Quote:
Originally Posted by SteveP
MetroMPG,
Here's an "authoritative" reference (Road Vehicle Aerodynamics, mentioned in my Intro), page 51:
He then shows a diagram that indicates that for a rough underbelly, the Cd increases with increasing ground clearance, while for a smooth underbelly, Cd decreases with increasing ground clearance.
--Steve
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very good!
I have think this hone, but I do not have read, until to hour
