BINGO!!!!!!!!!!!
Now just think what is possible by updating the non-structural hull concept using maybe a carbon fibre spaceframe, developing the foils, maybe low pressure thermoplastic hulls to modify the hull shape.
It's just a little bit of thinking 'out of the box' many people seem stuck in.
http://www.msogphotosite.com/MSOG/pdfpage/catapult.pdfCheshirecatman
I had often thought that a neat way to do this is to make a thin wall thermoplastic hull and then pressurise it. Think about a plastic coke bottle, take the lid off and see how un-stiff it is. Then pop the lid back on and shake it up, it becomes extremely stiff.
Better still you could fill it with beer, then you would have a really desirable boat !
I wish I had the time and money to prototype one.
Gareth