发明名称 Helicopter cargo hook apparatus
摘要 An apparatus for attaching a load bearing line to a helicopter is disclosed that utilizes a curvilinear track mounted on the underside of the helicopter with a carriage having a cargo hook freely movable thereon. The curvilinear track has a radius of curvature that extends from the center of gravity of the helicopter to maintain forces imposed on the helicopter from a swinging load directed through a point near the center of gravity of the helicopter.
申请公布号 US4138078(A) 申请公布日期 1979.02.06
申请号 US19770801859 申请日期 1977.05.31
申请人 TEXTRON INC. 发明人 HESTER, MICHAEL L.;TILLER, FRANCIS E.
分类号 B64D9/00;(IPC1-7):B64D9/00 主分类号 B64D9/00
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