Out-board and sterndrive propeller 3 blades Tohatsu America
Propellers have two basic dimensions; diameter & pitch. Diameter is the distance measured across the propeller hub line from the outer edge of the circle that is made by the propellerÕs blades during rotation. Pitch is the distance that a boat will travel if rotated one revolution without any slippage. When describing a propeller both the diameter and pitch are given. The diameter is referenced first and the pitch is second. Therefore, a 12'' x 9'' propeller would have a 12-inch diameter and a 9-inch blade pitch.
