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3 cubic feet
Simultaneous posts apparently. Gday Joe
3 cubic feet in a float the size you are looking at is very little really, given the length of the float you could get the required amount with a tall vertical block glued roughly down the middle. The interference for inspection is going to be absolutely minimal. Could you fix the foam block on some risers or suspend the block altogether to clear the lower skin?
I would not do away with the watertight compartments at all, but this could be a solution. Perhaps a very light ply box to contain the foam in each chamber and pour the foam insitu, then just carry on building the float as if it wasnt there....
chris
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