Retractable helicopter rotor

Details Retractable helicopter rotor Retractable helicopter rotor

1991-05-16

1992-09-22

Peters, Jr., Joseph F.

Aeronautics and astronautics

Aircraft, heavier-than-air

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

244 7R, 416142, B64C 2732

Patent

active

051490137

ABSTRACT:
A retractable helicopter rotor in which the rotor and its blades, the swashplate and the pitch change rods are retracted and extended as a unit during the helicopter rotor retraction/extension mode of operation, wherein the connection between the rotor support system and the fuselage constitutes a single interface between overlapping circumferentially extending flanges of each, and with the bolts joining those flanges being loaded in compression.

REFERENCES:
patent: 2792189 (1957-05-01), Altemus
patent: 2981339 (1961-04-01), Kaplan
patent: 3050277 (1962-08-01), Katzenberger et al.
patent: 3912199 (1975-10-01), Seibel et al.
patent: 3972491 (1976-08-01), Ferris et al.
patent: 4131392 (1978-12-01), Barzda

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