发明名称 Frame spar for soft airfoils
摘要 A sloop comprising a mast in the form of an A-frame with its plane athwartships. The luff of the mainsail is supported by a mainstay which is a thin wire or rod running from the apex of the A-frame vertically to a point on deck between the legs of the A-frame. This structure eliminates the turbulence along the leading edge or luff of the mainsail caused by conventional masts, and also permits a headsail to be closely hauled. The A-frame comprises one or more rigid horizontal spreaders and the mainsail boom and a spinnaker pole can be slidably mounted thereon.
申请公布号 US4886008(A) 申请公布日期 1989.12.12
申请号 US19880154838 申请日期 1988.02.11
申请人 PUCKETT, LAWRENCE J. 发明人 PUCKETT, LAWRENCE J.
分类号 B63B15/00 主分类号 B63B15/00
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