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What is the function of the rudder in an aircraft?

  1. To adjust the pitch during takeoff

  2. To maintain coordinated flight

  3. To stabilize the wing position

  4. To reduce drag during descent

The correct answer is: To maintain coordinated flight

The rudder's primary function in an aircraft is to maintain coordinated flight, especially during turns. It controls the yaw of the aircraft, helping to align the aircraft's nose with the relative wind and maintain balance when turning. This is crucial in preventing adverse yaw, which occurs when the aircraft tends to turn in the opposite direction of the intended turn due to differences in lift and drag on the wings. By employing the rudder effectively, pilots ensure smoother and more controlled maneuvers. The other options, while related to aircraft control, do not accurately describe the role of the rudder. Adjusting pitch during takeoff relates more to the elevator, which controls the aircraft's nose up or down. The stabilization of wing position also pertains to other control surfaces, such as ailerons. Reducing drag during descent is primarily managed through various aerodynamic techniques rather than rudder use.