What is krueger flap?

Krueger flaps are a type of high lift device integrated into the leading edge of aircraft wings. These flaps are typically hydraulically operated and extend downward from the wing skin when engaged. Their purpose is to increase the camber of the wing at low speeds, thereby increasing lift and reducing stall speed.

Krueger flaps are named after their inventor, Werner Krueger, a German engineer who developed them in the late 1940s. They were first used on the Boeing 707 and have since been incorporated into a wide range of commercial, military, and general aviation aircraft.

Krueger flaps are particularly useful on aircraft that operate at lower speeds and need increased lift during takeoff and landing. They can also help improve maneuverability during approach and landing, allowing pilots to make steeper descents without experiencing a high rate of descent.

Overall, Krueger flaps are an important component of modern aircraft design, helping to improve safety, efficiency, and performance during critical phases of flight.