actuator for varying a position of a flight control surface on an aircraft, and method for adjusting the clearance on a flight control surface actuator

摘要

An actuator for varying a position of a flight control surface on an aircraft is disclosed, wherein the actuator comprises a backstop device (10) including a clearance regulator, which is arranged to select a plurality of different clearance lengths. the slack adjuster may be a nut (20) which moves relative to a housing of the backstop (10) by rotating the nut (20). Also disclosed is a method of adjusting the clearance (b) on a flight control surface actuator by axially moving the clearance regulator to adjust the clearance (b) to a desired value.