Garmin announced the addition of more airplane models to its STC for installation of the GFC 500 autopilot. The STC, which requires installation of Garmin’s G5 electronic flight instrument, now includes the Beechcraft Bonanza S35 and V35 through V35B, and Piper PA28-150 through -181. The next airplanes to be added include the Grumman AA-5 through AA-5B/AG-5B; Bonanza C33 through G33; Cessna 210L through T210N; and the Mooney M20 and Piper PA32 (specific models to be determined).

The GFC 500 starts at $6,995. With a G5, price without installation is less than $10,000. Some of the GFC 500 features include altitude pre-select; indicated airspeed hold mode; Garmin’s Level Mode button for recovery to straight-and-level; Garmin Electronic Stability & Protection, which works even when the autopilot is off to help pilots avoid too-steep bank and pitch angles; underspeed and overspeed protection; built-in GPS roll steering; and coupled go-arounds.