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 STC is expected from our friends at the FAA ACO just before Christmas.

The STC application for the Piper PA-32 will be submitted before the end of 2018. STC and PMA approvals should be completed 1st quarter 2019.

The Cessna 210 effort is underway. The STC Group LLC will submit the STC Application for the Cessna 210K and prior  models in January 2019.

The STC Group LLC has completed flight test of the Socata Trinidad line of aircraft. STC submittal is expected in January 2019.

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, 205, 210, Piper PA-28, PA-32, Grumman AA-5, Socata TB 9, TB 10, TB 20, TB 21, & TB 200.



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