Park Rapids Avionics Products
S-Tec Autopilot Roll Servo
This part number designates a panel- or airframe-mounted electric autopilot roll servo assembly manufactured by S-TEC Corporation (Genesys Aerosystems). It serves as the primary mechanical actuator for automated lateral control, interfacing directly with S-TEC flight control systems (such as the System 40, 50, 55, 55X, or 60 series) to manage the aircraft's banking and wing-leveling functions. This configuration is built for a 28 VDC nominal power environment and is commonly factory-installed or STC-integrated on high-performance general aviation platforms and light twins.
Description
This unit has been bench tested by an FAA certified repair station and it comes with an 8130 single release dated 06/03/2026.
Key Technical Capabilities
- Lateral Flight Path Tracking: Receives electronic bank-angle commands from the primary flight guidance computer to mechanically adjust the ailerons, ensuring precise tracking of VOR radials, GPS courses, and localizer headings.
- Precision Electromechanical Actuation: Combines a high-efficiency electric motor with internal gear reduction linkages to drive the external pulley mechanism, maintaining continuous structural authority over the primary flight control layout.
- Internal Slip Clutch Safety: Features an integrated mechanical slip clutch designed to safely yield to manual pilot intervention, allowing the flight crew to instantly overpower the autopilot servo in an emergency without jamming the primary control wheel.
- Robust Aluminum Housing: Enclosed in a heavy-duty, corrosion-resistant metallic casing engineered to isolate internal electrical windings, brushes, and tachometer feedback circuits from structural vibration and dust accumulation in unpressurized airframe cavities.
Additional information
| Part Number | 0106-R9 |
|---|---|
| Serial Number | 7833A |
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