On Mon, 23 Nov 2009 06:59:31 -0600, Vic Smith
wrote:

The tunnel hull seems to offer some promise. Pressurize the water
feeding the prop using a tunnel design. Or maybe reduce the pressure
and increase the velocity with the tunnel design.

This isn't as innovative as you might think - a lot of small boat
manufacturers have been building this type of hull design for quite a
while now. There's a manufacturer called Shoalwater (don't know if
they are in business stiil or not) that built bay boats and other
shallow water flats boats with this type of design.