Rotor mounting assembly for rotary wing aircraft

Details Rotor mounting assembly for rotary wing aircraft Rotor mounting assembly for rotary wing aircraft

1981-02-04

1982-10-05

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

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

Nonmetallic resilient mounting

416141, 416230, B64C 2738

Patent

active

043526322

ABSTRACT:
The rotor blades of a rotary wing aircraft are mounted at their blade roots pon a rotor head formed as an integral body of composite fiber material shaped to define a plurality of bifurcated rotor blade support arms between which the blade roots are mounted. Each of the blades is formed, at least in the region of the blade roots, with a laminated configuration including at least two layers formed with a fiber loop having a unidirectional fiber orientation extending longitudinally of the rotor blade and about a load-bearing connection between the blade root and the rotor head. An intermediate layer having a crosswise fiber orientation is provided between each of the at least two layers of the blade root which integrally joins the two layers and the fiber loop is enclosed by support members at its longitudinal edges at the inside and outside thereof at least in the region of the load-bearing connection.

REFERENCES:
patent: 4156583 (1979-05-01), Mayerjak
patent: 4195967 (1980-04-01), Weiland
patent: 4255087 (1981-03-01), Wackerle et al.
patent: 4257738 (1981-03-01), Schwarz et al.

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