前缘延伸(英语:leading-edge extension,简称LEX)是飞行器机翼前缘向前延伸的部件,主要用于改善大迎角与低空速时的气流,以控制、延缓失速现象。
前缘延伸包括前缘缝翼、前缘锯齿(dogtooth)、前缘翻边(leading edge cuff)、前缘根部延伸(leading-edge root extension)等种类。[1][2]
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空客A318-100的前缘缝翼
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AA-1 Yankee的下垂前缘翻边
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参考文献
- ^ Effects of Wing-Leading-Edge Modifications on a Full-Scale, Low-Wing General Aviation Airplane, Nasa TP 2011
- ^ Green, W. and Swanborough, G.; The complete book of fighters, Salamander, 1994