Press the yoke-mounted AP DISC switch. The autopilot must immediately disengage, accompanied by an audible alert and flashing display indicators. 6. Flight Testing and Troubleshooting
Before beginning the installation process, it is essential to review the S-tec 55x installation manual and ensure that you have the following:
Each component must be carefully inspected and identified to ensure correct installation. S-tec 55x Installation Manual
Engage the autopilot on the ground. Override the autopilot manually by pulling the yoke. The servo clutches must slip under a specific torque limit (detailed in the manual supplement) to ensure the pilot can safely override the system in an emergency.
Altitude Selector/Alerter, Electric Trim, and Yaw Damper. Critical Installation Resources Press the yoke-mounted AP DISC switch
The pitch and roll servos are the mechanical "muscles" of the autopilot, moving the aircraft's control surfaces.
Provides the primary rate-based input for the roll axis. The servo clutches must slip under a specific
Once installed, the system must undergo specific bench and flight line tests: S-TEC 55x installation guide (wiring) - BeechTalk.com
Before beginning any physical work, a thorough review of the aircraft’s current configuration and the specifics of the S-TEC 55X system is essential. The 55X is more than just a computer; it integrates with several aircraft systems to provide full functionality. A typical installation includes a flight guidance programmer/computer, an altitude encoder, an altitude selector/alerter, a turn coordinator, and a Heading System (DG or HSI).
Secure the bridle cables to the primary aircraft flight control cables using the specified clamps. Ensure the aircraft controls can move from stop to stop without the bridle cable rubbing against structural ribs. Pitch and Pitch Trim Servo Installation
The central processing unit houses the control interface, display, and internal rate gyros. It must be mounted in the instrument panel within easy reach of the pilot. 2. Turn Coordinator / Roll Axis Sensor
