High speed helicopter

Details High speed helicopter High speed helicopter

1986-12-31

1988-01-19

Barefoot, Galen

Aeronautics and astronautics

Aircraft, heavier-than-air

Helicopter or auto-rotating wing sustained, i.e., gyroplanes

244 1725, 244 1727, 416148, B64C 2706

Patent

active

047200596

ABSTRACT:
A high speed helicopter, ideally suited for use with rotors which are tip propelled, has an offset flapping hub mounted on a tiltable mast which is located a substantial distance off to the retreading blade side of the fuselage of the helicopter. This causes the fuselage to be located completely under the advancing blades. Individual pitch control motors individually vary the pitch of the rotor blades to control the feathering angle as a function of the angular position so that lift is obtained from the advancing and laterally moving blades only.

REFERENCES:
patent: 2030078 (1936-02-01), Vaughn
patent: 2163728 (1939-06-01), Dyer
patent: 2514205 (1950-07-01), McDonald
patent: 2514206 (1950-07-01), Perry
patent: 2535164 (1950-12-01), Seibel
patent: 2626766 (1953-01-01), McDonald
patent: 2724446 (1955-11-01), Hill
patent: 2886261 (1959-05-01), Robert
patent: 3182931 (1965-05-01), Mil
patent: 3921939 (1975-11-01), Garfinkle

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