could be mounted on the right / starboard side of the forward fuselage.

A turboprop could be mounted in the nose.

 

The following engine types were tested on C-FETB:

 

the International Aero Engines (IAE) V2500 turbofan

the Pratt & Whitney Canada JT15D turbofan

the Pratt & Whitney Canada PW300 turbofan

the Pratt & Whitney Canada PW500 turbofan

the Pratt & Whitney Canada PW600 turbofan

the Pratt & Whitney Canada PT6 turboprop

the Pratt & Whitney Canada PW100 turboprop

 

Once the fastest production car in the world, the Jaguar XK120 was Jaguar's first new product following the end of the war, being designed in those dark final days of the conflict and being developed over the next three years, making its début in 1948.

 

The XK120 was launched in open two-seater form at the 1948 London Motor Show as a testbed and show car for the new Jaguar XK engine. The display car was the first prototype, chassis number 670001. It looked almost identical to the production cars except that the straight outer pillars of its windscreen would be curved on the production version. The roadster caused a sensation, which persuaded Jaguar founder and design boss William Lyons to put it into production.

 

Beginning in 1948, the first 242 cars wore wood-framed open 2-seater bodies with aluminium panels. Production switched to the 112lb heavier all-steel in early 1950. The "120" in the name referred to the aluminium car's 120 mph top speed, which made it the world's fastest production car at the time of its launch. Engine models ranged from a 160bhp DOHC Straight-6 Double SU H6 low end model, to the fastest version which was powered by a 210bhp DOHC Straight-6 Double SU H8, giving the car a top speed of 124mph, which in 1949 was a spectacular feat when compared to the Austins and Morris' of the time.

 

On 30 May 1949, on the empty Ostend-Jabbeke motorway in Belgium, a prototype XK120 timed by the officials of the Royal Automobile Club of Belgium achieved an average of runs in opposing directions of 132.6 mph with the windscreen replaced by just one small aeroscreen and a catalogued alternative top gear ratio, and 135 mph with a passenger-side tonneau cover in place. In 1950 and 1951, at a banked oval track in France, XK120 roadsters averaged over 100 mph for 24 hours and over 130 mph for an hour, and in 1952 a fixed-head coupé took numerous world records for speed and distance when it averaged 100 mph for a week.

 

The Motor magazine road-tested an XK120 roadster in November 1949. This pre-production car, chassis number 670001, road-registered as HKV 455, was the first prototype built. It was also the 1948 London Motor Show display model, and had been driven by Prince Bira in the 1949 Silverstone Production Car Race. The magazine reported a top speed of 124.6 mph, acceleration from 0–60 mph in 10.0 seconds and fuel consumption of 19.8 miles per imperial gallon. The car as tested cost £1263 including taxes.

 

In 1949 the first production roadster, chassis number 670003, was delivered to famous actor Clark Gable.

 

The XK120 was ultimately available in two open versions, first as an open 2-seater described in the US market as the roadster, then also as a drophead coupé from 1953; and also as a closed, or fixed head coupé from 1951.

 

Production of the car ended in 1954 after 12,055 examples were constructed, being replaced by the Jaguar XK140. Today you'd be hard pressed to find XK120's on a regular basis, but if you attend car shows like me you'd be likely to find at least one show up.

 

Most notably though, the car returned to the centre stage of modern motoring through a spectacularly organised and choreographed race between the presenters of Top Gear on their Race to the North, a competition set in a hypothetical 1949 between the primary modes of transport at the time, with James May in the Jaguar XK120, Richard Hammond on a Vincent Blackshadow motorbike, and Jeremy Clarkson on the rebuilt Peppercorn A1 Pacific number 60163 'Tornado'.

DISCLAIMER

Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!

 

Some background:

The Northrop Grumman-IAI F-24 is the latest reincarnation of the USAF "Lightweight Fighter Program" which dates back to the 1950ies and started with the development of Northrop's F-5 "Freedom Fighter".

 

The 1st generation F-5 became very successful in the export market and saw a long line of development, including the much more powerful F-5E "Tiger II" and the F-20 Tigershark (initially called F-5G). Northrop had high hopes for the F-20 in the international market; however, policy changes following Ronald Reagan's election meant the F-20 had to compete for sales against aircraft like the F-16, the USAF's latest fighter design (which was politically favored). The F-20 development program was eventually abandoned in 1986 after three prototypes had been built and a fourth partially completed.

 

But this was not the end for Northrop’s Lightweight Fighter. In the early 1980s, two X-29As experimental aircraft were built by Grumman from two existing Northrop F-5A Freedom Fighter airframes. The Grumman X-29 was a testbed for forward-swept wings, canard control surfaces, and other novel aircraft technologies. The aerodynamic instability of this arrangement increased agility but required the use of computerized fly-by-wire control. Composite materials were used to control the aeroelastic divergent twisting experienced by forward-swept wings, also reducing the weight. The NASA test program continued from 1984 to 1991 and the X-29s flew 242 times, gathering valuable data and breaking ground for new aerodynamic technologies of 4th and 5th generation fighters.

 

Even though no service aircraft directly evolved from the X-29, its innovative FBW system as well as the new material technologies also opened the door for an updated F-20 far beyond the 1990ies. It became clear that ever expensive and complex aircraft could not be the answer to modern, asymmetrical warfare in remote corners of the world, with exploding development costs and just a limited number of aircraft in service that could not generate true economies of scale, esp. when their state-of-the-art design would not permit any export.

Anyway, a global market for simpler fighter aircraft was there, as 1st generation F-16s as well as the worldwide, aging F-5E fleet and types of Soviet/Russian origin like the MiG-29 provided the need for a modern, yet light and economical jet fighter. Contemporary types like the Indian HAL Tejas, the Swedish Saab Gripen, the French Dassault Rafale and the Pakistani/Chinese FC-1/JF-17 ”Thunder” proved this trend among 4th - 4.5th generation fighter aircraft.

 

Northrop Grumman (Northrop bought Grumman in 1994) initiated studies and basic design work on a respective New Lightweight Fighter (NLF) as a private venture in 1995. Work on the NLF started at a slow pace, as the company was busy with re-structuring.

The idea of an updated lightweight fighter was fueled by another source, too: Israel. In 1998 IAI started looking in the USA for a development partner for a new, light fighter that would replace its obsolete Kfir fleet and partly relieve its F-16 and F-15 fleet from interception tasks. The domestic project for that role, the IAI Lavi, had been stillborn, but lots of its avionics and research were still at hand and waited for an airframe for completion.

The new aircraft for the IAF was to be superior to the MiG-29, at least on par with the F-16C/D, but easier to maintain, smaller and overall cheaper. Since the performance profiles appeared to be similar to what Northrop Grumman was developing under the NLF label, the US company eventually teamed up with IAI in 2000 and both started the mutual project "Namer" (=נמר, “Tiger” in Hebrew), which eventually lead to the F-24 I for the IAF which kept its project name for service and to the USAF’s F-24A “Tigershark”.

 

The F-24, as the NLF, was based on the F-20 airframe, but outwardly showed only little family heritage, onle the forward fuselage around the cockpit reminds of the original F-5 design . Many aerodynamic details, e. g. the air intakes and air ducts, were taken over from the X-29, though, as the experimental aircraft and its components had been developed for extreme maneuvers and extra high agility. Nevertheless, the X-29's forward-swept wing was considered to be too exotic and fragile for a true service aircraft, but the F-24 was to feature an Active Aeroelastic Wing (AAW) system.

 

AAW Technology integrates wing aerodynamics, controls, and structure to harness and control wing aeroelastic twist at high speeds and dynamic pressures. By using multiple leading and trailing edge controls like "aerodynamic tabs", subtle amounts of aeroelastic twist can be controlled to provide large amounts of wing control power, while minimizing maneuver air loads at high wing strain conditions or aerodynamic drag at low wing strain conditions. This system was initially tested on the X-29 and later on the X-53 research aircraft, a modified F-18, until 2006.

 

Both USAF and IAF versions feature this state-of-the-art aerodynamic technology, but it is uncertain if other customers will receive it. While details concerning the F-24's system have not been published yet, it is assumed that its AAW is so effective that canard foreplanes could be omitted without sacrificing lift and maneuverability, and that drag is effectively minimized as the wing profile can be adjusted according to the aircraft’s speed, altitude, payload and mission – much like a VG wing, but without its clumsy and heavy swiveling mechanism which has to bear high g forces. As a result, the F-24 is, compared to the F-20, which could carry an external payload of about 3.5 tons, rumored to be able to carry up to 5 tons of ordnance.

 

The delta wing shape proved to be a perfect choice for the required surface and flap actuators inside of the wings, and it would also offer a very good compromise between lift and drag for a wide range of performance. Anyway, there was one price to pay: in order to keep the wing profile thin and simple, the F-24’s landing gear retracts into the lower fuselage, leaving the aircraft with a relatively narrow track.

 

Another major design factor for the outstanding performance of this rather small aircraft was weight reduction and structural integrity – combined with simplicity, ruggedness and a modular construction which would allow later upgrades. Instead of “going big” and expensive, the new F-24 was to create its performance through dedicated loss of weight, which was in some part also a compensation for the AAW system in the wings and its periphery.

 

Weight was saved wherever possible, e .g. a newly developed, lightweight M199A1 gatling gun. This 20mm cannon is a three-barreled, heavily modified version of the already “stripped” M61A2 gun in the USAF’s current F-18E and F-22. One of the novel features is a pneumatic drive instead of the traditional electric mechanism, what not only saves weight but also improves trigger response. The new gun weighs only a mere 65kg (the six-barreled M61A2 weighs 92kg, the original M61A1 112 kg), but still reaches a burst rate of fire of 1.800 RPM (about 800 RPM under cyclic fire, standard practice is to fire the cannon in 30 to 50-round bursts, though) and a muzzle velocity of 1.050 metres per second (3,450 ft/s) with a PGU-28/B round.

 

While the F-16 was and is still made from 80% aluminum alloys and only from 3% composites, the F-24 makes major use of carbon fiber and other lightweight materials, which make up about 40% of the aircraft’s structure, plus an increased share of Titanium and Magnesium alloys. As a consequence and through many other weight-saving measures like keeping stealth capabilities to a minimum (even though RAM was deliberately used and many details designed to have a natural low radar signature, resulting in modest radar cross-section (RCS) reductions), a single, relatively small engine, a fuel-efficient F404-GE-402 turbofan, is enough to make the F-24 a fast and very agile aircraft, coupled with a good range. The F-24’s thrust/weight ratio is considerably higher than 1, and later versions with a vectored thrust nozzle (see below) will take this level of agility even further – with the pilot becoming the limiting factor for the aircraft’s performance.

 

USAF and IAF F-24s are outfitted with Northrop Grumman's AN/APG-80 Active Electronically Scanned Array (AESA) radar, also used in the F-16 Block 60 aircraft. Other customers might only receive the AN/APG-68, making the F-24 comparable to the F-16C/D.

