What effect does a high AOA setting have when combined with flaps, slits, or slots?

A high Angle of Attack (AOA) setting when combined with flaps, slits, or slots has a significant aerodynamic effect. Specifically, this combination increases the coefficient of lift. Flaps, slits, and slots are designed to enhance the lift characteristics of an aircraft by modifying the airflow over the wings. When the AOA is high, these devices can be particularly effective in maintaining lift even as the aircraft slows down.

In practical terms, increasing the coefficient of lift means that the aircraft can achieve the same amount of lift at a slower speed, which is crucial during slow flight maneuvers such as landing or takeoff. Moreover, this increased lift capability helps to reduce the stall speed, allowing the aircraft to operate safely in lower speed ranges without losing lift. Therefore, by using a high AOA together with these lift-enhancing devices, pilots can improve aircraft performance during critical phases of flight.