Method of manufacturing a unitary, multi-legged helicopter rotor

Details Method of manufacturing a unitary, multi-legged helicopter rotor Method of manufacturing a unitary, multi-legged helicopter rotor

1991-01-15

1992-02-25

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156169, 156173, 156245, 156286, 416134A, B65H 8100, B64C 1112

Patent

active

050910299

ABSTRACT:
The method of manufacturing a multi-legged (preferably five) flexbeam for a hingeless flexbeam helicopter rotor, which flexbeam is of one-piece construction and made solely of composite materials, and includes full length plies of unidirectional high strength fibers extending from a first leg and splitting in passing through the hub portion of the flexbeam, and then extending into two substantially diametrically opposite legs, and having cross and unidirectional plies interspersed between the full length plies to effect the desired taper and shape of the flexbeam hub and legs, and wherein the final ply lay-up is made on a rotatable lay-up tool of dodecahedron shape.

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patent: 4892461 (1990-01-01), Matsumoto et al.
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