10-20-2019, 04:22 PM
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The Alpha Kid
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Join Date: Mar 2012
Location: central PA
Posts: 421
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I spent several evenings trying to get the fin's diamond shape just right. They seemed flimsy when done, so I reinforced them with kraft paper and thinned Titebond Blue. I used this technique on the balsa fins of my Super Big Bertha and it produced a very strong, lightweight fin that has held up well.
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