Device for control of an aerodynamic steering surface of a helicopter

摘要

The present invention relates to a device for control of an aerodynamic steering surface (D) of a helicopter (He), which includes an anti-torque system intended to counteract the torque induced by a main forward-movement and lifting rotor (R1) and comprising an anti-torque rotor (R2) exerting an anti-torque lateral thrust and said aerodynamic steering surface (D), controllable and generating an anti-torque transverse lift. According to the invention, said device includes controls means (1A) for controlling said aerodynamic surface (D) in terms of speed, as a function of the difference between a helicopter (He) yaw control demand and a datum demand for the auxiliary rotor (R2), as long as said difference is not zero.