Aeronautics and astronautics – Aircraft sustentation – Sustaining airfoils
Patent
1986-03-03
1988-01-05
Nase, Jeffrey V.
Aeronautics and astronautics
Aircraft sustentation
Sustaining airfoils
244215, 244 90R, 244 90A, B64C 934
Patent
active
047170972
ABSTRACT:
Aileron-supported split flaps and ground speed spoilers (collectively referred to as "aerodynamic lifting or braking devices") for reducing aircraft approach speeds and reducing the length of the runway needed to land the aircraft. The actuating mechanism for the aerodynamic lifting or braking device allows the latter to rotate with the supporting aileron as the latter is moved up and down when the lifting or braking device is in its stowed position. When the lifting or braking device is in its extended position, up and down aileron movements will cause the aerodynamic lifting or braking device to translate to and fro, but the lifting or braking device will remain in the extended position, irrespective of aileron movement. Hydraulic and torque tube systems can be used to deflect the aerodynamic lifting or braking device which completes the aerodynamic profile of the supporting aileron when that device is in its stowed position.
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Corl Rodney
Nase Jeffrey V.
The Boeing Company
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