Tim Diebert Posted May 14, 2005 Posted May 14, 2005 I don't have the patience for searching the site for this info....I know it was covered at some point. Hell, it took me a week just to remember to remember.... What is the buoyancy factor in a given chunk of rigid foam....like the big sheets of 2" stuff at the lumberyard. You know...per square foot... Beaker, you should have these numbers ready and waiting..... Quote
Tim Diebert Posted May 15, 2005 Author Posted May 15, 2005 Weigh a cubic foot of desired floatation material and subtract that weight from the weight of the water you plan on floating in. That gives you the floatation factor of whatever material chosen. So that would explain why when using your formula, brass ends up being a negative (or non) floatation material. Nice. So then 2 inch foam will provide 5.33 cubic feet of floatation material. So 330 lbs of floatation less the weight of the foam in fresh water for 4x8 sheet of 2 inch, and 341 lbs in salt. Right? Figured that out all by myself. I also figured out if I fill the entire cabin with foam blocks it might float if swamped...considering all the gear I carry around, the beer, the giant outboard and that big box of lead. Maybe I should use my sailing mentors method......don't use floatation...don't screw up...if you do, you loose the boat. Keeps ya on yer toes that way. Quote
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