Helicopter blade longitudinal member and relative manufacturing method
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United States of America Patent
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Mar 17, 1987
Grant Date -
N/A
app pub date -
Oct 16, 1984
filing date -
Oct 26, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
There is disclosed a longitudinal member for a helicopter blade made by placing inside an open mold an open outer covering on which covering and in contact with are arranged a number of uncured axial straps which define top and bottom backs of the longitudinal member itself; the straps being compacted, prior to closure of the mold, against a center core and a front nose by inserting a rear element made of prehardened synthetic composite material, the rear element having an essentially C-shaped section and the opposite side edges of the outer covering being folded thereover prior to closure of the mold.
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