Airfoil variable cambering device and method

Details Airfoil variable cambering device and method Airfoil variable cambering device and method

1978-02-21

1981-01-27

Kelmachter, Barry L.

Aeronautics and astronautics

Aircraft sustentation

Sustaining airfoils

244214, B64C 348

Patent

active

042470668

ABSTRACT:
Airfoil device and method providing smooth, continuous, variation in airfoil camber and surface curvature over substantially the entire length of the device by use of a trusslike bendable beam as an airfoil rib having the airfoil skin surfaces flexibly slidable relative thereto. The beam is divided chordwise into upper and lower beam members each formed of a plurality of articulated sections. The beam members are connected by a bendable jackscrew which upon rotation causes one member to move chordwise, and its curvature to be changed, relative to the other thereby effecting deflection of the airfoil with concomitant variation in its camber and the curvatures of its outer skin surfaces.

REFERENCES:
patent: 1365346 (1921-01-01), Schenkel
patent: 1868748 (1932-07-01), Hogan
patent: 3704828 (1972-12-01), Studer et al.
patent: 4012013 (1977-03-01), Ball et al.

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