Park Rapids Avionics Products
S-TEC Yaw Damper Computer
This part number designates a remote-mounted autopilot yaw computer and servo amplifier assembly manufactured by S-TEC Corporation (Genesys Aerosystems). It serves as the primary processing brain for managing lateral directional stability, interfacing directly with high-end automated flight control installations like the S-TEC System 1500 or operating as the core module for a stand-alone S-TEC Yaw Damper Kit.
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
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- Automated Yaw Stabilization: Continuously processes aircraft directional rate data to sense external aerodynamic shifts, commanding subtle rudder actions to neutralize uncoordinated tail wagging or fish-tailing tendencies before the pilot notices them.
- Integrated Servo Amplification: Functions as an all-in-one computer and power amplifier loop, taking low-level sensor signals and boosting them into heavy-duty electrical output currents capable of driving physical rudder actuator servos.
- Accelerometer-Based Deflection: Utilizes internal solid-state sensing mechanisms to monitor lateral acceleration and yaw rates, ensuring highly responsive, smooth rudder inputs during turbulence or engine-out scenarios on multi-engine aircraft.
- Isolated Fuselage Fitment: Housed in a rigid, industrial-grade metallic enclosure built for remote installation under cabin floors or inside tailcones, defending internal tracking circuits from environmental thermal sweeps and engine harmonics.
Additional information
| Serial Number | 1139A |
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