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post #16 of Old 02-11-2003
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Balsa cored hulls - old boats

Teacher''s pet III is an entirely differently built boat than the typical balsa cored boat.
TP III was a strip plank built of balsa wood planks and then covered with glass inside and out. The cored boats have end grain balsa held together with a scrim. Since balsa is a closed grain wood, the polyester resin did not adhere well to the core--and delamination has been a problem. We hope to shortly have some ultrasonic testing gear availalbe at a reasonable cost to test these hulls. If anyone has a section taken from a balsa core boat, I would appreciate an E mail to thataway4@cox.net.
Bob Austin
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