Garmin G900X Pilot's Manual page 504

AUTOMATIC FLIGHT CONTROL SYSTEM
• Flight Director (FD) — Flight director operation takes place within the primary (#1) IAU. Flight director
commands are displayed on the PFD. The flight director provides:
– Command Bars showing pitch/roll guidance
– Pitch/roll mode selection and processing
– Autopilot communication
• Autopilot (AP) — Autopilot operation occurs within the pitch, roll, and pitch trim servo and provides servo
monitoring and automatic flight control in response to flight director steering commands, AHRS attitude and
rate information, and airspeed.
• Yaw Damper (YD) — The yaw servo is self-monitoring and provides Dutch roll damping and turn
coordination in response to yaw rate, roll angle, vertical acceleration, and airspeed.
• Manual Electric Trim (MET) — The pitch trim servo provides manual electric trim capability when the
autopilot is not engaged.
488 Garmin G900X Pilot's Guide 190-00726-00 Rev. J