Boat Propeller

Author: boater, 08 31st, 2010

Have you ever wondered what the numbers on boat propellers are well the first number is the diameter which if the diameter of the circle made by the propeller the second number is the pitch, if the pitch is twenty one that means the boat will travel twenty one inches per revolution.  Most propellers are made from aluminum or stainless steel, their is a price difference but performance does not vary that much.



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