When I first got my (old style) Stealth, I made an attempt to weigh it using two bathroom scales. It was not an easy job and I'm not altogether certain that it was accurate as the scales didn't really settle due to there being a bit of a breeze about that was causing the boat to 'wobble' a bit.

What I thought was my best attempt gave a reading of 116Kg (56Kg + 60Kg), so my particular Stealth is a bit overweight <img src="http://www.catsailor.com/forums/images/graemlins/frown.gif" alt="" />. Being one of the first F16s built, I'm not surprised (or disappointed).