leading-edge extension

A leading-edge extension is a small extension to an aircraft wing surface, forward of the leading edge.

The paper also explains the combination of canard, leading-edge extension, and body lift for enhancing lift.

These are often called simply leading-edge extensions (LEX), although they are not the only kind.

A leading edge cuff is an wing leading edge modification, usually a lightly drooped outboard leading-edge extension.

It would appear that the original configuration was not successful as by 1910 the machine sported large leading-edge extensions on both upper and lower wings to provide increased lift.

The Lockheed Martin F-22 Raptor has chines that lead to the leading-edge extensions that are blended into the engine air intakes.

The engines are fed through wedge-type intakes fitted under the leading-edge extensions (LERXs), which have variable ramps to allow high-Mach speeds.

Aerodynamic innovations included variable-camber wings and exploitation of the vortex lift effect to achieve higher angles of attack through the addition of leading-edge extension devices such as strakes.