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Propeller Characteristics - Blades
Blade Examples
3 blades... or 4?

We recommend 3-blade propellers for recreational boats with 3, 4, and 6 cylinder outboards and I/0 engines.

3-blades provide good "hole shot" and top-speed performance.

We recommend 4-blade propellers for bass boats and those with high performance hulls running high horsepower outboard engines.

Compared to 3 blades, 4-blade boat props provide better "hole shot" performance with less steering torque and less vibration at high speeds.

When switching from 3 to 4-blades, generally a 1" pitch decrease is required. So, a 21" pitch 3-blade is replaced with a 20" pitch 4-blade. Pitch is increased when switching from 4 to 3-blades.


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.

Learn About Prop Characteristics
Prop Characteristics
3 Blades VS. 4 Splines Aluminum vs. Stainless Steel Performance Exhaust Left-Handed Props FAQ

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

Learn About Engine RPM
Determining RPM's
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.