Which option best describes the primary function of yaw dampers?

• A. Improve Lateral Stability
• B. Autopilot yaw control
• C. Increase climb performance
• D. Improve cabin comfort

Answer: (A)

Yaw dampers are stability augmentation devices that automatically counter undesired yaw motions to keep the airplane steady in the lateral plane. They sense yaw rate and use small, rapid rudder inputs to subtract energy from the turning motion, which dampens oscillations like Dutch roll and makes the aircraft feel more stable during maneuvers and in gusty conditions. This automatic action improves lateral stability and handling without the pilot having to manually input rudder constantly. It’s related to, but distinct from, autopilot yaw control—the yaw damper works continually in the background to stabilize, while the autopilot can command broader flight path control. It doesn’t directly change climb performance or cabin conditions; its primary role is reducing yaw oscillations to improve stability and passenger comfort as a secondary benefit.