Screw Propeller

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A propeller is a type of fan which transmits power by converting rotational motion into thrust. A pressure difference is produced between the forward and rear surfaces of the airfoil-shaped blade, and air or water is accelerated behind the blade.

Keywords

propellers, screw propeller, propeller, screw, mechanical device, propellor

Galleries

Machines Parts

Source

Government Printing Office Official Gazette (Washingon, DC: Government Printing Office, 1912)

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