Which component located in front of the wings increases surface area to improve low-speed performance?

Which component located in front of the wings increases surface area to improve low-speed performance?

• A. Slats
• B. Wings
• C. Airfoil
• D. Horizontal stabilizer

Answer: (A)

Leading-edge slats are the device that sits in front of the wing and can extend outward. When deployed, they extend the leading edge, creating a slot between the slat and the main wing. This increases the effective lifting surface and camber at the front, energizing the airflow over the wing so it can generate more lift at lower speeds and delay stall. That’s why they’re used to improve low-speed performance during takeoff and landing. Wings describe the whole lifting surface, not a front-mounted component. An airfoil is the wing’s cross-section, not a separate piece in front of the wing. The horizontal stabilizer is a tail surface, not located in front of the wings.

Leading-edge slats are the device that sits in front of the wing and can extend outward. When deployed, they extend the leading edge, creating a slot between the slat and the main wing. This increases the effective lifting surface and camber at the front, energizing the airflow over the wing so it can generate more lift at lower speeds and delay stall. That’s why they’re used to improve low-speed performance during takeoff and landing.

Wings describe the whole lifting surface, not a front-mounted component. An airfoil is the wing’s cross-section, not a separate piece in front of the wing. The horizontal stabilizer is a tail surface, not located in front of the wings.