Invention Grant
US08146854B2 Dual rotor vertical takeoff and landing rotorcraft 失效
双转子垂直起降飞机

  • Patent Title: Dual rotor vertical takeoff and landing rotorcraft
  • Patent Title (中): 双转子垂直起降飞机
  • Application No.: US12519988
    Application Date: 2008-02-28
  • Publication No.: US08146854B2
    Publication Date: 2012-04-03
  • Inventor: John M. Lawrence
  • Applicant: John M. Lawrence
  • Agency: Carlton Fields, PA
  • Agent C. Douglas McDonald; William G. Giltinan
  • International Application: PCT/US2008/055252 WO 20080228
  • International Announcement: WO2008/140851 WO 20081120
  • Main IPC: B64C27/10
  • IPC: B64C27/10
Dual rotor vertical takeoff and landing rotorcraft
Abstract:
A rotorcraft having two coaxial, counter-rotating rotors, one proximate to the forward end of the fuselage and one proximate to the aft end of the fuselage, that generate the forces necessary to lift the craft and maneuver it in the air by adjusting the pitch of the rotor blades throughout their rotation, and a method of flying a dual rotor rotorcraft involving taking off in a vertical orientation, climbing vertically, transitioning to generally horizontal flight, flying horizontally, and subsequently repeating the sequence in reverse to land again in a vertical orientation.
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