Propulsive lifting rotors

Details Propulsive lifting rotors Propulsive lifting rotors

1977-12-23

1980-07-01

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft, heavier-than-air

Paddle wheel sustained

244 9, 416111, 416139, B64C 2700, B64C 2900, B64C 3900

Patent

active

042102995

ABSTRACT:
A propulsive lifting rotor for an aircraft comprises two wings pivotally mounted about axes parallel to their leading edges. The wings (rotary airfoils) are located at respective sides of a plane at right angles to the rotor axis.

REFERENCES:
patent: 1894081 (1933-01-01), Brooks
patent: 2413460 (1946-12-01), Main
patent: 3001418 (1961-09-01), Nectoux
patent: 3938759 (1976-02-01), Bastide
patent: 4048947 (1977-09-01), Sicard

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