发明名称 A HELICOPTER
摘要 A helicopter (2) comprising a body portion (4), a plurality of rotor blades (6) which are mounted for rotation with respect to the body portion (4), and a fan (8) which is mounted for rotation in an opposite direction to the direction of rotation of the rotors (6), the rotor blades (6) being such that they are spaced apart in a vertical direction, and the fan (8) being such that when it rotates it generates a torque which acts to counteract at least a part of the torque generated by the rotor blades (6) when they rotate.
申请公布号 CA2614388(A1) 申请公布日期 2007.01.18
申请号 CA20062614388 申请日期 2006.06.26
申请人 HALLETT, BRIAN RICHARD;BLACKBURN, DONALD GEORGE 发明人 HALLETT, BRIAN RICHARD;BLACKBURN, DONALD GEORGE
分类号 B64C27/08;B64C11/00;B64C27/00;B64C27/10;B64C27/82 主分类号 B64C27/08
代理机构 代理人
主权项
地址