Propeller Characteristics - Rotation
Left-handed Props
 Two propellers spinning the same direction on twin engine boats will create steering torque. In other words, two right-hand (or standard rotation) propellers pull the stern hard to the right and the bow to the left.

Two opposite-direction propellers on twin engines eliminate this steering torque because the left-hand (or counter rotation) propeller balances out the right-hand propeller. This results in better straight-Line tracking and helm control at high speed.
Opposite-direction propellers on twin engines eliminate steering torque because the left-hand prop balances out the right-hand propeller.
Learn All About Propellers Here!
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
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. 		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.