Wing

<p>A wing is a type of <a href="/facts/Fin/0NMSclCt">fin</a> that produces both <a href="/facts/Lift_(force)/ehQKKaWP">lift</a> and drag while moving through air. Wings are defined by two shape characteristics, an <a href="/facts/Airfoil/2d3l6hKd">airfoil</a> section and a <a href="/facts/Planform_(aeronautics)/oB03eltD">planform</a>. Wing efficiency is expressed as <a href="/facts/Lift-to-drag_ratio/yTDYBok1">lift-to-drag ratio</a>, which compares the benefit of lift with the air resistance of a given wing shape, as it flies. <a href="/facts/Aerodynamics/Cn6Lnl3H">Aerodynamics</a> is the study of wing performance in air.
</p><p>Equivalent <a href="/facts/Foil_(fluid_mechanics)/6bGLTJEX">foils</a> that move through water are found on <a href="/facts/Hydrofoil/snHVfw8F">hydrofoil power vessels</a> and <a href="/facts/Sailing_hydrofoil/kqyD2Kkc">foiling sailboats</a> that lift out of the water at speed and on <a href="/facts/Submarine/6fhcAKHV">submarines</a> that use <a href="/facts/Diving_plane/9dSwW6RN">diving planes</a> to point the boat upwards or downwards, while running submerged. <a href="/facts/Hydrodynamics/y7uzSCfg">Hydrodynamics</a> is the study of foil performance in water.
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Wing open-in-new

Wing