I know ...why not design it so your hull extensions are OUT of the water
until the paddler tips 10 degrees or so?

Brian


"William R. Watt" wrote in message
...
steveJ ) writes:
Because the enlarged ends are too low in the water in your design, the
boat would be slowed because the water would have to travel around them.
First out, then in, then out, then in. This would cause turbulance which
will slow the boat.

another way of lookign at this is in a "normal" boat the paddler has to
work to push the water aside at the bow and again to overcome the suction
as the water comes togehter again at the stern. In a wasp-waisted
waterline the water is pushed aside twice and the suction overcome twice
so its extra work.

again, the paddler has to work to overcome the friction between the hull
and the water. On a wasp-waisted boat there would be more surface area in
contact with the water, hence more surface friction, and the paddler has
to work harder to move the boat through the water.

there are wierd boats that are harder to move though the water but they
satisfy some other imporant requirement. a white water kayak comes to
mind. these boats depend on water current to move them along. they
sacrifice speed and ease of paddling for maoeuverability. such boats are
special purpose. if you have a special situation where the wasp-waisted
boat would be better than a normal boat which paddles easier go for it.

I wasn't actually able to look at the boat because the computer at the
public
library was denied access to the Developement web page for some reason.

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