Flaps are generally used during which phases of flight?

Flaps are a crucial aerodynamic feature on an aircraft primarily used to enhance lift at lower speeds during critical phases of flight, specifically takeoff and landing. When extended, flaps increase the curvature and surface area of the wing, allowing pilots to generate the necessary lift to safely depart from and arrive at the runway under conditions where the aircraft might otherwise struggle to maintain flight at lower speeds.

During takeoff, flaps enable a plane to reach the required lift-off speed at a lower airspeed, which can help shorten the distance required for takeoff. Similarly, during landing, flaps create additional lift while also increasing drag, helping to control the aircraft's descent rate and facilitate a more stable approach to the runway without the need for excessive speed.

The phases of flight that involve significant changes in speed and altitude require precise control, making the deployment of flaps vital. In contrast, during cruise—and to some extent climbing—flaps are typically retracted because they are not needed once the aircraft reaches sufficient speed and altitude to maintain lift efficiently. The use of flaps is not relevant during taxiing, as the aircraft is on the ground, and aerodynamic forces are not a factor. Thus, the choice emphasizing takeoff and landings accurately reflects the primary operational