Garmin G3X Installation Manual page 696

Trim Configuration
The installer must make the following trim configuration selections when setting up the GSA 28 based
autopilot system. These selections are made in configuration mode on the PFD under the AP tab and the
Trim Speed setup screen in the autopilot setup menu in normal mode.
Configuration Setting
Airspeed Threshold
Roll Trim Motor Speed
Pitch Trim Motor Speed
Yaw Trim Motor Speed
190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout
Rev. AA
Table 32-10 Trim Configuration Settings
The GSA 28 servos are capable of airspeed scheduling the aircraft's manual
electric trim.
The Airspeed Threshold Fastest Movement setting is the airspeed in which
the trim motor will be moved at its fastest setting. This should be the lower
of the two airspeeds.
The Airspeed Threshold Slowest Movement setting is the airspeed in which
the trim motor will be moved at its slowest setting. This should be the higher
of the two airspeeds.
The GSA 28 roll servo will control the aileron trim on the aircraft.
The Roll Trim Motor Speed percentage for the Fastest Movement is the
speed in which the roll servo will run the auxiliary trim motor when at or
below the corresponding airspeed.
The Roll Trim Motor Speed percentage for the Slowest Movement is the
speed in which the roll servo will run the auxiliary trim motor when at or
above the corresponding airspeed.
The GSA 28 pitch servo will control the elevator trim on the aircraft.
The Pitch Trim Motor Speed percentage for the Fastest Movement is the
speed in which the pitch servo will run the auxiliary trim motor when at or
below the corresponding airspeed.
The Pitch Trim Motor Speed percentage for the Slowest Movement is the
speed in which the pitch servo will run the auxiliary trim motor when at or
above the corresponding airspeed.
The GSA 28 yaw servo will control the rudder trim on the aircraft.
The Yaw Trim Motor Speed percentage for the Fastest Movement is the
speed in which the roll servo will run the auxiliary trim motor when at or
below the corresponding airspeed.
The Yaw Trim Motor Speed percentage for the Slowest Movement is the
speed in which the roll servo will run the auxiliary trim motor when at or
above the corresponding airspeed.
Figure 32-34 Trim Configuration Page
Description
Page 32-101