发明授权
- 专利标题: Pre-landing, rotor-spin-up apparatus and method
- 专利标题(中): 预着陆,转子旋转装置和方法
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申请号: US13334261申请日: 2011-12-22
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公开(公告)号: US08998127B2公开(公告)日: 2015-04-07
- 发明人: Walter Gerd Oskar Sonneborn
- 申请人: Walter Gerd Oskar Sonneborn
- 申请人地址: US UT Salt Lake City
- 专利权人: Groen Brothers Aviation, Inc.
- 当前专利权人: Groen Brothers Aviation, Inc.
- 当前专利权人地址: US UT Salt Lake City
- 代理机构: Pate Baird, PLLC
- 主分类号: B64C27/02
- IPC分类号: B64C27/02 ; B64C27/18 ; B64C27/26
摘要:
A method and apparatus for reducing roll of rotorcraft landing in autorotation may include executing a flight with a rotorcraft. The flight may include first, second, and third portions ordered sequentially. During the first portion, the rotorcraft may be flown with the rotor exclusively in autorotation. During the second portion, the rotorcraft may be flown with the rotor powered at least partially by an engine of the rotorcraft, which may increase the rotational speed of the rotor. During the third portion, the rotorcraft may be flown with the rotor exclusively in autorotation. The flight and the third portion may terminate simultaneously with a touch down of the rotorcraft. Kinetic energy stored in the rotor during the second portion, during the third portion, bring the ground speed of the rotorcraft to substantially zero before touching down.
公开/授权文献
- US20120168556A1 PRE-LANDING, ROTOR-SPIN-UP APPARATUS AND METHOD 公开/授权日:2012-07-05
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