The next-generation Genesys Aerosystems S-TEC 3100 Digital Flight Control System (DFCS) is a fully-featured, attitude-based autopilot that gives you a list of workload-reducing and safety-enhancing capabilities that were previously unavailable on aftermarket autopilots.


Compatible with advanced digital sources & EFIS displays from Garmin, Aspen, and others, the S-TEC 3100 delivers unmatched features and benefits:


  • Precise, digital flight control for every phase of flight
  • 2-axis (3-axis option on some models)
  • Automatic Trim included
  • Envelope Protection/Alerting*
  • Straight and Level Recovery
  • Precision Approaches/Missed Approaches
  • Indicated Airspeed Hold*
  • Altitude Preselect*
  • GPS enroute VNAV**
  • And much more!


*Additional equipment may be required in some configurations
**Requires compatible GPS source and EFIS. Currently, only the Garmin GTNTM Navigators and TXiTM displays will allow VNAV.



  • Width: 6.25” (159mm)
  • Height: 1.45” (37mm)
  • Depth: 9” (229mm)


  • 2.6 lbs (1.18 kg) (DFCS only)


  • TSO-C198 Automatic Flight Guidance and Control System Equipment (AFGCS)


  • RTCA DO-160G to meet TSO-C198


  • RTCA DO-178C

For Support with an existing installation, please click here

S-TEC 3100 Flight Test