Patent ID: 6123291
Filing Date: 2000-09-26
Classification: B64C

Abstract:
A device for controlling an aerodynamic surface for balancing a helicopter in terms of pitch, said aerodynamic surface being controllable in terms of orientation and generating lift for creating a pitching action, and said helicopter comprising a main lift and propulsion rotor, a fore-and-aft cyclic pitch of blades of said rotor being controllable by means of a pitch-control channel as a function of a command for the pitch control of the helicopter, said device comprising control means associated with said pitch-control channel, for controlling said aerodynamic surface to generate a lift which represents at least part of a first control command dependent on said pitch-control command, said part being executable by said aerodynamic surface, and wherein a combined pitching action of said aerodynamic surface and said main rotor represents said command for the pitch control of the helicopter.