Aeronautics and astronautics – Aircraft power plants
Patent
1989-05-26
1990-12-25
Barefoot, Galen
Aeronautics and astronautics
Aircraft power plants
244 75R, 137 151, B64C 900, B64D 3302
Patent
active
049796992
ABSTRACT:
The invention provides a flight attitude control augmentation arrangement and method which is effective at both low speeds and at high altitudes, under conditions in which traditional flight control surfaces cannot provide sufficient air pressure differentials to develop effective control moments. The invention provides flight control surfaces at the engine air intakes of an aircraft. The flight control surfaces are flaps whose angular position determines the amount by which the intake airstream is perturbed by the flap and the consequent reaction force on the aircraft fuselage, which in turn determines the magnitude of the control moments generated by the surfaces. The net moments resulting from asymmetric deployment of the flaps are used to augment flight control moments generated by conventional flight control such as a rudder.
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Barefoot Galen
Grumman Aerospace Corporation
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