"I am Tosk" wrote in message
...
In article 7cf25d85-8cc3-4fdf-bb0e-b98d1839e364
@r1g2000yqj.googlegroups.com, says...

Something I noticed on this leg of my cruise is the radical diff tween
the wakes of mono and catamaran hulls for power boats. The monos have
huge wakes while the cats have very small wakes. This should give
better fuel economy. Does it?

Is it possible that the two hulls each have half of the wake of a
similar weight monohull? Effectively, it should do half the damage to
the shoreline, but pound for pound I don't think it should make a huge
difference in total drag assuming the hulls were all similar in design
and function...

Scotty

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On a planing hull, maybe not much difference in fuel burn, but still have to
move water. On a displacement hull, thedifference will be dramatic. Yoou
have pretty much effectively double the hull length, giving a higher hull
speed. This should add both performance and fuel economy.