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Old 06-09-2011, 10:01 AM   #29
skipperdude
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City: Whittier AK
Vessel Name: Apache II
Vessel Model: 1974 Donald Jones
Join Date: Oct 2007
Posts: 3,147
RE: Calculating hull speed.

With my cat 3208. 210.hp. and a full displacement hull.

*I have a 24" rh 18 pitch prop.

How would I calculate the right prop to give me the proper load on the engine at hull a speed of 7.46 knt p.h. as calculated at the sq rt of 31 X 1.34.

I would like to run at about 75% of WOT. for optimum performance on the 3208

SD
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