Definition of wing sail in English:

wing sail

Syllabification: wing sail

noun

  • A rigid or semirigid structure similar to an aircraft wing fixed vertically on a boat to provide thrust from the action of the wind.
    More example sentences
    • The biggest problem is how to design a rigid wing sail with minimal weight and complexity penalties.
    • Alex, I agree that in lighter winds a rigid wing sail will not outperform a conventional sail.
    • The aerofoil wing sails may be symmetrical with a fixed camber, or may be asymmetrical with an adjustable camber.

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Word of the day skosh
Pronunciation: skəʊʃ
noun
a small amount; a little