Flexible airfoils and method

Details Flexible airfoils and method Flexible airfoils and method

2006-03-07

2006-03-07

Barefoot, Galen (Department: 3644)

Aeronautics and astronautics

Aircraft, heavier-than-air

Airplane sustained

C244S03500A, C244S022000, C244S072000, C244S123800

Reexamination Certificate

active

07007889

ABSTRACT:
An airfoil for use in kites, movable wing aircraft and fixed wing aircraft has a straight spar inserted into a sleeve in the arcuate leading edge of a flexible wing panel. The resultant forces on the spar dynamically shape the airfoil. The airfoil is reinforced by battens between the leading edge and the trailing edge of the wing panel. Flight control is maintained through control lines warping the airfoil.

REFERENCES:
patent: 1364174 (1921-01-01), Bird
patent: 4053122 (1977-10-01), Gar
patent: 4198019 (1980-04-01), Linczmajer
patent: 4363458 (1982-12-01), Jones et al.
patent: 5170965 (1992-12-01), Yasuda
patent: 5275117 (1994-01-01), Magnan
patent: 6364251 (2002-04-01), Yim
patent: 2003/0230672 (2003-12-01), Charron

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