Back in the day a couple of H21 guys went 11 feet wide, which is just a tramp, beams and standing rigging and turned out to be a complete bust but even at that it was a fair amount of cash to get there. The boat simply wasn't designed to be 11 feet wide and it was $$ wasted. They both went back to the 9'6" beam (stock) and never spoke of it again.
David Ingram
F18 USA 242
http://www.solarwind.solar"Do or do not. There is no try." - Yoda
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