 

The first prototype, the YF-24, flew on 8th of March 2008, followed by two more aircraft plus a static airframe until summer 2010. In early 2011 the USAF placed an initial order of 101 aircraft (probably also to stir export sales – the earlier lightweight fighters from Northrop suffered from the fact that the manufacturer’s country would not use the aircraft in its own forces). These initial aircraft will replace older F-16 in the interceptor role, or free them for fighter bomber tasks. The USN and USMC also showed interest in the aircraft for their aggressor squadrons, for dissimilar air combat training. A two-seater, called the F-24B, is supposed to follow soon, too, and a later version for 2020 onwards, tentatively designated F-24C, is to feature an even stronger F404 engine and a 3D vectoring nozzle.

 

Israel is going to produce its own version domestically from late 2014 on, which will exclusively be used by the IAF. These aircraft will be outfitted with different avionics, built by Elta in Israel, and cater to national requirements which focus more on multi-purpose service, while the USAF focusses with its F-24A on aerial combat and interception tasks.

 

International interest for the F-24A is already there: in late 2013 Grumman stated that initial talks have been made with various countries, and potential export candidates from 2015 on are Taiwan, Singapore, Thailand, Finland, Norway, Australia and Japan.

  

General F-24A characteristics:

Crew: 1 pilot

Length: 47 ft 4 in (14.4 m)

Wingspan: 27 ft 11.9 in / 8.53 m; with wingtip missiles (26 ft 8 in/ 8.13 m; without wingtip missiles)

Height: 13 ft 10 in (4.20 m)

Wing area: 36.55 m² (392 ft²)

Empty weight: 13.150 lb (5.090 kg)

Loaded weight: 15.480 lb (6.830 kg)

Max. take-off weight: 27.530 lb (12.500 kg)

 

Powerplant

1× General Electric F404-GE-402 turbofan with a dry thrust of 11,000 lbf (48.9 kN) and 17,750 lbf (79.2 kN) with afterburner

 

Performance

Maximum speed: Mach 2

Combat radius: 300 nmi (345 mi, 556 km); for hi-lo-hi mission with 2 × 330 US gal (1,250 L) drop tanks

Ferry range: 1,490 nmi (1715 mi, 2759 km); with 3 × 330 US gal (1,250 L) drop tanks

Service ceiling: 55,000 ft (16,800 m)

Rate of climb: 52,800 ft/min (255 m/s)

Wing loading: 70.0 lb/ft² (342 kg/m²)

Thrust/weight: 1.09 (1.35 with loaded weight & 50% fuel)

 

Armament

1× 20 mm (0.787 in) M199A1 3-barreled Gatling cannon in the lower fuselage with 400 RPG

Eleven external hardpoints (two wingtip tails, six underwing hardpoints, three underfuselage hardpoints) and a total capacity of 11.000 lb (4.994 kg) of missiles (incl. AIM 9 Sidewinder and AIM 120 AMRAAM), bombs, rockets, ECM pods and drop tanks for extended range.

  

The kit and its assembly:

A spontaneous project. This major kitbash was inspired by fellow user nighthunter at whatifmodelers.com, who came up with a profile of a mashed-up US fighter, created “out of boredom”. The original idea was called F-21C, and it was to be a domestic successor to the IAI Kfirs which had been used by the US as aggressor aircraft in USN and USMC service for a few years.

 

As a weird(?) coincidence I had many of the necessary ingredients for this fictional aircraft in store, even though some parts and details were later changed. This model here is an interpretation of the original design. The idea was spun further, and the available parts that finally went into the model also had some influence on design and background.

I thank nighthunter for sharing the early ideas, inviting me to take the design to the hardware stage (sort of…) and adapting my feedback into new design sketches, too, which, in return, inspired the model building process.

 

Well, what went into this thing? To cook up a F-24 à la Dizzyfugu you just need (all in 1:72):

● Fuselage from a Hasegawa X-29, including the cockpit and the landing gear

● Fin and nose cone from an Italeri F-16A

● Inner wings from a (vintage) Hasegawa MiG-21F

● Outer wings from a F-4 (probably a J, Hasegawa or Fujimi)

 

The wing construction deviates from nighthunter’s original idea. The favorite ingredients would have been F-16XL or simple Mirage III wings, but I found the composite wing to be more attractive and “different”. The big F-16XL wings, despite their benefit of a unique shape, might also have created scale/size problems with a F-20 style fuselage? So I built hybrid wings: The MiG-21 landing gear wells were filled with putty and the F-4 outer wings simply glued onto the MiG inner wing sections, which were simply cut down in span. It sounds like an unlikely combo, but these parts fit together almost perfectly! In order to hide the F-4 origins I modified them to carry wingtip launch rails, though, which were also part of nighthunter’s original design.

 

The AAW technology detail mentioned in the background came in handy as it explains the complicated wing shape and the fact that the landing gear retracts into the fuselage, not into the wings, which would have been more plausible… Anyway, there’s still room for a simpler export version, with Mirage III or Kfir C.2/7 wings, and maybe canards?

 

Using the X-29 as basis also made fitting the new wings onto the area-ruled fuselage pretty easy, as I could use the wing root parts from the X-29 to bridge the gap. The original, forward-swept wings were just cut away, and the remains used as consoles for the new hybrid delta wings. Took some SERIOUS putty work, but the result is IMHO fine.

 

The bigger/square X-29 air intakes were taken over, and they change the look of the aircraft, making it look less F-5-ish than a true F-20 fuselage. For the same reason I kept the large fairing at the fin base, combining it with a bigger F-16 tail, though, as a counter-balance to the new, bigger wings. Again, the F-16 fin was/is part of nighthunter’s idea, so the model stays true to the original concept.

 

For the same reason I omitted the original X-29 nose, which is rather pointy, sports vanes and a large sensor boom. The F-16 nose was a plausible choice, as the AN/APG-80 is also carried by late Fighting Falcons, and its shape fits well, too.

 

All around the hull, some small details like radar warning sensors, pitots and air scoops were added. Not really necessary, but such thing add IMHO to the overall impression of such a fictional aircraft beyond the prototype stage.

 

Cockpit and landing gear were taken OOB, I just added a pilot figure and slightly modified the seat.

 

The ordnance was puzzled together from the scrap box, the AIM-9Ls come from the same F-4 kit which donated its outer wings, the AIM-120s come from an Italeri NATO weapons kit. The drop tanks belong to an F-16.

  

Painting and markings:

At first I considered an F-24I in IAF markings, or even a Japanese aircraft, but then reverted to one of nighthunter’s initial, simple ideas: an USAF aircraft in the “Hill II” paint scheme (F-16 style), made up from three shades of gray (FS 36118, 36270 and 36375) with low-viz markings and stencils. Dutch/Turkish NF-5A/Bs in the “Hill II” scheme were used as design benchmarks, too. It’s a simple livery, but on this delta wing aircraft it looks pretty interesting. I used enamels, what I had at hand: Humbrol 127 and 126, and Modelmaster's 1723.

 

A light black ink wash was applied, in order to em,phasize the engraved panel lines, in contrast to that, panels were manually highlighted through dry-brushed, lighter shades of gray (Humbrol 27, 166 and 167).

 

“Hill II” also adds to a generic, realistic touch for this whif. Doing an exotic air force thing is rather easy, but creating a convincing whif for a huge military machinery like the USAF’s takes more subtlety, I think.

 

The cockpit was painted in medium Gray (Dark Gull Grey, FS 36231, Humbrol 140), as well as the radome. The landing gear and the air intakes were painted white. The radome was painted with Revell 47 and dry-brushed with Humbrol 140.

 

Decals were puzzled together from various USAF aircraft, including sheets from an Airfix F-117, an Italeri F-15E and even an Academy OV-10D.

  

Tadah: a hardware tribute to an idea, born from boredom - and the aircraft does not look even bad at all? What I wanted to achieve was to make the F-24 neither look like a F-20, nor a Saab Gripen clone, as the latter comes close in overall shape, size and design.

+++ DISCLAIMER +++

Nothing you see here is real, even though the model, the conversion or the presented background story might be based historical facts. BEWARE!

  

Some background:

In the aftermath of the Second World War, Sweden required a strong air defense, utilizing the newly developed jet propulsion technology. The original concept had been designed around a mostly straight wing, but after Swedish engineers had obtained German research data on swept-wing designs, the prototype was altered to incorporate a 25° sweep. In order to make the wing as thin as possible, Saab elected to locate the retractable undercarriage in the aircraft's fuselage rather than into the wings.

 

Extensive wind tunnel testing had also influenced aspects of the aircraft's aerodynamics, such as stability and trim across the aircraft's speed range. In order to test the design of the swept wing further and avoid any surprises, it was decided to modify a Saab Safir. It received the designation Saab 201 and a full-scale swept wing for a series of flight tests. The first 'final' sketches of the aircraft, incorporating the new information, were drawn in January 1946.

 

The originally envisioned powerplant for the new fighter type was the de Havilland Goblin turbojet engine. However, in December 1945, information on the newer and more powerful de Havilland Ghost engine became available. The new engine was deemed to be ideal for Saab's in-development aircraft, as not only did the Ghost engine had provisions for the use of a central circular air intake, the overall diameter of the engine was favorable for the planned fuselage dimensions, too. Thus, following negotiations between de Havilland and Saab, the Ghost engine was selected to power the type and built in license as the RM 2.

 

By February 1946 the main outline of the proposed aircraft had been clearly defined. In autumn 1946, following the resolution of all major questions of principal and the completion of the project specification, the Swedish Air Force formally ordered the completion of the design and that three prototype aircraft be produced, giving the proposed type the designation J 29. After a thorough test program, production of the type commenced in 1948 and, in May 1951, the first deliveries of operational production aircraft were received by F 13 Norrköping. The J 29 proved to be very successful and several variants and updates of the Tunnan were produced, including a dedicated reconnaissance variant, a two seat trainer and an all-weather fighter with an onboard radar

 

However, Sweden foresaw that there would soon be a need for a jet fighter that could intercept bombers at high altitude and also successfully engage fighters. During September 1949, the Swedish Air Force, via the Swedish Defence Material Administration, released a requirement for a cutting-edge interceptor aircraft that was envisioned to be capable of attacking hostile bomber aircraft in the transonic speed range. As released, this requirement specified a top speed of Mach speed 1.4 to 1.5. (1956, the specified speed was revised and raised to Mach 1.7-1.8, and eventually led to the Saab 35 Draken). With the barely supersonic Saab 32 Lansen just under development, and intended for different roles than being a nimble day fighter, the company searched for a way to either achieve supersonic flight through modifications of an existing type or at least gather sufficient data and develop and try the new technologies necessary to meet the 1949 requirements.

 

Since Sweden did not have a truly supersonic aircraft in its inventory (not even an experimental type), Saab decided to convert the Saab 29 into a supersonic testbed, with the outlook to develop an interim day fighter that could replace the various Tunnan fighter versions and support the new Lansen fleet until a fully capable Mach 1.5+ interceptor was ready for service. Even though the type was regarded as a pure experimental aircraft, the designation remained close to the J29 nomenclature in order to secure military funding for the project and to confuse eventual spies. Consequently, the P29 was initially presented as a new J29 version (hence the “G” suffix).

 

The P29G was based on a heavily modified production J29B airframe, which was built in two versions and only in two specimens. Work on the first airframe started in 1952, just when the first Saab 32 prototype made its maiden flight. The initial challenge consisted of integrating two relatively compact axial flow jet engines with afterburners into the fuselage, since the J29’s original RM2, even in its late afterburner variant, was not able to safely deliver the necessary thrust for the intended supersonic flight program. After long negotiations, Saab was able to procure a small number of Westinghouse J34-WE-42 turbojets from the USA, which delivered as a pair 40% more thrust than the original RM2B. The engines were only delivered under the restriction that they would exclusively be used in connection with the supersonic research program.

