What component acts as the yaw SAS for the UH-72A?

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Multiple Choice

What component acts as the yaw SAS for the UH-72A?

Explanation:
Yaw stabilization uses a closed-loop system: a sensor detects yaw motion, and an actuator provides the corrective tail-rotor input to damp it. The Smart Electro-Mechanical Actuator is the device that delivers that corrective action on the UH-72A. It’s a self-contained actuator with embedded electronics that takes commands from the flight control system and moves the tail rotor to generate the needed yaw damping. A gyro alone only senses motion; it doesn’t apply any correction. A generic servo isn’t the dedicated yaw SAS component in this aircraft, and the differential is unrelated to providing yaw stability.

Yaw stabilization uses a closed-loop system: a sensor detects yaw motion, and an actuator provides the corrective tail-rotor input to damp it. The Smart Electro-Mechanical Actuator is the device that delivers that corrective action on the UH-72A. It’s a self-contained actuator with embedded electronics that takes commands from the flight control system and moves the tail rotor to generate the needed yaw damping. A gyro alone only senses motion; it doesn’t apply any correction. A generic servo isn’t the dedicated yaw SAS component in this aircraft, and the differential is unrelated to providing yaw stability.

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