AN ELECTROMECHANICAL ACTUATOR FOR AN AIRCRAFT CONTROL SURFACE, AND AN AIRCRAFT PROVIDED WITH SUCH AN ACTUATOR

摘要

An electromechanical actuator for a movable flight control surface of an aircraft, the actuator comprising an electric motor (2) having an outlet shaft (20) with first and second directions of rotation, a movement transmission (1) arranged to connect the outlet shaft of the motor to the movable flight control surface, and a control unit (3) for controlling the motor. The transmission incorporates a pawl device (18) arranged to oppose the transmission of movement in the first direction of rotation, and the control unit is connected to a pawl declutching member (19) for declutching the pawl and enabling movement to be transmitted in the first direction of rotation.