Aeronautics and astronautics – Aircraft sustentation – Sustaining airfoils
Patent
1994-02-02
1995-09-05
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft sustentation
Sustaining airfoils
244 53B, 60269, B64D 3302, B64C 2104
Patent
active
054472830
ABSTRACT:
A blown boundary layer control system for an aircraft having a jet engine with an engine compressor, an inlet including a compression surface with an external part and internal part, a cowl lip including an internal lip surface and an external lip surface and an external afterbody. The system includes several ducts from the engine compressor. A series of nozzles and valves control and direct air flow to various surfaces. A computer is electrically connected to the valves to control the operation of the valves thereby controlling the blowing of air from a commanded number of nozzles. The computer controls the valves in position as functions of RPM of the engine, free stream flight conditions and aircraft attitude.
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Barefoot Galen L.
Grumman Aerospace Corporation
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