See also: Wing (homonymy)
A wing is small a Aile; its role is not forcing to produce a Sustentation or a Appui S and thus often does not have a profile of wing, more usually it is only a Feuille punt of Métal or a Matériau appropriate to its function.
In the case of a plane, the vertical wings ( winglet in English) in end of wings make it possible to reduce the marginal Tourbillon and to thus decrease the induced Traînée.
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