Posted: Tue Oct 31, 2006 2:04 pm Post subject: Most boat manufacturers use a simple performance test
Why worry about propeller size?
While your prop pushes your boat, it also acts as a single speed transmission. Your boat is not like a car with many speeds" or "gears" that can be used while underway. The prop size (diameter and pitch) determines the "gear" you're in all the time- whether pulling up a skier, pleasure cruising, or going for all-out speed. Most boat manufacturers use a simple performance test that determines the correct prop size for almost all applications. It is explained below. We have also included a few definitions and hints.
If you have further questions, call us. We're open 8:30-5:00 central time. Good luck!
There is no "master chart" that shows what prop your boat needs.
You need to know three things:
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