Which statement best describes the rudder's role in turning coordination?

• A. It controls roll about the longitudinal axis
• B. It provides yaw control and is used with ailerons to coordinate turns
• C. It increases lift during takeoff
• D. It reduces drag during descent

Answer: (B)

Coordinated turns rely on controlling yaw to keep the nose aligned with the flight path as you bank. The rudder provides that yaw control and is used with the ailerons to coordinate turns. When you roll into a bank with the ailerons, lift tilts and the airplane tends to yaw in the opposite direction due to adverse yaw and other aerodynamic effects. The rudder counters this by yawing the nose into the turn, helping the aircraft follow a smooth circular path and keeping the turn coordinated (the ball stays centered). The rudder’s job is not to roll the wings (that’s the ailerons), nor to increase lift during takeoff, nor to reduce drag during descent; those effects come from other controls and flight conditions.