Without the Propeller’s thrust, nothing happens. In determining boat performance, Propellers are second in performance only to the power available from the engine itself. Your boat propeller, effects every phase of performance, handling, riding, comfort, speed, acceleration, engine life, RPM’s, fuel economy and safety. Once a ding or a chip appears on a propeller, small or big, the damage is likely greater than what appears as the obvious and can impact some or all of the above performance metrics.