18 feet long * 18square meters of sailarea = 18^2 = 18sq <img src="http://www.catsailor.com/forums/images/graemlins/smile.gif" alt="" />
Cool class if a bit heavy and should really be solo rightable (is it?).
I like Matts suggestion, but are there enough builders/tinkerers around who wants to be competitive?
Before I bought an F16 I did a fair bit of design and thinking about a new take on an 18sq.
Mainsail was smaller, (around 15sq), but with a Kite; approx 12 feet wide; 18 feet long and aiming for between 85 and 95kg.
But I chickened out!
Maybe one day!