Helicopter rotors

Details Helicopter rotors Helicopter rotors

1990-09-24

1992-03-31

Denion, Thomas E.

Fluid reaction surfaces (i.e., impellers)

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

Nonmetallic resilient mounting

416134R, 416140, B63H 106, B64C 1112

Patent

active

051002949

ABSTRACT:
A flexible beam type helicopter rotor includes restraining means outboard of a snubber means and connected between the flexible beam and a torque tube to increase the stiffness of the rotor in the lead/lag plane as applied pitch is increased.

REFERENCES:
patent: 2231222 (1966-01-01), Scheutzow
patent: 2830669 (1958-04-01), Klockner
patent: 3193019 (1965-07-01), Drees et al.
patent: 3606575 (1971-09-01), Lermusiaux
patent: 4135856 (1979-01-01), McGuire
patent: 4174137 (1979-11-01), Ferris
patent: 4257738 (1981-03-01), Schwartz et al.
patent: 4297078 (1981-10-01), Martin
patent: 4345876 (1982-08-01), Schwartz et al.
patent: 4547127 (1985-10-01), Frommlet
patent: 4676720 (1987-06-01), Niwa et al.

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