Hubless, hingeless and bearingless helicopter rotor system

Details Hubless, hingeless and bearingless helicopter rotor system Hubless, hingeless and bearingless helicopter rotor system

1983-09-07

1986-10-14

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

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

Resilient bias or mount

416134A, 416141, 416226, B64C 2738

Patent

active

046169776

ABSTRACT:
A helicopter rotor system in which a plurality of rotor blades are attached to the rotor mast. Each blade has a spar formed of fibers bundled and bonded together inside a skin. These fibers are divided into two bundles, each of which has a bight with a bend and two arms that double back into the spar. The bights are joined to the mast by spaced-apart attachments. The attachments may be plate-like, and can be shaped to provide initial coning and camber angles.

REFERENCES:
patent: 2757745 (1956-08-01), Verhage et al.
patent: 3533714 (1970-10-01), Pfleiderer
patent: 3950115 (1976-04-01), Euler
patent: 3962506 (1976-06-01), Dunahoo
patent: 4111605 (1978-09-01), Roman et al.
patent: 4201515 (1980-05-01), Derschmidt et al.
patent: 4213739 (1980-07-01), Euler et al.
patent: 4273511 (1981-06-01), Mouille et al.
patent: 4292009 (1981-09-01), Weiland et al.
patent: 4344739 (1982-08-01), Derschmidt et al.
patent: 4352631 (1982-10-01), Buchs et al.

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