Quote:
Originally Posted by MetroMPG
Daox, even without a smooth undertray, Hucho shows your nose diagram (post #5) as the best of 5 variants. Fig 4.31 in 4th edition.
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unfortunately , I do not have this book, but that one you report, make to think me.
One of drag sources, it is, the consequence of acceleration of the air flow under the car.
The maximun acceleration airflow, is created from underbody roughness.
it is possible, that the text must be interpreted, and to know, which level of roughness Hucho referred.
sorry, I do not have all pics with me
