What is the primary effect of using flaps during flight?

The primary effect of using flaps during flight is to increase lift at lower speeds. Flaps are moveable surfaces located on the wings that, when extended, modify the airfoil shape. This modification enhances the wing's camber, allowing the wing to generate more lift at slower airspeeds. This capability is particularly beneficial during takeoff and landing, where the aircraft operates at lower speeds and requires additional lift to maintain controlled flight.

As flaps are deployed, they also typically increase drag; however, this drag is manageable and considered advantageous during the approach and landing phases because it allows for a steeper descent and slower approach speeds without risking a stall. The increased lift helps the aircraft become more stable and responsive during these critical phases of flight.

Understanding this principle is crucial for pilots, as it directly affects the performance and safety of the aircraft during operations at lower speeds.