Aircraft control surface actuator - has cam-operated breaker in electric circuit to de-energise motor when steering surface is turned through one step

摘要

The aircraft steering surface actuator has an electric motor, a reduction gear and a step-by-step control mechanism in the form of a cam-operated breaker in the electric motor power supply circuit. The breaker automatically deenergizes the electric motor when the steering surface is turned through one step. This prevents the steering surface from inadvertent movement to the extreme position in case of trouble in the system.