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Old 08-17-2023, 04:13 AM   #21 (permalink)
freebeard
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According to #7 you have attached flow all down the back window. Instead of a step and flat top, why not a concave curve and eleiminate the step.

There is a race car (I always forget) that used a concave spoon-shaped afterbody to get downforce without a wing.

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