Why do boat propellers cavitate? The faster a boat propeller goes, the more bubbles are produced, which is the cause of cavitation. Slowing down or reducing surface pressure will reduce cavitation and therefore save your propeller from unnecessary abuse.

What causes a boat motor to Cavitate?

Cavitation occurs when there is an extreme reduction in pressure on the back side of the propeller blades. ... The water vapor bubbles migrate toward the center of the blade, where the pressure is higher, and the boiling stops. The vapor bubbles implode against the blade's surface.

What causes a prop to Cavitate?

Face propeller cavitation occurs on the driving face of the propeller and is often due to an incorrect pitch distribution along the length of the blade resulting in the tip pitch being too small and the blade sections developing a negative angle of attack. Its results are frequently found on controllable pitch units.