Hull Speed, Semi-planing?

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druid

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Apr 22, 2009
837
Ontario 32 Pender Harbour
OK, this is a little off-topic cuz it's not a sailboat, but I know there are some serious Marine Architects here (KOFF!RogerKOFF!), and it has to do with hulls that COULD be sailed...

I'm looking at building a 16ft boat to put my 10hp diesel in, and came across Atkins' "Sixteen Two" http://www.boat-links.com/Atkinco/Utilities/SixteenToo.html
Now, it sure looks to me like a displacement hull, with that much rocker, but the blurb insists it goes "10 to 11 miles per hour" with a small engine. Does this make sense? I've posted this question twice on the Atkins' mailing-list, but apparently they don't like any post that seems to criticize an Atkins design ;)

Any thoughts? is 8-9 knots reasonable for this shape of hull?

druid
 
Jun 7, 2007
875
Pearson- 323- Mobile,Al
Weight might be a bigger factor in a small boat than LWL. My canoe definately displacement almost gets on a plane lightly loaded but ploughs when loaded. Hull speed is not a absolute law just an empirical relationship that holds pretty true for most hulls.
 
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