Aeronautics and astronautics – Aircraft – heavier-than-air – Airplane and fluid sustained
Patent
1981-06-04
1984-11-13
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft, heavier-than-air
Airplane and fluid sustained
244 15, 244 23D, 244 52, 244 55, B64C 1502, B64C 2900
Patent
active
044821093
ABSTRACT:
A jet aircraft is provided of the vertical or short take off and land (VSTOL) type which is a stable and controllable in all flight attitudes. The aircraft exhibits a high engine thrust/weight ratio which enables it to achieve shorter take-off, shorter landing distances and faster climbs as compared with prior art aircraft of the same general type. The aircraft includes two jet engines mounted side-by-side in its nose which assist in achieving smooth variation in cross-sectional area so that the area rule is not violated, and this enables efficient flight speeds in the sonic vicinity to be achieved. The exhaust of each engine of the aircraft is controlled by a thrust deflector and associated air foil array, the thrust deflector being deflected downwardly at an angle of substantially 75.degree. to the horizontal aircraft center line during take-off so that the aircraft may take off and land vertically in a nose-high attitude with the engine inlets at the nose of the aircraft displaced up and away from the ground so as to prevent any ingestion through the inlets of forward moving air.
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Barefoot Galen L.
Beecher Keith D.
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