 

Through a thorough re-construction, the Saab team was able to mount the new engines into the lower rear fuselage, and, internally, the air intake duct had to be modified and forked behind the landing gear wells. Due to the significantly widened rear fuselage, the P29G became quickly nicknamed “Kurviga Tunnan” (= “Curvy Barrel”). Even though the widened rear fuselage increased the aircraft’s frontal cross section, the modified shape had the (unintended) effect of area ruling, a welcome side benefit which became apparent during the flight test and which largely promoted the P29G’s gain of top speed.

 

Another special and unique feature of the P29G was a special wing attachment system. It consisted of two strengthened, open box spars in the fuselage with additional attachment points along the wing roots, which allowed different wings to be switched with relatively little effort. However, due to this modification, the wing tanks (with a total capacity of 900l inside of the J29s standard wings) were lost and only 2.150l in the Saab 29’s standard fuselage tanks could be carried – but this was, for a research aircraft, not regarded as a major weakness, and compensated for the wing attachment system’s additional weight. The original wing-mounted pitots were replaced by a single, massive sensor boom attached to the aircraft’s nose above the air intake, slightly set-off to starboard in order to give the pilot an unobstructed view.

 

The first P29G's maiden flight, marked “Gul Urban” (Yellow U), took place in July 1955. The aircraft behaved normally, even though the center of gravity had markedly shifted backwards and the overall gain of weight made the aircraft slightly unstable along the longitudinal axis. During the initial, careful attempts to break the sound barrier, it soon became apparent that both the original wings as well as the original air intake shape limited the P29G's potential. In its original form, the P29G could only barely pass Mach 1 in level flight.

 

As a consequence, the second P29G, which had been under conversion from another J29B airframe since mid-1954, received more thorough modifications. The air intake was lengthened and widened, and in order to make it more effective at supersonic speed it received a sharp lip. Wind tunnel tests with the first machine led to a modified tail, too: the fin was now taller and further swept back, the stabilizer was moved to a higher position, resulting in a cruciform layout. The original single-piece stabilizer was furthermore replaced by a two-piece, all-moving construction with a 45° sweep and a thinner profile. This not only improved the aerodynamics at high speed, it also suppressed the longitudinal instability problem, even though this was never really cured.

 

Due to the even higher all-up weight of the new aircraft, the landing gear was reinforced and the 2nd P29G received an experimental suspension system on its main legs with higher spring travel, which was designed for operations on semi-prepared airfields. This system had actually been designed for the updated J29 fighters (esp. the A32B attack variant), but it was not introduced into series production or the Saab 29E/F conversion program. Despite these massive changes, the P29G designation was retained, and the second machine, carrying the tactical code “Röd Urban” (Red U), was quickly nicknamed “Karpen” (“Carp”), due to its characteristic new intake shape, the long fin and its stocky shape.

 

The second P29G was ready for flight tests in August 1956, just in time to support the Saab 35’s ongoing development – the aircraft, which was eventually built to meet (and exceed) the Swedish Air Force’s 1949 supersonic interceptor requirement. The modifications proved to be successful and the P29G was, fitted with a 60° sweep wing and in clean configuration, able to achieve a maximum speed of 1.367 km/h (849 mph) in level flight, a formidable achievement (vs. the 1,060 km/h (660 mph) of the late J29F and the 1200 km/h (745 mph) of the J32B interceptor) for the post WWII design.

Several wing shapes and profiles were tested, including sweep angles from 25° to 63° as well as different shapes and profiles. Even though the machines carried provisions for the J29’s standard armament, the 20 mm cannons were normally not mounted and replaced with sensors and recording equipment. However, both machines were temporarily fitted with one or two guns in order to analyze the effects of firing the weapons at supersonic speed. Underwing ordnance was also almost never carried. In some tests, though, light bombs or unguided missiles were carried and deployed, or podded cine cameras were carried.

 

While the second P29G was used for high speed trials, the first machine remained in its original guise and took over low speed handling tests. Thanks to the unique wing switch mechanism, the supersonic research program could be held within a very tight schedule and lasted until late 1959. Thereafter, the P29Gs’ potential was of little use anymore, and the engine use agreement with the USA put an end to further use of the two aircraft, so that both P29Gs were retired from service in 1960. The 1st machine, outfitted with standard J29F wings and stripped off of its engines, remained in use as an instructional air at Malmslätt air base 1969, while the second machine was mothballed. However, both airframes were eventually scrapped in 1970.

  

General characteristics:

Crew: 1

Length: 11.66 m (38 ft 2 in) fuselage only,

13,97 m (45 ft 9 in) with pitot boom

Wingspan: varied*; 11.0 m (36 ft 1 in) with standard 25° sweep wings,

10.00 m (32 ft 9 ¾ in) with experimental 45° wings

Height: 4.54m (14 ft 10 ½ in)

Wing area: varied*; 24.15 m² (260.0 ft²) with standard 25° sweep wings

22.5 m² (242.2 ft²) with experimental 45° wings

Empty weight: 5,220 kg (11,500 lb)

Max. takeoff weight: 8,510 kg (18,744 lb)

 

Powerplant:

2× Westinghouse J34-WE-42 turbojets, each rated at 3,400 lbf (15 kN) dry thrust

and 4,200 lbf (19 kN) with full afterburner

 

Performance:

Maximum speed: 1.367 km/h (849 mph) were achieved*

Range: 790 km (490 mi)

Service ceiling: up to 17,250 m (56,500 ft)*

Rate of climb: up to 45 m/s (8,850 ft/min)*

 

*Varying figures due to different tested wing configurations

 

Armament:

None installed; provisions for 4x 20mm Hispano Mark V autocannon in the lower front fuselage.

Depending on the mounted wing type, various external loads could be carried, including a wide range of light bombs, 75 mm (3 in) air-to-air rockets, 145 mm (5.8 in) anti-armor rockets, 150 mm (6 in) HE (high-explosive) rockets or 180 mm (7.2 in) HE anti-ship rockets. Due to the lack of complex wiring or fuel plumbing, no guided weapons or drop tanks could be mounted, though.

  

The kit and its assembly:

Sweden is a prolific whiffing territory, and the Saab 29 offers some interesting options. This highly modified Tunnan, which is actually rather a kitbashing than a mere model kit modification, is/was a submission to the “More or less engines” group build at whatifmodelers.com in summer 2019.

I actually had the idea of a two-engine J29 in the back of my mind for a long time, spawned by a resin conversion set for the Hasegawa B-47 Stratojet kit that came with new intakes and exhaust sections for the four engine pods. The single engine pod parts had been spent a long time ago, but the twin engine parts were still waiting for a good use. Could the exhaust fit under/into a Tunnan…?

I even had a Matchbox J29 stashed away for this experiment long ago, as well as some donor parts like the wings, and the GB eventually offered the right motivation to put those things together that no one would expect to work.

 

So I pulled out all the stuff and started – a rather straightforward affair. Work started with the fuselage, which was, together with the (very nice) cockpit assembled OOB at first, the nose filled with as much lead as possible and with the lower rear section cut away, so the B-47 resin jet nozzles would end up at the same position as the original RM2B exhaust. Due to the pen nib fairing between them, though, the profile of the modified tail became (visually) more massive, and I had to fill some gaps under the tail boom (with styrene sheet and putty). The twin engines also turned out to be wider than expected – I had hoped for straight flanks, but the fuselage shape ended up with considerable bulges behind the landing gear wells. These were created with parts from drop tank halves and blended into the rest of the lower hill with PSR work. In the same wake the area under the fin was sculpted and re-created, too.

 

At that point it became clear that I had to do more on the fuselage, esp. the front end, in order to keep the aircraft visually balance. A convenient solution became an F-100 air intake, which I grafted onto the nose instead of the original circular and round-lipped orifice – with its sharp lip the Super Sabre piece was even a plausible change! The fuselage shapes and diameters differed considerably, though, more PSR became necessary.

 

Next came the wings: I had already set apart a pair of trapezoid wings with a 45° sweep angle – these were left over from a PM Model Ta 183 conversion some time ago. With their odd shape and size they were a perfect match for my project, even more so due to the fact that I could keep the original J29 wing attachment points, I just had to shorten and modify the trailing edge area on the fuselage. The result was very conclusive.

 

With the new nose and the wings in place, the overall proportions became clearer: still tail-heavy, but not unpleasant. At this time I was also certain that I had to modify the tail surfaces. The fin was too small and did not have enough sweep for the overall look, and the stabilizer, with its thick profile, rounded edges and the single, continuous rudder did not look supersonic at all. What followed was a long search in the donor banks for suitable replacements, and I eventually came up with a MiG-15 fin (Hobby Boss) which was later clipped at the top for a less recognizable profile. The stabilizers were more challenging, though. My solution eventually became a pair of modified stabilizers from a Matchbox Buccaneer(!), attached to the MiG-15 fin.

 

The design problems did not stop here, though: the landing gear caused some more headaches. I wanted to keep the OOB parts, but especially the main legs would leave the aircraft with a very goofy look through a short wheelbase and a rear axis position too much forward. In an attempt to save the situation I attached swing arms to the OOB struts, moving the axis maybe 5mm backwards and widening the track by 2mm at the same time. Not much in total, but it helped (a little, even though the aircraft is still very tail-heavy)

 

As a final addition – since the original, wing-mounted pitots of the J29 were gone now and would not go well with the wing-switching idea – I gave the P29G a large, nose-mounted pitot and sensor boom, placed on top of the nose. This part come, like the air intake, from an F-100.

  

Painting and markings:

I tend to be conservative when it comes to liveries for what-if models, and the P29G is no exception. At first, I thought that this build could become an operational supersonic daylight interceptor (the J29G), so that I could give the model full military markings and maybe a camouflage paint scheme. However, this idea would not work: the potential real life window for such an aircraft, based on the Saab 29, would be very narrow. And aircraft development in the late Fifties made quantum leaps within a very short period of time: While the J29A entered service, work on the Mach 2 Saab 35 was already underway – nobody would have accepted (or needed) a Mach 1 fighter, based on late Forties technology, at that time anymore, and there was the all-weather Saab J32B around, too. The update program with new wings and a more powerful afterburner engine was all that could be done to exploit the Tunnan’s potential, resulting in the (real world’s) J29E and F variants.

 

I eventually decided that the J29G would only be a prototype/research aircraft, consequently called P29G, and through this decision I became more or less settled upon a NMF finish with some colorful markings. Consequently, the model was painted with various shades of metal colors, primarily Polished Aluminum Metallizer from Humbrol, but also with Humbrol 191 and Matt Aluminum Metallizer as well as ModelMaster Steel Metallizer. Around the exhaust section, I also used Revell 91 (Iron) and ModelMaster Exhaust Metallizer. Some single panels and details were painted with Revell 99 (Aluminum), and I also used generic decal material in silver to simulate some smaller access panels. Grey decal sheet was used to simulate covers for the cannon nozzles.

