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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. The blades are shaped so that their rotational motion …

This is similar to changing gears with a car or bicycle. A ship’s propellers create thrust in water in much the same way an airplane’s propellers create thrust in air. In order for a propeller blade …

Propeller, device with a central hub and radiating blades placed so that each forms part of a helical (spiral) surface. By its rotation in water or air, a propeller produces thrust owing to …

PROPELLER definition: 1. a device that causes a ship or aircraft to move, consisting of two or more blades that spin at…. Learn more.

The meaning of PROPELLER is one that propels; especially : a device that consists of a central hub with radiating blades placed and twisted so that each forms part of a helical surface and …

Jan 30, 2025 · Propellers convert engine horsepower into thrust by accelerating air and creating a low-pressure differential in front of the propeller. Since air naturally moves from high to low …

Jan 21, 2023 · The propellers are long, thin, twisted pieces of wood which are spun at high speed. The propeller blade is shaped like an airfoil and there is a pressure difference created across …

Definition of propeller noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Propellers have two or more blades spaced evenly around the hub and are available in fixed pitch or in variable pitch configurations. More sophisticated propeller designs include those of the …