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Rockwell became responsible in 1972 for development of the US Navy's XFV-12A V/STOL Fighter/Attack Technology Prototype programme. Basically a single-seat all-weather V/STOL fighter/ attack aircraft, the XFV-12A made use of an augmentor wing concept in which the efflux of its single Pratt & Whitney F401-PW-400 afterburning turbofan engine could be diverted to nozzles in the wings and foreplanes for V/STOL operations. An ejector-flap system was incorporated in the design of each wing and foreplane, in which ambient air was mixed with turbine efflux in a ratio of 7:1 to provide the essential jet-lift for vertical operations and, when the flaps are raised or lowered progressively, for transition from vertical to horizontal flight and vice versa. The programme proved a disappointment and failed to provide an alternative to the Harrier.
| ENGINE | 1 x 133.4kN Pratt & Whitney F401-PW-400 turbofan |
| WEIGHTS |
| Take-off weight | 11000 kg | 24251 lb |
| DIMENSIONS |
| Wingspan | 8.69 m | 28 ft 6 in |
| Length | 13.35 m | 43 ft 10 in |
| Height | 3.15 m | 10 ft 4 in |
| PERFORMANCE |
| Max. speed | 2560 km/h | 1591 mph |
| Don Seleman, sorcerer250(@)hotmail.com, 26.12.2007 oh i just like this aircraft to me it has special design features. i'm trying to find out if anyone ever made a model of this. |
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Do you have any comments about this aircraft ?
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COMPANY
PROFILE
FACTS AND FIGURES© The whole XFV-12 programme
was conducted on the cheap. The
main landing gear, canopy and
other cockpit parts came from an
A-4 Skyhawk. The main wing
box and parrs of rhe inlets were
from an F-4 Phantom. © In vertical flight yaw was
controlled by vectoring the
ejector units. Roll control came
from varying the amount of
thrust supplied to each. © The XFV-12 had what was called
a 'thrust augmentor wing'. Engine
gases were to be channelled along
ducts in the canard and wing
surfaces for vertical flight.
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