Fusing Tech With Tradition

The STC Group LLC designs and obtains regulatory approvals for the installation in certificated aircraft of autopilots manufactured by Trio Avionics. The same outstanding warranty support that Trio Avionics provides to the Experimental community is provided for certificated aircraft. Visit Trio Avionics Website


Recent Updates

The FAA has issued a Supplemental Type Certificate for installation of the Trio Pro Pilot autopilot in all models of Cessna 172, 175, 177, 180, 182, 185, Piper PA-28, and Grumman AA-5, AA-5A, AA-5B, and AG-5B.

The Cessna 190 and Cessna 195 effort is well underway with flight testing and documentation submittal expected the week of July 23rd.

The Cessna 210 effort is underway. The STC Group LLC will submit the STC Application for the Cessna 210J model immediately after AirVenture 2018.

If you would like your Cessna 205 or 210 considered for addition to the Cessna 210 STC please contact Paul Odum at The STC Group LLC. Paul will be happy to make the proper arrangements.

The STC for the Piper PA-32 is expected Fall or Winter 2018.

To order, contact Gwena Odum at The STC Group LLC, +1 (805) 624-1516, or Trio Avionics at (619) 448-4619.

The STC Group is now taking orders for:

Cessna 172, 175, 177, 180, 182, 185, 190, 195, Piper PA-28, PA-32, and Grumman AA-5 models.



+1 888-350-2998
+1 231-220-9296