What is a purpose of leading-edge flaps?

Leading-edge flaps are designed to increase the camber of the wing, which in turn enhances the lift characteristics of the aircraft, especially during lower airspeeds or high angles of attack. By increasing camber, these flaps modify the shape of the wing, creating a more pronounced curve that allows for greater airflow over the wing surface. This effect is crucial during takeoff and landing phases, where maximizing lift is essential for safe and efficient operation.

Although leading-edge flaps also influence other aerodynamic factors, such as delaying airflow separation and improving stall characteristics, the primary purpose is indeed to increase camber. This adjustment helps the aircraft maintain lift at lower speeds and aids in handling during critical phases of flight.