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Old 03-14-2008, 08:43 AM   #5 (permalink)
tasdrouille
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Quote:
Originally Posted by LostCause View Post
The low cD is probably due to windtunnel data. Surprisingly minor changes to a non-aerodynamic shape can create significant differences in drag. These minor changes are pretty much impossible to find outside of the wind tunnel.

Food for thought: the lowest cD of a wheeled vehicle in ground effect - ~0.15

- LostCause
I'd like to add that .15 is assuming a completely smooth body.
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