How to tie/bolt/ the beams together, or have them slide in boxes. Frankly, bolting the beams together is tempting, just to I don’t hear them clunking around. I also wonder about the floatation of the outside hulls once the middle hull is gone. Have you ever had your L7 up on one hull? If so, how much did it depress? I’d call up Mike and ask, but this is more a gedankenexperiment at this point. On the other hand, he was the one who mentioned it….. <_<Amati, that's a pretty interesting idea. There's a slightly busted up L7 for sale cheap right now. Somebody with a little skill could make a nice cat outta it or just fix it and have a great tri. I've sailed a few times on a Woods cat that uses the same mast and sails as the L7. The hulls are much heavier than the L7 amas but the boat sails very well. I think a 12ish foot beam would be fine for your proposed cat.