S-tec: 55x Installation Manual
: Requires a compatible Directional Gyro (DG) or Horizontal Situation Indicator (HSI) with a heading bug for HDG mode. GPS Integration : Supports GPSS (GPS Steering)
The following is a comprehensive guide based on official technical documentation for the Genesys Aerosystems S-TEC 55X , a high-performance, two-axis rate-based autopilot system. 1. System Overview
: Mechanical units (roll and pitch) that drive the control surfaces via linkage or bridle cables. Transducers
Verify that the autopilot completely disengages when pressing: The AP DISC switch on the control yoke. The Avionics Master switch. The dedicated Autopilot Circuit Breaker. Flight Testing and Troubleshooting S-tec 55x Installation Manual
From ensuring proper connector seating in the tray to carefully aligning the analog signals with the aircraft’s PFD, each step is critical to the system's ultimate reliability. By strictly following the official documentation and understanding the system's operational limitations (such as speed and altitude restrictions), owners and technicians can ensure that the S-TEC 55X provides many hours of safe, dependable, and high-performance flight guidance.
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The mechanical portion of the S-TEC 55X installation manual requires meticulous attention to detail, particularly regarding servo orientation and bridle cable rigging. Servo Mounting : Requires a compatible Directional Gyro (DG) or
Before drilling holes or running wires, you must verify that your specific aircraft is approved for the S-TEC 55X installation.
+---------------------------------------------------------+ | S-TEC 55X Control Head | | (Programmer / Computer in Panel) | +---------------------------------------------------------+ | | | v v v +--------------+ +---------------+ +----------------+ | Turn Coord. | | Roll Servo | | Pitch Servo | | (Gyro/Data) | | (S-TEC 0105) | | (S-TEC 0106) | +--------------+ +---------------+ +----------------+ | v +----------------+ | Pitch Trim | | (Optional) | +----------------+ Main Components:
To return the aircraft to service, the installing FAA-certified A&P mechanic or authorized repair station must document the work. This includes updating the aircraft equipment list, filing an FAA Form 3337 (Major Repair and Alteration), and placing the S-TEC 55X Airplane Flight Manual Supplement (AFMS) into the aircraft cockpit. System Overview : Mechanical units (roll and pitch)
This document dictates the exact part numbers of the brackets, capstans, and bridles required for your airframe.
: Systems typically require a minimum of 8 volts for the autopilot and electric trim outputs. 4. Mounting and Mechanical Setup S-TEC 55X | Genesys Aerosystems | Mineral Wells, TX
The Installation Manual dictates a specific procedure for rigging the control cables around the servo capstan:
The Ultimate Guide to the S-TEC 55X Autopilot Installation The S-TEC System 55X is a cornerstone of legacy and modern general aviation avionics. It offers reliable, rate-based autopilot performance for a massive variety of aircraft. However, a successful deployment depends entirely on the precision of its installation.
The , dated October 29, 2013, is the primary document used for installation. It is a 42-page document containing the parts list, wiring diagrams, and mechanical installation instructions for the main kit components. The official installation manual is a proprietary document, legally obtained as part of the complete STC kit from Genesys Aerosystems or an authorized dealer.