 

The cockpit interior was painted, according to Saab 29 standard, in a dark greenish-grey (Revell 67), and bluish grey was used inside of the landing gear wells (Revell 57). The pitot boom received black and white stripes.

 

For markings I let myself get inspired from the real world Saab 29 and 32 prototypes, which were all marked with a colored “U” tactical code on the fin and also on the front fuselage, simply meaning “Utverding” (= “Test”). I found four red decals, and I also gave the aircraft a yellow cheatline, lent from an Airfix F-86D decal sheet. The Swedish roundels come from a generic aftermarket sheet, most stencils were taken from the Revell OOB sheet and a Printscale J29 sheet.

 

Before the model was sealed with semi-gloss acrylic varnish from Italeri, some grinded graphite was rubbed onto the rear fuselage, adding a metallic shine and simulating exhaust stains.

 

A thorough conversion – this has rather evolved into a kitbashing than just a kit conversion: not much from the original Matchbox J29 has been left over. But I like the outcome, even though things developed gradually from the simple idea of changing the number of engines on the Tunnan. One thing led to another. The resulting aircraft looks quite plausible, even though I am not totally happy with the landing gear, which appears to be rather far forward, despite surgical measures to mend the situation. The Ta 183 wings are a very good match, though, and I cannot help but recognize a certain French look, maybe due to the cruciform tail and the oval air intake? The P29G could also, with Argentinian marking, have become a revised version of the FMA Pulqui II?

The 44 year old Rolls Royce 747-200 series testbed returning home to Tucson after a 1+ year assignment in Waco, TX.

 

Note the Trent 1000 Dreamliner engine in the number 2 position and the new Pearl 10X engine for the Dassault Falcon 10X added to its right wing.

Bright, neatly organized network cables connect the servers in the DETER testbed at the USC Information Sciences Insititue (ISI), in Marina Del Rey, CA.

+++ 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:

In the aftermath of the Second World War, Sweden required a strong air defense, utilizing the newly developed jet propulsion technology. The original concept had been designed around a mostly straight wing, but after Swedish engineers had obtained German research data on swept-wing designs, the prototype was altered to incorporate a 25° sweep. In order to make the wing as thin as possible, Saab elected to locate the retractable undercarriage in the aircraft's fuselage rather than into the wings.

 

Extensive wind tunnel testing had also influenced aspects of the aircraft's aerodynamics, such as stability and trim across the aircraft's speed range. In order to test the design of the swept wing further and avoid any surprises, it was decided to modify a Saab Safir. It received the designation Saab 201 and a full-scale swept wing for a series of flight tests. The first 'final' sketches of the aircraft, incorporating the new information, were drawn in January 1946.

 

The originally envisioned powerplant for the new fighter type was the de Havilland Goblin turbojet engine. However, in December 1945, information on the newer and more powerful de Havilland Ghost engine became available. The new engine was deemed to be ideal for Saab's in-development aircraft, as not only did the Ghost engine had provisions for the use of a central circular air intake, the overall diameter of the engine was favorable for the planned fuselage dimensions, too. Thus, following negotiations between de Havilland and Saab, the Ghost engine was selected to power the type and built in license as the RM 2.

 

By February 1946 the main outline of the proposed aircraft had been clearly defined. In autumn 1946, following the resolution of all major questions of principal and the completion of the project specification, the Swedish Air Force formally ordered the completion of the design and that three prototype aircraft be produced, giving the proposed type the designation J 29. After a thorough test program, production of the type commenced in 1948 and, in May 1951, the first deliveries of operational production aircraft were received by F 13 Norrköping. The J 29 proved to be very successful and several variants and updates of the Tunnan were produced, including a dedicated reconnaissance variant, a two seat trainer and an all-weather fighter with an onboard radar

 

However, Sweden foresaw that there would soon be a need for a jet fighter that could intercept bombers at high altitude and also successfully engage fighters. During September 1949, the Swedish Air Force, via the Swedish Defence Material Administration, released a requirement for a cutting-edge interceptor aircraft that was envisioned to be capable of attacking hostile bomber aircraft in the transonic speed range. As released, this requirement specified a top speed of Mach speed 1.4 to 1.5. (1956, the specified speed was revised and raised to Mach 1.7-1.8, and eventually led to the Saab 35 Draken). With the barely supersonic Saab 32 Lansen just under development, and intended for different roles than being a nimble day fighter, the company searched for a way to either achieve supersonic flight through modifications of an existing type or at least gather sufficient data and develop and try the new technologies necessary to meet the 1949 requirements.

 

Since Sweden did not have a truly supersonic aircraft in its inventory (not even an experimental type), Saab decided to convert the Saab 29 into a supersonic testbed, with the outlook to develop an interim day fighter that could replace the various Tunnan fighter versions and support the new Lansen fleet until a fully capable Mach 1.5+ interceptor was ready for service. Even though the type was regarded as a pure experimental aircraft, the designation remained close to the J29 nomenclature in order to secure military funding for the project and to confuse eventual spies. Consequently, the P29 was initially presented as a new J29 version (hence the “G” suffix).

 

The P29G was based on a heavily modified production J29B airframe, which was built in two versions and only in two specimens. Work on the first airframe started in 1952, just when the first Saab 32 prototype made its maiden flight. The initial challenge consisted of integrating two relatively compact axial flow jet engines with afterburners into the fuselage, since the J29’s original RM2, even in its late afterburner variant, was not able to safely deliver the necessary thrust for the intended supersonic flight program. After long negotiations, Saab was able to procure a small number of Westinghouse J34-WE-42 turbojets from the USA, which delivered as a pair 40% more thrust than the original RM2B. The engines were only delivered under the restriction that they would exclusively be used in connection with the supersonic research program.

 

Through a thorough re-construction, the Saab team was able to mount the new engines into the lower rear fuselage, and, internally, the air intake duct had to be modified and forked behind the landing gear wells. Due to the significantly widened rear fuselage, the P29G became quickly nicknamed “Kurviga Tunnan” (= “Curvy Barrel”). Even though the widened rear fuselage increased the aircraft’s frontal cross section, the modified shape had the (unintended) effect of area ruling, a welcome side benefit which became apparent during the flight test and which largely promoted the P29G’s gain of top speed.

 

Another special and unique feature of the P29G was a special wing attachment system. It consisted of two strengthened, open box spars in the fuselage with additional attachment points along the wing roots, which allowed different wings to be switched with relatively little effort. However, due to this modification, the wing tanks (with a total capacity of 900l inside of the J29s standard wings) were lost and only 2.150l in the Saab 29’s standard fuselage tanks could be carried – but this was, for a research aircraft, not regarded as a major weakness, and compensated for the wing attachment system’s additional weight. The original wing-mounted pitots were replaced by a single, massive sensor boom attached to the aircraft’s nose above the air intake, slightly set-off to starboard in order to give the pilot an unobstructed view.

 

The first P29G's maiden flight, marked “Gul Urban” (Yellow U), took place in July 1955. The aircraft behaved normally, even though the center of gravity had markedly shifted backwards and the overall gain of weight made the aircraft slightly unstable along the longitudinal axis. During the initial, careful attempts to break the sound barrier, it soon became apparent that both the original wings as well as the original air intake shape limited the P29G's potential. In its original form, the P29G could only barely pass Mach 1 in level flight.

 

As a consequence, the second P29G, which had been under conversion from another J29B airframe since mid-1954, received more thorough modifications. The air intake was lengthened and widened, and in order to make it more effective at supersonic speed it received a sharp lip. Wind tunnel tests with the first machine led to a modified tail, too: the fin was now taller and further swept back, the stabilizer was moved to a higher position, resulting in a cruciform layout. The original single-piece stabilizer was furthermore replaced by a two-piece, all-moving construction with a 45° sweep and a thinner profile. This not only improved the aerodynamics at high speed, it also suppressed the longitudinal instability problem, even though this was never really cured.

 

Due to the even higher all-up weight of the new aircraft, the landing gear was reinforced and the 2nd P29G received an experimental suspension system on its main legs with higher spring travel, which was designed for operations on semi-prepared airfields. This system had actually been designed for the updated J29 fighters (esp. the A32B attack variant), but it was not introduced into series production or the Saab 29E/F conversion program. Despite these massive changes, the P29G designation was retained, and the second machine, carrying the tactical code “Röd Urban” (Red U), was quickly nicknamed “Karpen” (“Carp”), due to its characteristic new intake shape, the long fin and its stocky shape.

 

The second P29G was ready for flight tests in August 1956, just in time to support the Saab 35’s ongoing development – the aircraft, which was eventually built to meet (and exceed) the Swedish Air Force’s 1949 supersonic interceptor requirement. The modifications proved to be successful and the P29G was, fitted with a 60° sweep wing and in clean configuration, able to achieve a maximum speed of 1.367 km/h (849 mph) in level flight, a formidable achievement (vs. the 1,060 km/h (660 mph) of the late J29F and the 1200 km/h (745 mph) of the J32B interceptor) for the post WWII design.

Several wing shapes and profiles were tested, including sweep angles from 25° to 63° as well as different shapes and profiles. Even though the machines carried provisions for the J29’s standard armament, the 20 mm cannons were normally not mounted and replaced with sensors and recording equipment. However, both machines were temporarily fitted with one or two guns in order to analyze the effects of firing the weapons at supersonic speed. Underwing ordnance was also almost never carried. In some tests, though, light bombs or unguided missiles were carried and deployed, or podded cine cameras were carried.

 

While the second P29G was used for high speed trials, the first machine remained in its original guise and took over low speed handling tests. Thanks to the unique wing switch mechanism, the supersonic research program could be held within a very tight schedule and lasted until late 1959. Thereafter, the P29Gs’ potential was of little use anymore, and the engine use agreement with the USA put an end to further use of the two aircraft, so that both P29Gs were retired from service in 1960. The 1st machine, outfitted with standard J29F wings and stripped off of its engines, remained in use as an instructional air at Malmslätt air base 1969, while the second machine was mothballed. However, both airframes were eventually scrapped in 1970.

  

General characteristics:

Crew: 1

Length: 11.66 m (38 ft 2 in) fuselage only,

13,97 m (45 ft 9 in) with pitot boom

Wingspan: varied*; 11.0 m (36 ft 1 in) with standard 25° sweep wings,

10.00 m (32 ft 9 ¾ in) with experimental 45° wings

Height: 4.54m (14 ft 10 ½ in)

Wing area: varied*; 24.15 m² (260.0 ft²) with standard 25° sweep wings

22.5 m² (242.2 ft²) with experimental 45° wings

Empty weight: 5,220 kg (11,500 lb)

Max. takeoff weight: 8,510 kg (18,744 lb)

 

Powerplant:

2× Westinghouse J34-WE-42 turbojets, each rated at 3,400 lbf (15 kN) dry thrust

and 4,200 lbf (19 kN) with full afterburner

 

Performance:

Maximum speed: 1.367 km/h (849 mph) were achieved*

Range: 790 km (490 mi)

Service ceiling: up to 17,250 m (56,500 ft)*

Rate of climb: up to 45 m/s (8,850 ft/min)*

 

*Varying figures due to different tested wing configurations

 

Armament:

None installed; provisions for 4x 20mm Hispano Mark V autocannon in the lower front fuselage.

