Leading-edge slat

Rarity: Common

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Notion

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Science and technology

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What Wikipedia says

A slat is an aerodynamic surface on the leading edge of the wing of a fixed-wing aircraft. When retracted, the slat lies flush with the rest of the wing. A slat is deployed by sliding forward, opening a slot between the wing and the slat.

Excerpt from the Wikipedia article “Leading-edge slat”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Auteur inconnu, Public domain, via Wikimedia Commons.