55x Installation Manual Repack: S-tec

While primarily for operation, the POH includes essential Pre-Flight and Power-Up Tests (Section 2) required to verify a successful installation.

: Roll, Pitch, and optional Trim servos secured via aluminum brackets. Absolute Pressure Transducer for altitude data and an Accelerometer.

Verify your specific aircraft tail number is on the Approved Model List (AML). S-tec 55x Installation Manual

Engage HDG mode, turn the heading bug right, and verify the control yoke turns smoothly to the right without catching or reversing. 6. Flight Testing and Calibration

[Control Yoke] <=====> [Bridle Cable] <=====> [Main Aircraft Cable] ^ | (Clamped securely) [Servo Capstan] Servo Mounting and Alignment While primarily for operation, the POH includes essential

When integrating the S-TEC 55X with a modern Primary Flight Display (PFD) like an Avidyne Entegra or Envision, additional steps are required. This often involves aligning the VOR/LOC navigation output from the PFDs to the autopilot. The procedure generally begins by powering up the relevant IFD and the S-TEC 55X, selecting NAV mode on the autopilot computer, and then performing an alignment procedure using a screwdriver inserted into the slotted hole on the autopilot computer's front bezel. This alignment may require several minutes and multiple adjustments, and it is crucial to allow the system time to settle between adjustments. For autopilot checkout, the roll centering adjustment must be performed as described in the autopilot's troubleshooting guide (e.g., S-Tec PN 87248) before proceeding with in-flight tests.

Intercepts the aircraft’s existing static pressure line. It must be leak-tested in accordance with 14 CFR Part 43 Appendix E. 3. Electrical Wiring and Pinout Architecture Verify your specific aircraft tail number is on

: Must use shielded wire where indicated; grounding must occur only at specified points to prevent interference.