What are the functions of yaw dampers?

What are the functions of yaw dampers?

• A. They prevent Dutch roll in flight
• B. They control bank angle during turns
• C. They modulate engine thrust
• D. They maintain cabin pressurization

Answer: (A)

Yaw dampers are stability augmentation devices that suppress yaw-related oscillations. In some aircraft, yaw motion can couple with roll to produce Dutch roll, a back-and-forth yawing and rolling motion that can grow if not controlled. The yaw damper senses yaw rate (and sometimes sideslip) and automatically applies corrective rudder input to damp the motion, helping keep the airplane directionally stable and reducing the risk of an ongoing Dutch roll. This function is focused on yaw and directional stability, not on controlling bank angle during turns, engine thrust, or cabin pressurization.

Yaw dampers are stability augmentation devices that suppress yaw-related oscillations. In some aircraft, yaw motion can couple with roll to produce Dutch roll, a back-and-forth yawing and rolling motion that can grow if not controlled. The yaw damper senses yaw rate (and sometimes sideslip) and automatically applies corrective rudder input to damp the motion, helping keep the airplane directionally stable and reducing the risk of an ongoing Dutch roll. This function is focused on yaw and directional stability, not on controlling bank angle during turns, engine thrust, or cabin pressurization.