Editing Paddle (section)

==Other types==
On mechanical [[paddle steamer]]s, the motorized paddling is not done with a mass of paddles or oars but by rotating one or a few paddle wheels (rather the inverse of a [[water mill]]).

Racing paddles also have special designs. They are generally less flat and are curved to catch more water, which enable racing paddlers to maximize the efficiency of their stroke. Wing bladed paddles are very popular in kayak racing. A wing paddle looks like a spoon and acts like a wing or sail, generating lift on the convex side, which pulls the paddle forward-outward at the expense of overcoming drag. This gives additional forward thrust as compared with a flat paddle with forward thrust mainly from drag.<ref>Johnson Claes, Hoffman Johan. How a Wing Paddle Works: The secret of lift and drag of a wing paddle [Internet]. Version 1. The World As Computation. 2009 Feb 24. Available from: https://claesjohnsonmathscience.wordpress.com/article/how-a-wing-paddle-works-yvfu3xg7d7wt-33/.</ref> Bent shaft paddles, popular with tripping and marathon canoers, have a blade that is angled from the shaft, usually 12 to 15 degrees.

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Wioslo-10.jpg|A set of wing paddles
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