Autogyros

Details Autogyros Autogyros

1977-09-16

1980-04-01

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft, heavier-than-air

Airplane and auto-rotating wing sustained

244 1711, 244 7A, 416244R, 416245R, B64C 2702, B64C 2710

Patent

active

041958004

ABSTRACT:
Autogyro rotor comprises blades radiating outwardly from central disc structure. Disc structure extends over substantial part of the area of the rotor to increase lifting forces provided by rotor and may be shaped to produce aerodynamic lift on forward movement of rotor. Specifically, disc structure may include annular section of aerofoil cross-section surrounded by smaller annular section to produce similar effect to conventional aircraft wing flaps and slots. Blades are carried on shafts journalled in tubes extending out through disc structure and there is also disclosed a pitch control mechanism for rotating the shafts in the tubes to vary pitch of the blades.

REFERENCES:
patent: 1961996 (1934-06-01), Williams
patent: 2020235 (1935-11-01), Bradbury
patent: 2106783 (1938-02-01), Wilford
patent: 3106964 (1963-10-01), Culver et al.
patent: 3118504 (1964-01-01), Cresap
patent: 3327969 (1967-06-01), Head
patent: 3603700 (1971-09-01), Eskeli

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