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Old 05-30-2009, 01:18 PM   #7 (permalink)
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boat tail

If the boat tail is enclosed and air tight,it will be at atmospheric pressure inside,and will have to contend with lower pressures "outside" which can cause it to burst if not reinforced against this pressure load.Make sure the skeleton is robust and that the center-to-center span is close enough together in areas where the bias of the coroplast offers little strength.
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