CPL » Principles – Aeroplane » Lift Augmentation
22.12 Lift Augmentation
22.12.2 Explain the basic purpose of lift augmentation devices.
Lift augmentation devices are used to enhance the lift produced by an aircraft's wings.
They work by altering the airflow around the wings.
Some common lift augmentation devices include:
- flaps,
- slats and slots.
The devices aim to provide lift at low speeds and high angles of attack.
22.12.4 Explain the basic principles of trailing and leading-edge flaps.
Trailing Edge:
Trailing-edge flaps are located on the rear edge of the wings and can be extended or lowered during takeoff and landing.
When these flaps are deployed, they increase the curvature of the wing, which helps to generate more lift.
Trailing-edge flaps are particularly effective at reducing the stall speed of the aircraft and improving its maneuverability at low speeds.
Leading Edge:
Leading-edge flaps are positioned on the front edge of the wings.
These flaps can be extended or drooped downward to alter the shape of the wing's leading edge.
By doing so, they create more lift and improve the aircraft's performance during takeoff and landing.