Depending on the mounted wing type, various external loads could be carried, including a wide range of light bombs, 75 mm (3 in) air-to-air rockets, 145 mm (5.8 in) anti-armor rockets, 150 mm (6 in) HE (high-explosive) rockets or 180 mm (7.2 in) HE anti-ship rockets. Due to the lack of complex wiring or fuel plumbing, no guided weapons or drop tanks could be mounted, though.

  

The kit and its assembly:

Sweden is a prolific whiffing territory, and the Saab 29 offers some interesting options. This highly modified Tunnan, which is actually rather a kitbashing than a mere model kit modification, is/was a submission to the “More or less engines” group build at whatifmodelers.com in summer 2019.

I actually had the idea of a two-engine J29 in the back of my mind for a long time, spawned by a resin conversion set for the Hasegawa B-47 Stratojet kit that came with new intakes and exhaust sections for the four engine pods. The single engine pod parts had been spent a long time ago, but the twin engine parts were still waiting for a good use. Could the exhaust fit under/into a Tunnan…?

I even had a Matchbox J29 stashed away for this experiment long ago, as well as some donor parts like the wings, and the GB eventually offered the right motivation to put those things together that no one would expect to work.

 

So I pulled out all the stuff and started – a rather straightforward affair. Work started with the fuselage, which was, together with the (very nice) cockpit assembled OOB at first, the nose filled with as much lead as possible and with the lower rear section cut away, so the B-47 resin jet nozzles would end up at the same position as the original RM2B exhaust. Due to the pen nib fairing between them, though, the profile of the modified tail became (visually) more massive, and I had to fill some gaps under the tail boom (with styrene sheet and putty). The twin engines also turned out to be wider than expected – I had hoped for straight flanks, but the fuselage shape ended up with considerable bulges behind the landing gear wells. These were created with parts from drop tank halves and blended into the rest of the lower hill with PSR work. In the same wake the area under the fin was sculpted and re-created, too.

 

At that point it became clear that I had to do more on the fuselage, esp. the front end, in order to keep the aircraft visually balance. A convenient solution became an F-100 air intake, which I grafted onto the nose instead of the original circular and round-lipped orifice – with its sharp lip the Super Sabre piece was even a plausible change! The fuselage shapes and diameters differed considerably, though, more PSR became necessary.

 

Next came the wings: I had already set apart a pair of trapezoid wings with a 45° sweep angle – these were left over from a PM Model Ta 183 conversion some time ago. With their odd shape and size they were a perfect match for my project, even more so due to the fact that I could keep the original J29 wing attachment points, I just had to shorten and modify the trailing edge area on the fuselage. The result was very conclusive.

 

With the new nose and the wings in place, the overall proportions became clearer: still tail-heavy, but not unpleasant. At this time I was also certain that I had to modify the tail surfaces. The fin was too small and did not have enough sweep for the overall look, and the stabilizer, with its thick profile, rounded edges and the single, continuous rudder did not look supersonic at all. What followed was a long search in the donor banks for suitable replacements, and I eventually came up with a MiG-15 fin (Hobby Boss) which was later clipped at the top for a less recognizable profile. The stabilizers were more challenging, though. My solution eventually became a pair of modified stabilizers from a Matchbox Buccaneer(!), attached to the MiG-15 fin.

 

The design problems did not stop here, though: the landing gear caused some more headaches. I wanted to keep the OOB parts, but especially the main legs would leave the aircraft with a very goofy look through a short wheelbase and a rear axis position too much forward. In an attempt to save the situation I attached swing arms to the OOB struts, moving the axis maybe 5mm backwards and widening the track by 2mm at the same time. Not much in total, but it helped (a little, even though the aircraft is still very tail-heavy)

 

As a final addition – since the original, wing-mounted pitots of the J29 were gone now and would not go well with the wing-switching idea – I gave the P29G a large, nose-mounted pitot and sensor boom, placed on top of the nose. This part come, like the air intake, from an F-100.

  

Painting and markings:

I tend to be conservative when it comes to liveries for what-if models, and the P29G is no exception. At first, I thought that this build could become an operational supersonic daylight interceptor (the J29G), so that I could give the model full military markings and maybe a camouflage paint scheme. However, this idea would not work: the potential real life window for such an aircraft, based on the Saab 29, would be very narrow. And aircraft development in the late Fifties made quantum leaps within a very short period of time: While the J29A entered service, work on the Mach 2 Saab 35 was already underway – nobody would have accepted (or needed) a Mach 1 fighter, based on late Forties technology, at that time anymore, and there was the all-weather Saab J32B around, too. The update program with new wings and a more powerful afterburner engine was all that could be done to exploit the Tunnan’s potential, resulting in the (real world’s) J29E and F variants.

 

I eventually decided that the J29G would only be a prototype/research aircraft, consequently called P29G, and through this decision I became more or less settled upon a NMF finish with some colorful markings. Consequently, the model was painted with various shades of metal colors, primarily Polished Aluminum Metallizer from Humbrol, but also with Humbrol 191 and Matt Aluminum Metallizer as well as ModelMaster Steel Metallizer. Around the exhaust section, I also used Revell 91 (Iron) and ModelMaster Exhaust Metallizer. Some single panels and details were painted with Revell 99 (Aluminum), and I also used generic decal material in silver to simulate some smaller access panels. Grey decal sheet was used to simulate covers for the cannon nozzles.

 

The cockpit interior was painted, according to Saab 29 standard, in a dark greenish-grey (Revell 67), and bluish grey was used inside of the landing gear wells (Revell 57). The pitot boom received black and white stripes.

 

For markings I let myself get inspired from the real world Saab 29 and 32 prototypes, which were all marked with a colored “U” tactical code on the fin and also on the front fuselage, simply meaning “Utverding” (= “Test”). I found four red decals, and I also gave the aircraft a yellow cheatline, lent from an Airfix F-86D decal sheet. The Swedish roundels come from a generic aftermarket sheet, most stencils were taken from the Revell OOB sheet and a Printscale J29 sheet.

 

Before the model was sealed with semi-gloss acrylic varnish from Italeri, some grinded graphite was rubbed onto the rear fuselage, adding a metallic shine and simulating exhaust stains.

 

A thorough conversion – this has rather evolved into a kitbashing than just a kit conversion: not much from the original Matchbox J29 has been left over. But I like the outcome, even though things developed gradually from the simple idea of changing the number of engines on the Tunnan. One thing led to another. The resulting aircraft looks quite plausible, even though I am not totally happy with the landing gear, which appears to be rather far forward, despite surgical measures to mend the situation. The Ta 183 wings are a very good match, though, and I cannot help but recognize a certain French look, maybe due to the cruciform tail and the oval air intake? The P29G could also, with Argentinian marking, have become a revised version of the FMA Pulqui II?

c/n 18835/408. At New York-JFK Airport. New to Pan Am as N404PA in 1965. To American Eagle in 1980 and reposessed in 1981 and stored at Marana. Converted to a flying testbed for the Air Force Systems Command by 1995. Operated by MIT Massachusetts Institute of Technology.

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The C111 was a series of experimental automobiles produced by Mercedes-Benz in the 1960s and 1970s. The company was experimenting with new engine technologies, including Wankel engines, Diesel engines, and turbochargers, and used the basic C111 platform as a testbed. Other experimental features included multi-link rear suspension, gullwing doors and a luxurious interior with leather trim and air conditioning.

 

The first version of the C111 was completed in 1969. The car used a fiberglass body shell and with a mid-mounted three-rotor direct fuel injected Wankel engine (code named M950F). The next C111 appeared in 1970. It used a four-rotor engine producing 370 hp (275 kW). The car reportedly could reach a speed of 290 km/h (180 mph).

 

The company decided not to adopt the Wankel engine and turned to Diesel experiments for the second and third C111. The C111-IID produced 190 horsepower (140 kW) and was based on the 240D 3.0 W115 model OM617 engine. The C111-III was powered by a 230 horsepower (170 kW) @ 4,500rpm straight-5 OM617 turbodiesel which broke nine diesel and gas speed records. With more aerodynamic bodywork that gave it an air drag coefficient of .19, the C111 eventually reached 200 mph (322 km/h) at Nardò in 1978, and averaged 14.7mpg@ 316 km/h (195.4 mph) over a 12-hour cruise. A later 500 hp (372 kW) 4.8 L twin KKK-turbocharged V8 version set another record, with an average lap-speed of 403.78 km/h (250.958 mph). It was achieved by Dr. Hans Leibold in 1 minute, 56.67 seconds on May 5, 1979.

 

Mercedes-Benz introduced the C112 at the Frankfurt Motor Show in 1991 as a to be produced sports car. The car used a mid-mounted 6.0 L V12 engine. But after accepting 700 deposits, the company decided not to proceed with production.

+++ 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:

In the aftermath of the Second World War, Sweden required a strong air defense, utilizing the newly developed jet propulsion technology. The original concept had been designed around a mostly straight wing, but after Swedish engineers had obtained German research data on swept-wing designs, the prototype was altered to incorporate a 25° sweep. In order to make the wing as thin as possible, Saab elected to locate the retractable undercarriage in the aircraft's fuselage rather than into the wings.

 

Extensive wind tunnel testing had also influenced aspects of the aircraft's aerodynamics, such as stability and trim across the aircraft's speed range. In order to test the design of the swept wing further and avoid any surprises, it was decided to modify a Saab Safir. It received the designation Saab 201 and a full-scale swept wing for a series of flight tests. The first 'final' sketches of the aircraft, incorporating the new information, were drawn in January 1946.

 

The originally envisioned powerplant for the new fighter type was the de Havilland Goblin turbojet engine. However, in December 1945, information on the newer and more powerful de Havilland Ghost engine became available. The new engine was deemed to be ideal for Saab's in-development aircraft, as not only did the Ghost engine had provisions for the use of a central circular air intake, the overall diameter of the engine was favorable for the planned fuselage dimensions, too. Thus, following negotiations between de Havilland and Saab, the Ghost engine was selected to power the type and built in license as the RM 2.

 

By February 1946 the main outline of the proposed aircraft had been clearly defined. In autumn 1946, following the resolution of all major questions of principal and the completion of the project specification, the Swedish Air Force formally ordered the completion of the design and that three prototype aircraft be produced, giving the proposed type the designation J 29. After a thorough test program, production of the type commenced in 1948 and, in May 1951, the first deliveries of operational production aircraft were received by F 13 Norrköping. The J 29 proved to be very successful and several variants and updates of the Tunnan were produced, including a dedicated reconnaissance variant, a two seat trainer and an all-weather fighter with an onboard radar

 

However, Sweden foresaw that there would soon be a need for a jet fighter that could intercept bombers at high altitude and also successfully engage fighters. During September 1949, the Swedish Air Force, via the Swedish Defence Material Administration, released a requirement for a cutting-edge interceptor aircraft that was envisioned to be capable of attacking hostile bomber aircraft in the transonic speed range. As released, this requirement specified a top speed of Mach speed 1.4 to 1.5. (1956, the specified speed was revised and raised to Mach 1.7-1.8, and eventually led to the Saab 35 Draken). With the barely supersonic Saab 32 Lansen just under development, and intended for different roles than being a nimble day fighter, the company searched for a way to either achieve supersonic flight through modifications of an existing type or at least gather sufficient data and develop and try the new technologies necessary to meet the 1949 requirements.

