PSA Airlines Canadair Regional Jet Systems (PSA-CRJ) Practice Exam

Which component commands the YAW DAMPERS to prevent Dutch Roll?

1. The Pilot

2. The Yaw Sensors

3. The Flight Control Computers

4. The Throttle Quadrant

The correct answer is: The Flight Control Computers

The component that commands the YAW DAMPERS to prevent Dutch Roll is the Flight Control Computers. These computers play a crucial role in the aircraft's stability and control systems. They process information from various sensors, including yaw sensors, and provide real-time inputs to the yaw dampers to counteract unwanted oscillations known as Dutch Roll. Dutch Roll is a type of oscillation that can occur in swept-wing aircraft and is characterized by a combination of yawing and rolling movements. To manage this phenomenon, the Flight Control Computers continuously monitor the aircraft's attitude and heading, using data from the yaw sensors to determine when corrective actions are needed. By adjusting the yaw dampers’ inputs, the Flight Control Computers help maintain stability and control during flight. Although the pilot can influence yaw through control inputs, the automation provided by the Flight Control Computers is specifically designed to continuously manage the yaw dampers for stability without requiring constant pilot intervention. Other components, like the throttle quadrant, do not directly interact with the yaw dampers or control dynamics related to Dutch Roll.