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propeller
Sign in to savethumb|upright=1.35|A 'right-handed' propeller on a merchant vessel, which rotates clockwise to propel the ship forward. The man's hand rests on the trailing edge. thumb|upright=1.35|Propeller of Pratt & Whitney Canada PW100 [[turboprop mounted on Bombardier Q400]]
A propeller is a rotating device with angled blades that pushes vehicles forward by moving through air or water, commonly found on ships and aircraft. It works by spinning to create force that propels the vessel or plane in the desired direction.
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~25 min read
Article
26 sectionsContents
- History
- Early developments
- Screw propellers
- Aircraft
- Theory
- Propeller geometry
- Cavitation
- Types of propellers
- Variable-pitch propeller
- Skewback propeller
- Modular propeller
- Voith Schneider propeller
- Shaftless
- Toroidal
- Damage protection
- Shaft protection
- Weed hatches and rope cutters
- Propeller variations
- See also
- Propeller characteristics
- Propeller phenomena
- Other
- Materials and manufacture
- Notes
- Citations
- External links
thumb|upright=1.35|A 'right-handed' propeller on a merchant vessel, which rotates clockwise to propel the ship forward. The man's hand rests on the trailing edge. thumb|upright=1.35|Propeller of Pratt & Whitney Canada PW100 [[turboprop mounted on Bombardier Q400]]
A propeller (often called a screw if on a ship or an airscrew if on an aircraft) is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon a working fluid such as water or air. Propellers are used to pump fluid through a pipe or duct, or to create thrust to propel a boat through water or an aircraft through air.