Leading edge

Leading edge is a line connecting the forward-most points of wing's profiles. In other words, it's the front edge of the wing. When in motion, the leading edge is that part of the wing, which first contacts the air - it can be said that e.g. during tailslide, from the aerodynamics point-of-view, the trailing edge becomes the leading edge and vice-versa.

Related Topics:
Wing - Tailslide - Trailing edge

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The leading edge may be equipped in one or more of the following:

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• leading edge extensions,
• slats,
• slots
• stall strips
• a leading edge cuff
• vortex generators.

The leading edge of a wing can be perpendicular to the air, in which case it is called a straight wing. If it meets the air at an angle it is referred to as a swept wing. Some aircraft, like the General Dynamics F-111 have moving wings which are referred to as swing wings.

Related Topics:
Straight wing - Swept wing - General Dynamics F-111 - Swing wings

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In high speed aircraft (such as Space Shuttle), air friction can cause extreme heating of the leading edge. This was the cause of the accident of Space Shuttle Columbia during re-entry on February 1, 2003. The accident was preceded by a small amount of damage to RCC tiles on the leading edge, which occurred during take-off.

Related Topics:
Space Shuttle - Space Shuttle Columbia - February 1 - 2003 - RCC

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