The Rudder Bias Actuator is a pneumatic actuator installed on the rudder control system of a business jet plane.
In the event of an engine failure, the rudder bias actuators provide additional yaw control power to alleviate pilot effort.
Each actuator is balanced at its neutral position using low pressure bleed air from each engine regulated by spool and sleeve valves
Operating Temperature: -55°C +85°C
Operating Fluid: Engines Air (149°C)
Operating Low Pressure : 65 psi (4.7 bar)
Unit Weight: 4.0 kg
Operating Voltage: 28 Vdc
Employed On: Learjet LJ85
Piston speed: 0.05 m/sec
Piston Load (Extension): 900 N
Operating High Pressure : 300 psi (20.7 bar)