Helicopter rotor

Details Helicopter rotor Helicopter rotor

1979-05-30

1981-12-08

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Articulated, resiliently mounted or self-shifting impeller...

Nonmetallic resilient mounting

416140, 416141, B64C 2738

Patent

active

043045251

ABSTRACT:
Rotary-wing aircraft rotor comprising a rigid hub coupled to the root of each blade in which a trailing return brace comprises a stack of metal plates alternating with plates of visco-elastic material the ends of which being coupled via a ball joint respectively to the root of one blade and to a place of the hub such that the brace is always slightly inclined.

REFERENCES:
patent: 2815821 (1957-12-01), Echeverria
patent: 3282350 (1966-11-01), Kisovec
patent: 3310119 (1967-03-01), Watson
patent: 3758230 (1973-09-01), Potter
patent: 3761199 (1973-09-01), Ferris et al.
patent: 3923419 (1975-12-01), Mouille
patent: 3932059 (1976-01-01), Rybicki
patent: 4028001 (1977-06-01), Watson
patent: 4105365 (1978-08-01), Ferris et al.
patent: 4178130 (1979-12-01), Ferris et al.

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