View tunnel hull boat plans for the seabright 21, a shallow draft, atkins style tunnel boat. see our plywood version of this tunnel boat design at bateau!. Visit http://www.boatplansideas.com to find useful information on boat plans if you want to start to build a boat. find articles on wooden boat, classic.  active thunder boats serious hand crafted hi-performance 32′ active cat for race or pleaseure. also an interesting 10′ mini cat based on the lines of the larger 32′..