Propeller Pitch Explained

Blade pitch or simply pitch refers to turning the angle of attack of the blades of a propeller and corresponds to the the forward movement of a propeller during one revolution. 

Changing pitch can modify speed and acceleration while the engine is exerting the same degree of force.  A lower pitch yields good low speed acceleration, while a high pitch optimizes high speed performance and economy.  Determining what pitch of prop you should use can be done by determining your boat's RPMs at full throttle (maximum velocity) and assessing other factors such as the amount of ballast or weight in the boat, elevation, average occupancy, etc.