Garmin G3X Installation Manual page 692

32.4.10 Trim Configuration Page
The GSA 28 autopilot servos can be used to control the trim system in an aircraft. When the autopilot is
disengaged, the servos can adjust the trim speed based on the current aircraft airspeed. This allows the trim
to run slower at high airspeeds and faster at low airspeeds. When the autopilot is engaged in the air, the
servos can adjust the trim control to minimize the force on the primary controls. This helps ensure the
aircraft will be properly trimmed when the autopilot is later disengaged.
During the flight test phase, the trim system is configured and set up after the primary autopilot
performance has been properly configured. This is done so the pilot can focus on properly adjusting the
performance of the primary autopilot system without having the auto-trim functionality interfere.
NOTE
Ensure basic autopilot functionality is properly adjusted before enabling trim control for
any servo.
190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout
Rev. AA Page 32-97