System 55X

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.