Fiber reinforced/epoxy matrix composite helicopter rotor main hu

Details Fiber reinforced/epoxy matrix composite helicopter rotor main hu Fiber reinforced/epoxy matrix composite helicopter rotor main hu

1983-03-22

1986-02-04

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

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

Nonmetallic resilient mounting

416230, 416244R, B64C 1106

Patent

active

045682445

ABSTRACT:
A helicopter hub main retention plate is described made up of graphite and glass fiber reinforced epoxy resin. The graphite fiber reinforcement is in-plane isotropically laid continuous graphite fibers and the glass fiber reinforcement comprises segments of fiberglass continuously and circumferentially wound around the areas of retention. Such materials and configuration provide crack resistance, damage tolerance, and integrity inspectability to the retention plate.

REFERENCES:
patent: 4156583 (1979-05-01), Mayerjak
patent: 4195967 (1980-04-01), Weiland
patent: 4257738 (1981-03-01), Schwarz et al.
patent: 4293276 (1981-10-01), Brogdon et al.
patent: 4321013 (1982-03-01), Schwarz et al.
patent: 4342540 (1982-08-01), Lovera et al.
patent: 4352632 (1982-10-01), Schwarz et al.
patent: 4425082 (1984-01-01), Mussi et al.
patent: 4427340 (1984-01-01), Metzger et al.

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