AS9120B, ISO 9001:2015, and FAA AC 0056B ACCREDITED

How Aircraft Flaps and Slats Enhance Flight Performance

Although their complexity is often overlooked, aircraft wings are more than just static structures. In fact, they are designed to be adaptable and versatile, and two essential components that take wings to a new level of efficiency are aircraft flaps and slats. The presence of flaps and slats allows pilots to optimize the wing's shape during different phases of flight, ensuring safe and efficient operation in an array of conditions.

Aircraft Flaps

Aircraft flaps are movable surfaces on the trailing edge of the wings that can be extended or retracted as needed. For their operations, flaps are primarily employed during takeoff and landing to enhance an aircraft's lift capability and maneuverability.

During takeoff, flaps are extended to increase the wing's surface area, which generates more lift at lower speeds. This allows the aircraft to achieve the necessary lift to become airborne, coinciding with the reduction of the required runway length at certain airports. More than that, flaps provide improved control during the initial climb phase, which guarantees a smooth and safe ascent.

When it is time to land, flaps are deployed to slow the aircraft down while maintaining lift. As the flaps are extended, the wing's curvature is altered, which increases drag and reduces the aircraft's stalling speed. This enables the airplane to achieve a controlled descent and touch down at a safe speed, even on shorter runways.

To accommodate the needs of numerous aircraft models, there are several types of flaps that designers can choose from. However, some of the most popular variations include plain flaps, slotted flaps, and Fowler flaps, each offering distinct advantages based on the aircraft's requirements and operating conditions.

Aircraft Slats

Similar to flaps, aircraft slats are movable surfaces located along the leading edges of the wings. Specifically situated ahead of the main wing's leading edge, they can be extended or retracted as needed. In particular, slats are known for improving an aircraft's lift performance, especially during takeoff and landing.

During takeoff, slats are extended to create a slot between the slat and the main wing. This slot allows high-pressure air from below the wing to flow over the top, maintaining ample lift even at lower speeds. As a result, the aircraft can achieve the necessary lift for takeoff at lower speeds, which is particularly beneficial during shorter runways or high-altitude airports.

During the landing phase, slats help maintain lift at lower speeds, ensuring a safe descent and touch down. By deploying the slats, pilots can alter the wing's curvature, enabling the aircraft to fly at lower speeds without stalling.


All in all, aircraft flaps and slats are essential elements that contribute significantly to an aircraft's flight performance and safety. Combined with other advanced aerodynamic technologies, flaps and slats ensure that modern aircraft are not only engineering marvels, but also provide passengers with a smooth and secure flying experience. When you find yourself in need of high-quality aircraft flaps and slats, connect with the experts at Integrated AOG. As a leading distributor of aviation-grade products, you can trust in us to meet your wide-ranging aircraft requirements. To get started, fill out and submit an RFQ form as provided across our website, and let our experts handle the rest!



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