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Propeller Terminology

The Michigan Wheel guide to understanding propellers. Here you will find everything from propeller parts to terminology that will help you understand how boat propellers work.

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Cylindrical Section

A cross section of a blade cut by a circular cylinder whose centerline is the propeller axis of rotation.

Propeller Terms

Blade Blade Tip Cavitation Constant Pitch Propeller Controllable Pitch Propeller Cup Cylindrical Section Diameter Fixed Pitch Propeller Geometric Pitch Angle Hub Leading Edge Non Thru-Hub Exhaust Over-Hub Exhaust Over/Thru-Hub Exhaust Pitch Pitch Reference Line Radius Rake Rotation Skew Slip Thru Hub Exhaust Track Trailing Edge Variable Pitch Propeller Ventilation

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