Outboard Questions • Sterndrive Questions

Q:

You suggest a 13" diameter x 14" pitch for my boat. Wouldn't a smaller diameter with more pitch do the same?
A: Pitch cannot be substituted for diameter. Diameter is directly related to horsepower, rpm, and speed, which indicate your requirements. If the operating conditions call for a 13" diameter, a 12" cannot be substituted without adversely affecting performance by decreasing efficiency.

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