VTLH autogyro

Details VTLH autogyro VTLH autogyro

1988-10-21

1990-04-03

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft, heavier-than-air

Airplane and auto-rotating wing sustained

244 1711, 244 1723, 244 1725, 416129, B64C 2702

Patent

active

049133764

ABSTRACT:
This invention relates to autogyros and to counter-rotating rotor helicopters. It further relates to compound autogyros and/or helicopters that employ a lifting surface or wing in forward flight. More specifically this invention provides an autogyro with counter-rotating rotors, circular planform wing integral with the rotors, and means for engaging power to the rotors for vertical ascent, descent and hovering.

REFERENCES:
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patent: 1849943 (1932-03-01), McLaughlin
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patent: 2192139 (1940-02-01), Larsen
patent: 2438661 (1948-03-01), Grady
patent: 2589030 (1952-03-01), Alde
patent: 2724446 (1955-11-01), Hill
patent: 2861641 (1958-11-01), Bensen
patent: 3018068 (1962-01-01), Frost et al.
patent: 3118504 (1964-01-01), Cresapo
patent: 3122342 (1964-02-01), Weir
patent: 3395876 (1968-08-01), Green
patent: 3900176 (1975-08-01), Everett
patent: 4195800 (1980-04-01), Wallace
patent: 4589611 (1986-05-01), Ramme

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