Autopilot, Yaw Damper, and Automatic Trim Operation
Refer to the current, approved version of the pertinent flight manual for specific instructions regarding emergency procedures.
The autopilot (AP) and yaw damper (YD) are designed to operate the flight control surface servos to provide automatic flight control. When engaged, the autopilot controls aircraft pitch and roll through the elevator and aileron servos, following commands received from the flight director. The yaw damper is also automatically engaged with autopilot engagement. Autopilot operation does not require the yaw damper; however, it is highly suggested to utilize the yaw damper while auto pilot is engaged.
The yaw damper reduces Dutch Roll tendencies and coordinates turns through the rudder servo. The yaw damper can operate independently of the autopilot and may be used during normal hand-flight maneuvers. Yaw rate commands are limited by the yaw damper.
The Automatic Trim system provides automatic pitch and yaw trim when the autopilot and yaw damper (respectively) are engaged. Autotrim provides commands to the trim adapters to relieve/offload any sustained effort required in those control axes. In the event of runaway trim, the AFCS will disengage automatic (and manual) trim commands being sent to the trim adapters.
- Flight Control
- Autopilot and Yaw Damper Engagement
- Control Wheel Steering (CWS) (Optional)
- Manual Autopilot and Yaw Damper Disengagement
- Automatic Autopilot and Yaw Damper Disengagement