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I like that he uses the VW Beetle as a benchmark. It's relevant to my interest.
1.75/2.5=0.7. Assuming a 12' length, increasing the Beetle's fineness ratio to 2.5 would require a 5.14ft boattail. What is the included angle at the tip of the optimal body? I used 45°, as close enough to 2*22° in my experiment with redwood lath, and got a boattail length of 3ft.
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