 

Since Sweden did not have a truly supersonic aircraft in its inventory (not even an experimental type), Saab decided to convert the Saab 29 into a supersonic testbed, with the outlook to develop an interim day fighter that could replace the various Tunnan fighter versions and support the new Lansen fleet until a fully capable Mach 1.5+ interceptor was ready for service. Even though the type was regarded as a pure experimental aircraft, the designation remained close to the J29 nomenclature in order to secure military funding for the project and to confuse eventual spies. Consequently, the P29 was initially presented as a new J29 version (hence the “G” suffix).

 

The P29G was based on a heavily modified production J29B airframe, which was built in two versions and only in two specimens. Work on the first airframe started in 1952, just when the first Saab 32 prototype made its maiden flight. The initial challenge consisted of integrating two relatively compact axial flow jet engines with afterburners into the fuselage, since the J29’s original RM2, even in its late afterburner variant, was not able to safely deliver the necessary thrust for the intended supersonic flight program. After long negotiations, Saab was able to procure a small number of Westinghouse J34-WE-42 turbojets from the USA, which delivered as a pair 40% more thrust than the original RM2B. The engines were only delivered under the restriction that they would exclusively be used in connection with the supersonic research program.

 

Through a thorough re-construction, the Saab team was able to mount the new engines into the lower rear fuselage, and, internally, the air intake duct had to be modified and forked behind the landing gear wells. Due to the significantly widened rear fuselage, the P29G became quickly nicknamed “Kurviga Tunnan” (= “Curvy Barrel”). Even though the widened rear fuselage increased the aircraft’s frontal cross section, the modified shape had the (unintended) effect of area ruling, a welcome side benefit which became apparent during the flight test and which largely promoted the P29G’s gain of top speed.

 

Another special and unique feature of the P29G was a special wing attachment system. It consisted of two strengthened, open box spars in the fuselage with additional attachment points along the wing roots, which allowed different wings to be switched with relatively little effort. However, due to this modification, the wing tanks (with a total capacity of 900l inside of the J29s standard wings) were lost and only 2.150l in the Saab 29’s standard fuselage tanks could be carried – but this was, for a research aircraft, not regarded as a major weakness, and compensated for the wing attachment system’s additional weight. The original wing-mounted pitots were replaced by a single, massive sensor boom attached to the aircraft’s nose above the air intake, slightly set-off to starboard in order to give the pilot an unobstructed view.

 

The first P29G's maiden flight, marked “Gul Urban” (Yellow U), took place in July 1955. The aircraft behaved normally, even though the center of gravity had markedly shifted backwards and the overall gain of weight made the aircraft slightly unstable along the longitudinal axis. During the initial, careful attempts to break the sound barrier, it soon became apparent that both the original wings as well as the original air intake shape limited the P29G's potential. In its original form, the P29G could only barely pass Mach 1 in level flight.

 

As a consequence, the second P29G, which had been under conversion from another J29B airframe since mid-1954, received more thorough modifications. The air intake was lengthened and widened, and in order to make it more effective at supersonic speed it received a sharp lip. Wind tunnel tests with the first machine led to a modified tail, too: the fin was now taller and further swept back, the stabilizer was moved to a higher position, resulting in a cruciform layout. The original single-piece stabilizer was furthermore replaced by a two-piece, all-moving construction with a 45° sweep and a thinner profile. This not only improved the aerodynamics at high speed, it also suppressed the longitudinal instability problem, even though this was never really cured.

 

Due to the even higher all-up weight of the new aircraft, the landing gear was reinforced and the 2nd P29G received an experimental suspension system on its main legs with higher spring travel, which was designed for operations on semi-prepared airfields. This system had actually been designed for the updated J29 fighters (esp. the A32B attack variant), but it was not introduced into series production or the Saab 29E/F conversion program. Despite these massive changes, the P29G designation was retained, and the second machine, carrying the tactical code “Röd Urban” (Red U), was quickly nicknamed “Karpen” (“Carp”), due to its characteristic new intake shape, the long fin and its stocky shape.

 

The second P29G was ready for flight tests in August 1956, just in time to support the Saab 35’s ongoing development – the aircraft, which was eventually built to meet (and exceed) the Swedish Air Force’s 1949 supersonic interceptor requirement. The modifications proved to be successful and the P29G was, fitted with a 60° sweep wing and in clean configuration, able to achieve a maximum speed of 1.367 km/h (849 mph) in level flight, a formidable achievement (vs. the 1,060 km/h (660 mph) of the late J29F and the 1200 km/h (745 mph) of the J32B interceptor) for the post WWII design.

Several wing shapes and profiles were tested, including sweep angles from 25° to 63° as well as different shapes and profiles. Even though the machines carried provisions for the J29’s standard armament, the 20 mm cannons were normally not mounted and replaced with sensors and recording equipment. However, both machines were temporarily fitted with one or two guns in order to analyze the effects of firing the weapons at supersonic speed. Underwing ordnance was also almost never carried. In some tests, though, light bombs or unguided missiles were carried and deployed, or podded cine cameras were carried.

 

While the second P29G was used for high speed trials, the first machine remained in its original guise and took over low speed handling tests. Thanks to the unique wing switch mechanism, the supersonic research program could be held within a very tight schedule and lasted until late 1959. Thereafter, the P29Gs’ potential was of little use anymore, and the engine use agreement with the USA put an end to further use of the two aircraft, so that both P29Gs were retired from service in 1960. The 1st machine, outfitted with standard J29F wings and stripped off of its engines, remained in use as an instructional air at Malmslätt air base 1969, while the second machine was mothballed. However, both airframes were eventually scrapped in 1970.

  

General characteristics:

Crew: 1

Length: 11.66 m (38 ft 2 in) fuselage only,

13,97 m (45 ft 9 in) with pitot boom

Wingspan: varied*; 11.0 m (36 ft 1 in) with standard 25° sweep wings,

10.00 m (32 ft 9 ¾ in) with experimental 45° wings

Height: 4.54m (14 ft 10 ½ in)

Wing area: varied*; 24.15 m² (260.0 ft²) with standard 25° sweep wings

22.5 m² (242.2 ft²) with experimental 45° wings

Empty weight: 5,220 kg (11,500 lb)

Max. takeoff weight: 8,510 kg (18,744 lb)

 

Powerplant:

2× Westinghouse J34-WE-42 turbojets, each rated at 3,400 lbf (15 kN) dry thrust

and 4,200 lbf (19 kN) with full afterburner

 

Performance:

Maximum speed: 1.367 km/h (849 mph) were achieved*

Range: 790 km (490 mi)

Service ceiling: up to 17,250 m (56,500 ft)*

Rate of climb: up to 45 m/s (8,850 ft/min)*

 

*Varying figures due to different tested wing configurations

 

Armament:

None installed; provisions for 4x 20mm Hispano Mark V autocannon in the lower front fuselage.

Depending on the mounted wing type, various external loads could be carried, including a wide range of light bombs, 75 mm (3 in) air-to-air rockets, 145 mm (5.8 in) anti-armor rockets, 150 mm (6 in) HE (high-explosive) rockets or 180 mm (7.2 in) HE anti-ship rockets. Due to the lack of complex wiring or fuel plumbing, no guided weapons or drop tanks could be mounted, though.

  

The kit and its assembly:

Sweden is a prolific whiffing territory, and the Saab 29 offers some interesting options. This highly modified Tunnan, which is actually rather a kitbashing than a mere model kit modification, is/was a submission to the “More or less engines” group build at whatifmodelers.com in summer 2019.

I actually had the idea of a two-engine J29 in the back of my mind for a long time, spawned by a resin conversion set for the Hasegawa B-47 Stratojet kit that came with new intakes and exhaust sections for the four engine pods. The single engine pod parts had been spent a long time ago, but the twin engine parts were still waiting for a good use. Could the exhaust fit under/into a Tunnan…?

I even had a Matchbox J29 stashed away for this experiment long ago, as well as some donor parts like the wings, and the GB eventually offered the right motivation to put those things together that no one would expect to work.

 

So I pulled out all the stuff and started – a rather straightforward affair. Work started with the fuselage, which was, together with the (very nice) cockpit assembled OOB at first, the nose filled with as much lead as possible and with the lower rear section cut away, so the B-47 resin jet nozzles would end up at the same position as the original RM2B exhaust. Due to the pen nib fairing between them, though, the profile of the modified tail became (visually) more massive, and I had to fill some gaps under the tail boom (with styrene sheet and putty). The twin engines also turned out to be wider than expected – I had hoped for straight flanks, but the fuselage shape ended up with considerable bulges behind the landing gear wells. These were created with parts from drop tank halves and blended into the rest of the lower hill with PSR work. In the same wake the area under the fin was sculpted and re-created, too.

 

At that point it became clear that I had to do more on the fuselage, esp. the front end, in order to keep the aircraft visually balance. A convenient solution became an F-100 air intake, which I grafted onto the nose instead of the original circular and round-lipped orifice – with its sharp lip the Super Sabre piece was even a plausible change! The fuselage shapes and diameters differed considerably, though, more PSR became necessary.

 

Next came the wings: I had already set apart a pair of trapezoid wings with a 45° sweep angle – these were left over from a PM Model Ta 183 conversion some time ago. With their odd shape and size they were a perfect match for my project, even more so due to the fact that I could keep the original J29 wing attachment points, I just had to shorten and modify the trailing edge area on the fuselage. The result was very conclusive.

 

With the new nose and the wings in place, the overall proportions became clearer: still tail-heavy, but not unpleasant. At this time I was also certain that I had to modify the tail surfaces. The fin was too small and did not have enough sweep for the overall look, and the stabilizer, with its thick profile, rounded edges and the single, continuous rudder did not look supersonic at all. What followed was a long search in the donor banks for suitable replacements, and I eventually came up with a MiG-15 fin (Hobby Boss) which was later clipped at the top for a less recognizable profile. The stabilizers were more challenging, though. My solution eventually became a pair of modified stabilizers from a Matchbox Buccaneer(!), attached to the MiG-15 fin.

 

The design problems did not stop here, though: the landing gear caused some more headaches. I wanted to keep the OOB parts, but especially the main legs would leave the aircraft with a very goofy look through a short wheelbase and a rear axis position too much forward. In an attempt to save the situation I attached swing arms to the OOB struts, moving the axis maybe 5mm backwards and widening the track by 2mm at the same time. Not much in total, but it helped (a little, even though the aircraft is still very tail-heavy)

 

As a final addition – since the original, wing-mounted pitots of the J29 were gone now and would not go well with the wing-switching idea – I gave the P29G a large, nose-mounted pitot and sensor boom, placed on top of the nose. This part come, like the air intake, from an F-100.

  

Painting and markings:

I tend to be conservative when it comes to liveries for what-if models, and the P29G is no exception. At first, I thought that this build could become an operational supersonic daylight interceptor (the J29G), so that I could give the model full military markings and maybe a camouflage paint scheme. However, this idea would not work: the potential real life window for such an aircraft, based on the Saab 29, would be very narrow. And aircraft development in the late Fifties made quantum leaps within a very short period of time: While the J29A entered service, work on the Mach 2 Saab 35 was already underway – nobody would have accepted (or needed) a Mach 1 fighter, based on late Forties technology, at that time anymore, and there was the all-weather Saab J32B around, too. The update program with new wings and a more powerful afterburner engine was all that could be done to exploit the Tunnan’s potential, resulting in the (real world’s) J29E and F variants.

