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公开(公告)号：CA1016927A
公开(公告)日：1977-09-06
申请号：CA235711
申请日：1975-09-15
Applicant: UNITED TECHNOLOGIES CORP
Inventor： CARTER DONALD R , PARKINSON GERALD W , CUTTING JACK R
IPC: B64C27/00 , B64C27/46 , B64C27/473 , B64D45/02
Abstract: A composite helicopter blade made of electrically conductive and electrically nonconductive materials in which the blade parts most susceptible to being struck by lightning are either insulated from the lightning or are grounded to the blade root and hence to the fuselage.
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