Propeller of Plane Engine

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A propeller is a rotating device used to convert the rotational motion of an engine into thrust, which propels an aircraft or boat forward. It typically consists of a set of two or more blades mounted on a central hub. The blades are angled or twisted in a way that creates a difference in pressure between the forward and rear surfaces of the blade as it rotates, generating thrust.Propellers can be designed with different numbers of blades and blade shapes depending on the specific application and performance requirements. The shape and pitch of the blades are carefully designed to optimize the efficiency of the propeller, balancing factors such as thrust, speed, and noise.Propellers are commonly used in aircraft, where they are driven by a piston engine, a turboprop engine, or an electric motor. They are also used in marine applications, where they are driven by a diesel engine or a gasoline engine. Propellers can be fixed-pitch, which means the angle of the blades cannot be changed, or variable-pitch, where the angle of the blades can be adjusted in flight or on the water to optimize performance.