Title:
COAXIAL HELICOPTER WITH ONE CYCLIC PITCH CONTROL ROTOR
Document Type and Number:
WIPO Patent Application WO2002064425
Kind Code:
A9
Abstract:
A coaxial helicopter (10), comprising a first rotor (14 or 15) carried by a first shaft (16 or 18) and a second rotor (14 or 15) carried by a second shaft (16 or 18); wherein one of the first and second rotors has cyclic pitch control and the other rotor does not have cyclic pitch control, at least pitch and roll control being implemented by cyclic blade pitch control of only one rotor of the coaxial rotor set (12). Provisions for yaw control can include differential collective control of the first and second rotors (14, 15), providing yaw paddles (34, 36) and/or a tail rotor (420), ducted fan (402), or an air jet (410) configured for yawning the coaxial helicopter.
Inventors:
ROCK EUGENE F
Application Number:
PCT/US2002/004485
Publication Date:
April 01, 2004
Filing Date:
February 14, 2002
Export Citation:
Assignee:
AIRSCOOTER CORP (US)
International Classes:
B64C27/10; (IPC1-7): B64C27/10
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