wrote in message
...
On Fri, 16 Apr 2010 21:01:09 -0700, "nom=de=plume"
wrote:

.. wouldn't a newer boat in the
size I mentioned from a reputable US manufacturer be powered properly?

This is what Froggy is saying "properly" depends on which side of the
compromise you want to come down on. You can have a fast power boat
with sails or a fast sailboat with a motor but both at the same time
is hard to do.


My understanding is that the engine on a cruising type boat would be able to
bring the boat to "hull" speed. You can't really go faster than that, so I
suppose the appropriate engine would be one that could do that (or nearly
so)? 1.34 x sq. rt of water line? So, assuming there's overhang on a 42'
boat, say the water line is 40' the max speed would be about 8.5. Of course,
if it were not pushing all the water, skimming, then you could go faster.

--
Nom=de=Plume