Has anyone installed the Garmin GSA 28 Autopilot Servos in a 750 or 701?

If not, how about the Dynon servos, as I am sure they are similar?  Just wanted to get ahead of the game with suggested mounting points and techniques.



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Hi Jeff,

I have the Garmin GSA 28 servos on the roll and pitch in my 750. I have modified my control system so my procedures likely won’t do you much good. However, my buddy installed the same system on his 750 (unmodified control system). They are pretty straight forward to install, especially if you purchase the optional installation kit and mounting bracket(s). We mounted the roll servo on the back of the baggage well skin and my buddy mounted his pitch servo to the floor of the fuselage just behind the hell hole opening. It will need a long push rod to do this.

There is a thread on this exact subject elsewhere in this forum but I can’t find it. If you can find the thread it should help you (if I remember correctly there were a number photos in the thread).

Good luck,


Thanks for your reply, Joe.


Funny, I have a brother-in-law named Joe Harrington.....


Could not find the thread you mentioned.  Any chance you have pics of your buddies 750 servo install?








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