Aeronautics and astronautics – Aircraft – heavier-than-air – Airplane and fluid sustained
Patent
1989-09-18
1991-08-27
Barefoot, Galen
Aeronautics and astronautics
Aircraft, heavier-than-air
Airplane and fluid sustained
244 23D, 244 52, 23926519, 23926529, B64C 1502, B64D 3304
Patent
active
050427458
ABSTRACT:
A tilt ramp swept edge nozzle for vectoring exhaust gases from an engine mounted in an aircraft has a pair of flaps pivotally affixed to the aircraft in the area of the output end of the engine tailpipe. The flaps are in spaced relation to each other, aligned with the trailing edge of the airfoil of the aircraft and are movable to positions substantially parallel to each other and to positions substantially non-parallel to each other. An actuating system coupled to the flaps moves same relative to each other thereby to maintain a substantially constant effective throat area in the nozzle and providing an increasing nozzle aspect ratio and variable thrust direction during transition from forward to aft throat position of the nozzle.
REFERENCES:
patent: 2420323 (1947-05-01), Meyer et al.
patent: 2928238 (1960-03-01), Hawkins
patent: 3062482 (1962-11-01), Frost
patent: 3100377 (1963-08-01), Kosin et al.
patent: 3986687 (1976-10-01), Beavers et al.
patent: 4641782 (1987-02-01), Woodward
patent: 4690329 (1987-09-01), Madden
patent: 4848664 (1989-07-01), Thayer
Barefoot Galen
Geib Richard G.
Grumann Aerospace Corporation
Hoffman Bernard S.
Tick Daniel J.
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