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Old 09-11-2012, 03:02 PM   #12
Blue Heron
Guru
 
City: Pensacola
Country: USA
Join Date: May 2012
Posts: 748
Manyboats,

You're welcome. My Prop is 22 inch / 17 * 3 bladed.

Sweet spot as far vibrations and harmonic balance for my motors appears to be about 1700-1900 ERPM.

I attempted to provide the GPH at RPM and the observed speed. This is helpful when planning trips and / or fuel consumption for range and fuel stop.

Of course this is with full Fuel (400 Gallons) and full Water (300 Gallons) and assuming the displacement is rather heavy. Bottom is clean and fresh and props were just scraped so there is no marine growth.
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