Helicopter with retractable rotor for transport

Details Helicopter with retractable rotor for transport Helicopter with retractable rotor for transport

1991-05-16

1993-05-11

Oberleitner, Robert J.

Aeronautics and astronautics

Aircraft, heavier-than-air

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

244 7R, 416142, B64C 2732

Patent

active

052094294

ABSTRACT:
A helicopter with a retractable rotor for transport wherein the rotor and its blades, the swashplate, the pitch change rods and support mast are lowered or raised in unison by the hydraulic flight control servos as commanded by the helicopter computerized flight control when being commanded by special rotor retraction/extension software.

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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