Propeller blade subassembly and method for making a propeller bl

Details Propeller blade subassembly and method for making a propeller bl Propeller blade subassembly and method for making a propeller bl

1989-11-02

1991-08-27

Kwon, John T.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Formed with main spar

416229R, 416241R, 2988960, 2988970, 2988971, 264 4660, 264 4670, B64C 1126

Patent

active

050429680

ABSTRACT:
A propeller blade spar/foam subassembly is manufactured by disposing a lamination of prepreg within a mold, closing the mold about a spar and injecting foam into mold cavities formed at the lead edge and the trailing edge of the spar.

REFERENCES:
patent: 3923421 (1975-12-01), Carter et al.
patent: 4213739 (1980-07-01), Euler et al.
patent: 4470862 (1984-09-01), More et al.
patent: 4471020 (1984-09-01), McCarthy
patent: 4626173 (1986-12-01), Mouille et al.
patent: 4648921 (1987-03-01), Nutter Jr.
patent: 4650534 (1987-03-01), Mussi et al.
patent: 4696623 (1987-09-01), Bost
patent: 4806077 (1989-02-01), Bost

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