Two-position helicopter main rotor

Details Two-position helicopter main rotor Two-position helicopter main rotor

1975-07-14

1976-08-03

Blix, Trygve M.

Aeronautics and astronautics

Aircraft, heavier-than-air

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

416142, B64C 2706

Patent

active

039724913

ABSTRACT:
A helicopter main rotor which can be supported in two positions of elevation above the fuselage, and apparatus and method for moving the helicopter rotor with blades attached from a first elevated position above the fuselage wherein the rotor is supported from an extension shaft projecting from a first shaft to a second elevated position above the fuselage wherein the rotor is supported from the first shaft.

REFERENCES:
patent: 1672216 (1928-06-01), Hollander
patent: 1928560 (1933-09-01), Davis
patent: 2464285 (1949-03-01), Andrews
patent: 2509481 (1950-05-01), Crise
patent: 2749059 (1956-06-01), Meyers et al.
patent: 2899222 (1959-08-01), Ross
patent: 3912199 (1975-10-01), Seibel et al.

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