Which flight controls manage pitch, roll, and yaw on an ATR aircraft?

• A. The control column and wheel operate elevator/pitch, the ailerons control roll, and the rudder controls yaw, all driven by hydraulic actuators.
• B. Rudder for pitch, elevator for roll, and ailerons for yaw.
• C. Elevator only controls pitch; roll and yaw are controlled by the stick.
• D. Ailerons for pitch, rudder for roll, and elevator for yaw.

Answer: (A)

Pitch is controlled by the elevator on the horizontal stabilizer, which tilts to raise or lower the nose. Input from the control column (and the pitch trim wheel) moves the elevator, giving you nose-up or nose-down guidance and helping hold a steady attitude.

Roll is controlled by the ailerons on the wings. Deflecting opposite directions, the ailerons increase lift on one wing and decrease it on the other, causing the aircraft to roll to the desired bank angle. The control column drives this movement through hydraulic actuators.

Yaw is controlled by the rudder on the vertical stabilizer. Deflecting left or right, the rudder produces a yaw moment, steering the aircraft's nose left or right. Pedals provide this input, with hydraulic actuation delivering the necessary authority.

All of these surfaces are hydraulically actuated to provide the required force and redundancy in control authority.