What unique system is a Fowler flap attached to?

A Fowler flap is uniquely designed using a track and roller system that allows it to extend and retract while simultaneously increasing the wing's camber. When deployed, the flap moves backward and downward, which not only increases the wing area but also improves the airflow over the wing at higher angles of attack. This feature enhances lift, particularly during takeoff and landing phases, making the aircraft safer and more efficient in low-speed operations.

The functionality of the track and roller system is central to how a Fowler flap operates. It allows for smooth movement and precise positioning of the flap, ensuring that aerodynamic efficiency is maximized. This design differentiation separates it from other types of flaps that may rely on simpler hinge mechanisms or other actuation methods.