Propeller (aircraft) - Hutchinson encyclopedia article about Propeller (aircraft) Printer Friendly
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propeller
(redirected from Propeller (aircraft))

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propeller

Screwlike device used to propel some ships and aeroplanes. A propeller has a number of curved blades that describe a helical path as they rotate with the hub, and accelerate fluid (liquid or gas) backwards during rotation. Reaction to this backward movement of fluid sets up a propulsive thrust forwards. The marine screw propeller was developed by Francis Pettit Smith in the UK and Swedish-born John Ericson in the USA and was first used in 1839.

The airscrew is used to propel piston or turboprop airplanes.



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