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  1. Hi all, I managed to get this one finished within the last month to add to my growing collection of 1/72nd scale VTOL/STOL jet projects and which will hopefully feature in an upcoming book article about such projects that's underway at the moment. Apols in advance for all the text but the system the aircraft used needs a bit of explaining... This is my take on the amazing Rockwell XFV-12A VTOL fighter of the mid seventies which never made it beyond the prototype stage, not really surprising when you consider the technological hurdles that the company faced in designing the project. The aircraft was designed as a supersonic fighter/attack machine using a "Thrust Augmenter Wing" concept. The design used a modified 30,000 lb thrust (in afterburner) Pratt & Whitney F401 engine. For vertical lift, a diverter valve in the engine exhaust system blocked the nozzle and directed the gases through ducts to ejector nozzles in the wings and canards for vertical lift. The thrust of the spanwise ejectors could be modulated by varying the diffuser angle: pitch and roll were controlled by differential variation of the four ejectors from fore to aft and left to right; yaw was controlled by differential ejector vectoring. An auxiliary engine inlet for use in vertical flight was located immediately behind the cockpit. If certain parts look familiar then that's probably because the prototype aircraft used the forward fuselage and nose gear of an A-4 and a resized centre section and intakes of an F-4 to save money, (the main gears came from a T-2 Buckeye). Unfortunately the system was flawed as the engine could only lift 75% of the weight of the aircraft in which it was mounted and even though an extensive upgrade program was considered to improve the power/weight ratio the costs were spiralling out of control until it became one of the most expensive aviation projects the US had ever undertaken. It did make a couple of tethered hovering flights using the old NASA LEM test facility which only went to validate the inherent problems with the thrust weight ratio. Needless to say the whole thing was wound up in 1978 and in retrospect should never have been given the green light...another costly 'dead end' sadly. Had it worked it would have been an amazing aircraft..it's top speed was cited to be 1595 mph...no slouch and very agile. I've portayed it as an operational F(V)-12E of VF-191(Satans Kittens) aboard USS Oriskany for work up early 1975, (had the program gone through on time as sadly the Oriskany was decomissioned in late 1976), armed with two AIM-7's and four AIM-9G's. The Sidewinders and Sparrows are mounted in the proposed positions as stated in the Rockwell brochure, the long range tanks are from an Emhar Demon. There were several different proposals including a twin engine version and one tailored to the USMC for close support. This model took a lot of work to be honest as all the individual control surfaces had to be cut out and then their relative positions worked out as Anigrand provide everything in flight position as a simple kit. Same goes for the wepons loadout. The dustbin lid in the exhaust is actually the sealing nozzle to prevent hot gas leaving the exhaust when diverted to the thrust augmentors in the wings, (ala Saab Viggen thrust reverser), and was closed when the slats and flaps were in the VTOL mode.. The main gear has been replaced as it was too short and over simplified and a new cockpit was used from an A-4 kit. The resin had a lot of air bubbles and bits missing as usual and a rather pebbly soapy surface texture which was a right pain to get right, but I'll be building a lot more Anigrands in the future, love 'em. Finished using Gunze and model master paints, Flory light dirt washes, Alclad metallics, pastel and oil washes and decals from the spares box. Although a footnote in aviation history it's still an interesting aircraft/concept and a good all round fun build.................Can I can come off the meds now nursey ! Cheers all, Melchie
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