The Boeing Company
METHODS AND APPARATUS FOR REDUNDANT ACTUATION OF CONTROL SURFACES

Abstract:

Methods, apparatus, systems and articles of manufacture are disclosed for redundant actuation of control surfaces. An example apparatus includes a control surface of an aircraft, and an actuator to move the control surface. The example apparatus also includes an electric motor to move the actuator; the electric motor communicatively coupled to an electrical system of the aircraft. The example apparatus also includes a hydraulic motor to move the actuator, the hydraulic motor fluidly coupled to a hydraulic system of the aircraft. The example apparatus also includes a sensor to detect incorrect operation of the hydraulic system. The example apparatus also includes a switch operatively coupled to the sensor, the switch to enable operation of the electric motor in response to the detected incorrect operation of the hydraulic system.