What is one characteristic of Fowler flaps?

Fowler flaps are designed to enhance the aerodynamic performance of an aircraft by increasing its wing area and camber when deployed. As the flaps extend, they move backward and downward, which not only increases the surface area of the wing but also alters the airflow over the wing to create additional lift. This is particularly beneficial during takeoff and landing, as it allows the aircraft to maintain controlled flight at lower speeds.

Increasing the wing area through the deployment of Fowler flaps contributes to an increase in lift, which is crucial during these phases of flight when lower speeds are common. The ability of these flaps to provide this additional lift is a key factor in their design and use. This mechanism differentiates them from other types of flaps that may not expand the wing area in the same manner.

While it is true that Fowler flaps can increase drag, this is a secondary effect and not the primary characteristic that defines their function. Similarly, they are not limited to high-speed operations; they are actively used during takeoff and landing when the aircraft is flying at relatively lower speeds.