View Full Version : GSA 26 autotrim

03-23-2018, 01:11 PM
My current setup has MAC S8 servos with Matronics MkIII governor speed controls from a single coolie hat switch for pitch & roll trim. I am installing a G5 with autopilot. When wiring the GSA 28 for autotrim do I connect the output from the speed control to the servo then from the servo to the motor? The print says to connect pins 11 & 12 to the switch. Not sure if I leave the governors installed should the GSA 28 fail?

03-23-2018, 11:51 PM
You need to keep the relay. The output of the relay goes to the AP Servo.

03-24-2018, 08:05 AM
Ditch the MKIII Gov and install some type of trim relay like the ray allen or one of the aftermarket units.
You can't have a PWM speed controller driving the GSA28 trim.