 

I eventually decided that the J29G would only be a prototype/research aircraft, consequently called P29G, and through this decision I became more or less settled upon a NMF finish with some colorful markings. Consequently, the model was painted with various shades of metal colors, primarily Polished Aluminum Metallizer from Humbrol, but also with Humbrol 191 and Matt Aluminum Metallizer as well as ModelMaster Steel Metallizer. Around the exhaust section, I also used Revell 91 (Iron) and ModelMaster Exhaust Metallizer. Some single panels and details were painted with Revell 99 (Aluminum), and I also used generic decal material in silver to simulate some smaller access panels. Grey decal sheet was used to simulate covers for the cannon nozzles.

 

The cockpit interior was painted, according to Saab 29 standard, in a dark greenish-grey (Revell 67), and bluish grey was used inside of the landing gear wells (Revell 57). The pitot boom received black and white stripes.

 

For markings I let myself get inspired from the real world Saab 29 and 32 prototypes, which were all marked with a colored “U” tactical code on the fin and also on the front fuselage, simply meaning “Utverding” (= “Test”). I found four red decals, and I also gave the aircraft a yellow cheatline, lent from an Airfix F-86D decal sheet. The Swedish roundels come from a generic aftermarket sheet, most stencils were taken from the Revell OOB sheet and a Printscale J29 sheet.

 

Before the model was sealed with semi-gloss acrylic varnish from Italeri, some grinded graphite was rubbed onto the rear fuselage, adding a metallic shine and simulating exhaust stains.

 

A thorough conversion – this has rather evolved into a kitbashing than just a kit conversion: not much from the original Matchbox J29 has been left over. But I like the outcome, even though things developed gradually from the simple idea of changing the number of engines on the Tunnan. One thing led to another. The resulting aircraft looks quite plausible, even though I am not totally happy with the landing gear, which appears to be rather far forward, despite surgical measures to mend the situation. The Ta 183 wings are a very good match, though, and I cannot help but recognize a certain French look, maybe due to the cruciform tail and the oval air intake? The P29G could also, with Argentinian marking, have become a revised version of the FMA Pulqui II?

Reshade 0.18.1 Framework Extreme Eyecancer Mod Testbed 0.2B

 

Blackfire's mod + TOD + Reli2

Ini tweaks + POM enabled

 

Lite TOD, light shadows, nohud, dof %25-50, adjusted brightess, contrast and gamma + exposure. MSAA Disabled. SSAO enabled.

80º FoV,

 

Custom helmet mesh lens texture (reworked)

------

Framework Config

 

SweetFX

{ SMAA

Tonemap

Vibrance

Film Grain

Letterbox }

 

McFX

{ Fisheye CA }

 

GemFX

{ LensDirt

Ambient Light + ambient light controls for Bloom, Lens and vibrance + advanced eye adaptation }

 

& Improved performance again, render mode 8bit

  

+++ 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:

In the aftermath of the Second World War, Sweden required a strong air defense, utilizing the newly developed jet propulsion technology. The original concept had been designed around a mostly straight wing, but after Swedish engineers had obtained German research data on swept-wing designs, the prototype was altered to incorporate a 25° sweep. In order to make the wing as thin as possible, Saab elected to locate the retractable undercarriage in the aircraft's fuselage rather than into the wings.

 

Extensive wind tunnel testing had also influenced aspects of the aircraft's aerodynamics, such as stability and trim across the aircraft's speed range. In order to test the design of the swept wing further and avoid any surprises, it was decided to modify a Saab Safir. It received the designation Saab 201 and a full-scale swept wing for a series of flight tests. The first 'final' sketches of the aircraft, incorporating the new information, were drawn in January 1946.

 

The originally envisioned powerplant for the new fighter type was the de Havilland Goblin turbojet engine. However, in December 1945, information on the newer and more powerful de Havilland Ghost engine became available. The new engine was deemed to be ideal for Saab's in-development aircraft, as not only did the Ghost engine had provisions for the use of a central circular air intake, the overall diameter of the engine was favorable for the planned fuselage dimensions, too. Thus, following negotiations between de Havilland and Saab, the Ghost engine was selected to power the type and built in license as the RM 2.

 

By February 1946 the main outline of the proposed aircraft had been clearly defined. In autumn 1946, following the resolution of all major questions of principal and the completion of the project specification, the Swedish Air Force formally ordered the completion of the design and that three prototype aircraft be produced, giving the proposed type the designation J 29. After a thorough test program, production of the type commenced in 1948 and, in May 1951, the first deliveries of operational production aircraft were received by F 13 Norrköping. The J 29 proved to be very successful and several variants and updates of the Tunnan were produced, including a dedicated reconnaissance variant, a two seat trainer and an all-weather fighter with an onboard radar

 

However, Sweden foresaw that there would soon be a need for a jet fighter that could intercept bombers at high altitude and also successfully engage fighters. During September 1949, the Swedish Air Force, via the Swedish Defence Material Administration, released a requirement for a cutting-edge interceptor aircraft that was envisioned to be capable of attacking hostile bomber aircraft in the transonic speed range. As released, this requirement specified a top speed of Mach speed 1.4 to 1.5. (1956, the specified speed was revised and raised to Mach 1.7-1.8, and eventually led to the Saab 35 Draken). With the barely supersonic Saab 32 Lansen just under development, and intended for different roles than being a nimble day fighter, the company searched for a way to either achieve supersonic flight through modifications of an existing type or at least gather sufficient data and develop and try the new technologies necessary to meet the 1949 requirements.

 

Since Sweden did not have a truly supersonic aircraft in its inventory (not even an experimental type), Saab decided to convert the Saab 29 into a supersonic testbed, with the outlook to develop an interim day fighter that could replace the various Tunnan fighter versions and support the new Lansen fleet until a fully capable Mach 1.5+ interceptor was ready for service. Even though the type was regarded as a pure experimental aircraft, the designation remained close to the J29 nomenclature in order to secure military funding for the project and to confuse eventual spies. Consequently, the P29 was initially presented as a new J29 version (hence the “G” suffix).

 

The P29G was based on a heavily modified production J29B airframe, which was built in two versions and only in two specimens. Work on the first airframe started in 1952, just when the first Saab 32 prototype made its maiden flight. The initial challenge consisted of integrating two relatively compact axial flow jet engines with afterburners into the fuselage, since the J29’s original RM2, even in its late afterburner variant, was not able to safely deliver the necessary thrust for the intended supersonic flight program. After long negotiations, Saab was able to procure a small number of Westinghouse J34-WE-42 turbojets from the USA, which delivered as a pair 40% more thrust than the original RM2B. The engines were only delivered under the restriction that they would exclusively be used in connection with the supersonic research program.

 

Through a thorough re-construction, the Saab team was able to mount the new engines into the lower rear fuselage, and, internally, the air intake duct had to be modified and forked behind the landing gear wells. Due to the significantly widened rear fuselage, the P29G became quickly nicknamed “Kurviga Tunnan” (= “Curvy Barrel”). Even though the widened rear fuselage increased the aircraft’s frontal cross section, the modified shape had the (unintended) effect of area ruling, a welcome side benefit which became apparent during the flight test and which largely promoted the P29G’s gain of top speed.

 

Another special and unique feature of the P29G was a special wing attachment system. It consisted of two strengthened, open box spars in the fuselage with additional attachment points along the wing roots, which allowed different wings to be switched with relatively little effort. However, due to this modification, the wing tanks (with a total capacity of 900l inside of the J29s standard wings) were lost and only 2.150l in the Saab 29’s standard fuselage tanks could be carried – but this was, for a research aircraft, not regarded as a major weakness, and compensated for the wing attachment system’s additional weight. The original wing-mounted pitots were replaced by a single, massive sensor boom attached to the aircraft’s nose above the air intake, slightly set-off to starboard in order to give the pilot an unobstructed view.

 

The first P29G's maiden flight, marked “Gul Urban” (Yellow U), took place in July 1955. The aircraft behaved normally, even though the center of gravity had markedly shifted backwards and the overall gain of weight made the aircraft slightly unstable along the longitudinal axis. During the initial, careful attempts to break the sound barrier, it soon became apparent that both the original wings as well as the original air intake shape limited the P29G's potential. In its original form, the P29G could only barely pass Mach 1 in level flight.

 

As a consequence, the second P29G, which had been under conversion from another J29B airframe since mid-1954, received more thorough modifications. The air intake was lengthened and widened, and in order to make it more effective at supersonic speed it received a sharp lip. Wind tunnel tests with the first machine led to a modified tail, too: the fin was now taller and further swept back, the stabilizer was moved to a higher position, resulting in a cruciform layout. The original single-piece stabilizer was furthermore replaced by a two-piece, all-moving construction with a 45° sweep and a thinner profile. This not only improved the aerodynamics at high speed, it also suppressed the longitudinal instability problem, even though this was never really cured.

 

Due to the even higher all-up weight of the new aircraft, the landing gear was reinforced and the 2nd P29G received an experimental suspension system on its main legs with higher spring travel, which was designed for operations on semi-prepared airfields. This system had actually been designed for the updated J29 fighters (esp. the A32B attack variant), but it was not introduced into series production or the Saab 29E/F conversion program. Despite these massive changes, the P29G designation was retained, and the second machine, carrying the tactical code “Röd Urban” (Red U), was quickly nicknamed “Karpen” (“Carp”), due to its characteristic new intake shape, the long fin and its stocky shape.

 

The second P29G was ready for flight tests in August 1956, just in time to support the Saab 35’s ongoing development – the aircraft, which was eventually built to meet (and exceed) the Swedish Air Force’s 1949 supersonic interceptor requirement. The modifications proved to be successful and the P29G was, fitted with a 60° sweep wing and in clean configuration, able to achieve a maximum speed of 1.367 km/h (849 mph) in level flight, a formidable achievement (vs. the 1,060 km/h (660 mph) of the late J29F and the 1200 km/h (745 mph) of the J32B interceptor) for the post WWII design.

Several wing shapes and profiles were tested, including sweep angles from 25° to 63° as well as different shapes and profiles. Even though the machines carried provisions for the J29’s standard armament, the 20 mm cannons were normally not mounted and replaced with sensors and recording equipment. However, both machines were temporarily fitted with one or two guns in order to analyze the effects of firing the weapons at supersonic speed. Underwing ordnance was also almost never carried. In some tests, though, light bombs or unguided missiles were carried and deployed, or podded cine cameras were carried.

 

While the second P29G was used for high speed trials, the first machine remained in its original guise and took over low speed handling tests. Thanks to the unique wing switch mechanism, the supersonic research program could be held within a very tight schedule and lasted until late 1959. Thereafter, the P29Gs’ potential was of little use anymore, and the engine use agreement with the USA put an end to further use of the two aircraft, so that both P29Gs were retired from service in 1960. The 1st machine, outfitted with standard J29F wings and stripped off of its engines, remained in use as an instructional air at Malmslätt air base 1969, while the second machine was mothballed. However, both airframes were eventually scrapped in 1970.

