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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Over/Thru-Hub Exhaust

Over/Thru-hub exhaust propellers are a combination of thru-hub and over-hub exhaust propellers. This allows some exhaust to escape at lower RPMs, providing a controlled amount of exhaust flooding. These types of propellers will allow the propeller to be slightly easier to turn during initial acceleration, allowing for a better hole shot on some engine/boat combinations.