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Old 03-13-2019, 03:24 PM   #802 (permalink)
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Originally Posted by COcyclist
I have been reading Julian Edgar’s book. He states that the counter-rotating vortices start at the A pillar. This view would seem to support that.
At least in the case of the VW Beetle, IMHO it's the C-pillar as that's the widest and tallest (max cross section).
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