The T-6B flap system uses how many segments?

• A. Two
• B. Three
• C. Four
• D. Five

Answer: (C)

Flaps are high‑lift devices that increase wing camber and the wing area available to generate lift at lower speeds. On many trainers, the trailing edge is divided into several movable panels, and these panels extend together when the flaps are selected.

The T-6B uses four separate flap segments. This four‑segment arrangement allows the flaps to cover a larger portion of the wing and extend in a coordinated way, producing more lift and a smoother, more predictable change in lift as the flaps deploy or retract. With four segments, the lift distribution along the wing during approach and landing is more even, helping maintain control at slow speeds. When the flaps retract, all four segments return to their flush position.

Two or three segments would leave portions of the wing less covered by the flaps, giving less lift or less uniform loading, which is why four segments is the correct design for this system.