System 55X

Part No: System 55X

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The S-Tec System 55X incorporates the GPS Roll Steering and tracking with glide slope capture and track, VOR/localizer/back course intercept and tracking, and vertical speed commands. The System 55X Computer/Programmer has an LCD digital display and is designed for mounting in the standard avionics stack. Options include heading pre-select, auto-trim, altitude pre-select, remote annunciator and flight director. Panel unit: 6.25"W x 1.5"H x 8.5"D.

  • Lighted 3” Turn Coordinator
  • Avionics Stack Mounted
  • Control Wheel Steering
  • HDG Preselect & Hold (HDG SYSTEM NOT INCLUDED)
  • Altitude Hold with Altitude Trim
  • Course Intercept Capability
    • NAV Mode
    • Dual Mode - HDG/NAV or HDG/APR
  • VOR/LOC/GS/REV/GPS Coupling with 3 Gain Levels
  • VOR/LOC/GS/REV/GPS Course Deviation and NAV Flag Warning
  • Digital Vertical Speed Command
  • Pitch Trim Annunciation
  • GPSS Mode
  • Flight Director Compatible

The Model 55X is a pure rate-based two-axis autopilot offering you smooth precise, dependable performance. Combining the programmer, computer, annunciator, and servo amplifier functions into one compact panel mount unit, the System 55X is the first S-Tec autopilot system designed specifically to be integrated into the aircraft radio panel with other avionics. It is also the first S-Tec system to feature control wheel steering.

The System 55X roll axis has heading select, VOR/Localizer front and back course intercept and tracking. It can be interfaced with RNAV, GPS, or Loran systems. The System 55X Flight Guidance Programmer/Computer converts pilot commands to logic signals for roll and pitch computer functions. Altitude Hold with Altitude Trim.

Questions & Answers

See below for answers to our most popular questions.

Have a Question?

  • Can the GENESYS AEROSYSTEMS/S-TEC 55X Computer/Programmer replace my STEC 60-2 computer and work with my existing servos, auto-trim and yaw damper setup?

    There is not an upgrade path for you to the 55X. However, there is an upgrade path to the 3100 system.

    Please send the following info our installation sales manager and he will be able to get you pricing and timeframe.

    Aircraft make, model, tail #, and your contact information. Matt's contact information is listed below.

    Matt Schloss
    Installation Sales Manager

System 55X


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