Aircraft control surfaces are movable parts on an aircraft's wings and tail that help control its flight. The main types include ailerons, elevators, and rudders. Ailerons are located on the wings and control roll, allowing the aircraft to tilt side to side. Elevators are found on the tail and manage pitch, helping the aircraft climb or descend. The rudder, also on the tail, controls yaw, which is the left or right movement of the aircraft's nose. These control surfaces work together to ensure stable and controlled flight. Pilots manipulate them using the control yoke or stick in the cockpit, allowing for precise adjustments during takeoff, flight, and landing. Proper functioning of these surfaces is crucial for safe and effective aircraft operation.