Primary Flight Control System

The primary flight control system is part of the complete function needed to pilot an aircraft. It is actuating three sets of movable surfaces of the airframe - aileron, rudder and elevator. Liebherr supplies such control systems including actuators and electronic controllers.

Fly-by-wire technology is part of the systems that Liebherr offers for new applications. Actuators can be hydraulically or electrically driven depending on the aircraft architecture. Latest technology electro hydraulic actuators (EHA) or electric back-up hydraulic actuators (EBHA) have been successfully integrated into the Liebherr product portfolio.

Electrical back up hydraulic actuator (EBHA)