Just a very general statement about hull speed; it takes twice the energy to motor at 6 knots vs. 5 knots on a ~33 foot LOA (26.4 LWL) displacement sailboat. So, don't think about going hull speed (1.34 X square root of LWL in feet). Think instead about a sweet spot of around 1 X square root of LWL. This puts my boat's ideal speed under power at around 5.1 knots instead of 6.0. It's just a general guideline. I could go even further at 4 knots. What's the hurry?
Thanks to James Lambden for this concept.
Cheers,
--Bob M
Ox C&C 33-1
Jax, FL
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Posted by: moriartybob@yahoo.com
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