Slotted flaps are aerodynamic devices found on the wings of aircraft, designed to improve lift during takeoff and landing. They work by creating a slot between the flap and the wing, allowing high-energy air to flow from the wing's upper surface to the lower surface. This helps delay airflow separation, enhancing the wing's performance at lower speeds. These flaps can be extended to increase the wing's surface area, providing additional lift. By using slotted flaps, pilots can achieve safer landings and takeoffs, especially in larger aircraft like the Boeing 747 or Airbus A380, where managing lift is crucial.