  

General characteristics:

Crew: 1

Length: 11.66 m (38 ft 2 in) fuselage only,

13,97 m (45 ft 9 in) with pitot boom

Wingspan: varied*; 11.0 m (36 ft 1 in) with standard 25° sweep wings,

10.00 m (32 ft 9 ¾ in) with experimental 45° wings

Height: 4.54m (14 ft 10 ½ in)

Wing area: varied*; 24.15 m² (260.0 ft²) with standard 25° sweep wings

22.5 m² (242.2 ft²) with experimental 45° wings

Empty weight: 5,220 kg (11,500 lb)

Max. takeoff weight: 8,510 kg (18,744 lb)

 

Powerplant:

2× Westinghouse J34-WE-42 turbojets, each rated at 3,400 lbf (15 kN) dry thrust

and 4,200 lbf (19 kN) with full afterburner

 

Performance:

Maximum speed: 1.367 km/h (849 mph) were achieved*

Range: 790 km (490 mi)

Service ceiling: up to 17,250 m (56,500 ft)*

Rate of climb: up to 45 m/s (8,850 ft/min)*

 

*Varying figures due to different tested wing configurations

 

Armament:

None installed; provisions for 4x 20mm Hispano Mark V autocannon in the lower front fuselage.

Depending on the mounted wing type, various external loads could be carried, including a wide range of light bombs, 75 mm (3 in) air-to-air rockets, 145 mm (5.8 in) anti-armor rockets, 150 mm (6 in) HE (high-explosive) rockets or 180 mm (7.2 in) HE anti-ship rockets. Due to the lack of complex wiring or fuel plumbing, no guided weapons or drop tanks could be mounted, though.

  

The kit and its assembly:

Sweden is a prolific whiffing territory, and the Saab 29 offers some interesting options. This highly modified Tunnan, which is actually rather a kitbashing than a mere model kit modification, is/was a submission to the “More or less engines” group build at whatifmodelers.com in summer 2019.

I actually had the idea of a two-engine J29 in the back of my mind for a long time, spawned by a resin conversion set for the Hasegawa B-47 Stratojet kit that came with new intakes and exhaust sections for the four engine pods. The single engine pod parts had been spent a long time ago, but the twin engine parts were still waiting for a good use. Could the exhaust fit under/into a Tunnan…?

I even had a Matchbox J29 stashed away for this experiment long ago, as well as some donor parts like the wings, and the GB eventually offered the right motivation to put those things together that no one would expect to work.

 

So I pulled out all the stuff and started – a rather straightforward affair. Work started with the fuselage, which was, together with the (very nice) cockpit assembled OOB at first, the nose filled with as much lead as possible and with the lower rear section cut away, so the B-47 resin jet nozzles would end up at the same position as the original RM2B exhaust. Due to the pen nib fairing between them, though, the profile of the modified tail became (visually) more massive, and I had to fill some gaps under the tail boom (with styrene sheet and putty). The twin engines also turned out to be wider than expected – I had hoped for straight flanks, but the fuselage shape ended up with considerable bulges behind the landing gear wells. These were created with parts from drop tank halves and blended into the rest of the lower hill with PSR work. In the same wake the area under the fin was sculpted and re-created, too.

 

At that point it became clear that I had to do more on the fuselage, esp. the front end, in order to keep the aircraft visually balance. A convenient solution became an F-100 air intake, which I grafted onto the nose instead of the original circular and round-lipped orifice – with its sharp lip the Super Sabre piece was even a plausible change! The fuselage shapes and diameters differed considerably, though, more PSR became necessary.

 

Next came the wings: I had already set apart a pair of trapezoid wings with a 45° sweep angle – these were left over from a PM Model Ta 183 conversion some time ago. With their odd shape and size they were a perfect match for my project, even more so due to the fact that I could keep the original J29 wing attachment points, I just had to shorten and modify the trailing edge area on the fuselage. The result was very conclusive.

 

With the new nose and the wings in place, the overall proportions became clearer: still tail-heavy, but not unpleasant. At this time I was also certain that I had to modify the tail surfaces. The fin was too small and did not have enough sweep for the overall look, and the stabilizer, with its thick profile, rounded edges and the single, continuous rudder did not look supersonic at all. What followed was a long search in the donor banks for suitable replacements, and I eventually came up with a MiG-15 fin (Hobby Boss) which was later clipped at the top for a less recognizable profile. The stabilizers were more challenging, though. My solution eventually became a pair of modified stabilizers from a Matchbox Buccaneer(!), attached to the MiG-15 fin.

 

The design problems did not stop here, though: the landing gear caused some more headaches. I wanted to keep the OOB parts, but especially the main legs would leave the aircraft with a very goofy look through a short wheelbase and a rear axis position too much forward. In an attempt to save the situation I attached swing arms to the OOB struts, moving the axis maybe 5mm backwards and widening the track by 2mm at the same time. Not much in total, but it helped (a little, even though the aircraft is still very tail-heavy)

 

As a final addition – since the original, wing-mounted pitots of the J29 were gone now and would not go well with the wing-switching idea – I gave the P29G a large, nose-mounted pitot and sensor boom, placed on top of the nose. This part come, like the air intake, from an F-100.

  

Painting and markings:

I tend to be conservative when it comes to liveries for what-if models, and the P29G is no exception. At first, I thought that this build could become an operational supersonic daylight interceptor (the J29G), so that I could give the model full military markings and maybe a camouflage paint scheme. However, this idea would not work: the potential real life window for such an aircraft, based on the Saab 29, would be very narrow. And aircraft development in the late Fifties made quantum leaps within a very short period of time: While the J29A entered service, work on the Mach 2 Saab 35 was already underway – nobody would have accepted (or needed) a Mach 1 fighter, based on late Forties technology, at that time anymore, and there was the all-weather Saab J32B around, too. The update program with new wings and a more powerful afterburner engine was all that could be done to exploit the Tunnan’s potential, resulting in the (real world’s) J29E and F variants.

 

I eventually decided that the J29G would only be a prototype/research aircraft, consequently called P29G, and through this decision I became more or less settled upon a NMF finish with some colorful markings. Consequently, the model was painted with various shades of metal colors, primarily Polished Aluminum Metallizer from Humbrol, but also with Humbrol 191 and Matt Aluminum Metallizer as well as ModelMaster Steel Metallizer. Around the exhaust section, I also used Revell 91 (Iron) and ModelMaster Exhaust Metallizer. Some single panels and details were painted with Revell 99 (Aluminum), and I also used generic decal material in silver to simulate some smaller access panels. Grey decal sheet was used to simulate covers for the cannon nozzles.

 

The cockpit interior was painted, according to Saab 29 standard, in a dark greenish-grey (Revell 67), and bluish grey was used inside of the landing gear wells (Revell 57). The pitot boom received black and white stripes.

 

For markings I let myself get inspired from the real world Saab 29 and 32 prototypes, which were all marked with a colored “U” tactical code on the fin and also on the front fuselage, simply meaning “Utverding” (= “Test”). I found four red decals, and I also gave the aircraft a yellow cheatline, lent from an Airfix F-86D decal sheet. The Swedish roundels come from a generic aftermarket sheet, most stencils were taken from the Revell OOB sheet and a Printscale J29 sheet.

 

Before the model was sealed with semi-gloss acrylic varnish from Italeri, some grinded graphite was rubbed onto the rear fuselage, adding a metallic shine and simulating exhaust stains.

 

A thorough conversion – this has rather evolved into a kitbashing than just a kit conversion: not much from the original Matchbox J29 has been left over. But I like the outcome, even though things developed gradually from the simple idea of changing the number of engines on the Tunnan. One thing led to another. The resulting aircraft looks quite plausible, even though I am not totally happy with the landing gear, which appears to be rather far forward, despite surgical measures to mend the situation. The Ta 183 wings are a very good match, though, and I cannot help but recognize a certain French look, maybe due to the cruciform tail and the oval air intake? The P29G could also, with Argentinian marking, have become a revised version of the FMA Pulqui II?

Having flown in commercial services between 2000-2007 under several different British Airways subsidiaries as G-BZAY, is now registered as G-ETPL, with the Empire Test Pilots Scholl / QinetiQ, and on display at RIAT 2024, at RAF Fairford complete with a Eurofighter Typhoons nose cone now mated to the fuselage to test advanced radar systems.

Once the fastest production car in the world, the Jaguar XK120 was Jaguar's first new product following the end of the war, being designed in those dark final days of the conflict and being developed over the next three years, making its début in 1948.

 

The XK120 was launched in open two-seater form at the 1948 London Motor Show as a testbed and show car for the new Jaguar XK engine. The display car was the first prototype, chassis number 670001. It looked almost identical to the production cars except that the straight outer pillars of its windscreen would be curved on the production version. The roadster caused a sensation, which persuaded Jaguar founder and design boss William Lyons to put it into production.

 

Beginning in 1948, the first 242 cars wore wood-framed open 2-seater bodies with aluminium panels. Production switched to the 112lb heavier all-steel in early 1950. The "120" in the name referred to the aluminium car's 120 mph top speed, which made it the world's fastest production car at the time of its launch. Engine models ranged from a 160bhp DOHC Straight-6 Double SU H6 low end model, to the fastest version which was powered by a 210bhp DOHC Straight-6 Double SU H8, giving the car a top speed of 124mph, which in 1949 was a spectacular feat when compared to the Austins and Morris' of the time.

 

On 30 May 1949, on the empty Ostend-Jabbeke motorway in Belgium, a prototype XK120 timed by the officials of the Royal Automobile Club of Belgium achieved an average of runs in opposing directions of 132.6 mph with the windscreen replaced by just one small aeroscreen and a catalogued alternative top gear ratio, and 135 mph with a passenger-side tonneau cover in place. In 1950 and 1951, at a banked oval track in France, XK120 roadsters averaged over 100 mph for 24 hours and over 130 mph for an hour, and in 1952 a fixed-head coupé took numerous world records for speed and distance when it averaged 100 mph for a week.

 

The Motor magazine road-tested an XK120 roadster in November 1949. This pre-production car, chassis number 670001, road-registered as HKV 455, was the first prototype built. It was also the 1948 London Motor Show display model, and had been driven by Prince Bira in the 1949 Silverstone Production Car Race. The magazine reported a top speed of 124.6 mph, acceleration from 0–60 mph in 10.0 seconds and fuel consumption of 19.8 miles per imperial gallon. The car as tested cost £1263 including taxes.

 

In 1949 the first production roadster, chassis number 670003, was delivered to famous actor Clark Gable.

 

The XK120 was ultimately available in two open versions, first as an open 2-seater described in the US market as the roadster, then also as a drophead coupé from 1953; and also as a closed, or fixed head coupé from 1951.

 

Production of the car ended in 1954 after 12,055 examples were constructed, being replaced by the Jaguar XK140. Today you'd be hard pressed to find XK120's on a regular basis, but if you attend car shows like me you'd be likely to find at least one show up.

 

Most notably though, the car returned to the centre stage of modern motoring through a spectacularly organised and choreographed race between the presenters of Top Gear on their Race to the North, a competition set in a hypothetical 1949 between the primary modes of transport at the time, with James May in the Jaguar XK120, Richard Hammond on a Vincent Blackshadow motorbike, and Jeremy Clarkson on the rebuilt Peppercorn A1 Pacific number 60163 'Tornado'.

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