When all is said and done, it is the propeller that turns engine horsepower into speed. Despite this critical point, many myths exist in the world of propellers sometimes creating an aura of mysterious black magic. To the contrary, propeller selection and overall performance is really black and white. A boat can only go so fast based on its shape, horsepower and ambient conditions. It is all about physics. So, no matter what anyone promises you, a new propeller will not turn your 15-knot cruiser into a 35-knot power racer unless it is on a trailer being towed down the interstate.

The photo of this Cruisers 300 demonstrates a perfectly trimmed ride. Note the level angle.