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Old 05-05-2009
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I have some concern about the adaquacy of plywood for this application. Remember, your carrying this in case your original rudder fails, so presumably there are some significant loads being applied to the rudder. Half the grain in your plywood rudder will run along the cord and contribute very little to the stiffness and strength. I think your going to have to strengthen the plywood with some form of reinforcement or use a solid hardwood.
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