Propeller Basics - Pitch

Pitch

Pitch is a measurement of how far the propeller moves forward during one full revolution -assuming there is no "slippage" between the propeller blade and the water.

For most boats, there is slippage and therefore the distance advanced is less than the design pitch. The amount of slippage varies from boat to boat.

Pitch is the second number listed in the propeller description.
Pitch is the forward movement of the propeller after one revolution assuming there is not slippage.
Propeller Help Guide
P is for Propeller Propeller Basics
How To Choose A Prop
Diameter Pitch
Cupping Rake
Ventilation Cavitation

We tell you everything you need to know about props from cupping to ventilation.

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3 Blades VS. 4 Splines
Left-Handed Props
Performance Exhaust
Aluminum vs. Stainless Steel

If you want to modify your boat's performance, consider the above before making your selection.

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Effect of pitch on RPM
Test for Maximum RPM



For safety and efficient performance, it is critical that your engine operates within the RPM range recommended by the manufacturer.