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krj
 
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JAXAshby wrote:
or the invalidity of the concept of "hull speed",


It is a perfectly useful prediction of an approximation of the most
economical cruising speed in some cases.



nonsence. cut your speed to 80% and you will save 35% on your fuel. cut by
50% and save by about 75%.

fuel required goes up with drag, which goes up at the square of boat speed.

Cut it to zero and save 100%
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