Thread: Cd 0.38
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Old 11-02-2015, 12:20 AM   #14 (permalink)
freebeard
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Back when I had the 1961 VW panel van, I thought about two Porsche duck tails, vertical on the sides, to create what I would verbalize today as a virtual plan taper.

More for directional stability than downforce, like a shuttlecock.
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