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Old 12-16-2008, 02:31 PM   #2 (permalink)
aerohead
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speed

Quote:
Originally Posted by Geebee View Post
Kamm back speed at which it starts to work?
I used to have a book that gave a guide to the speed at which the airflow held its shape, but I have misplaced it.
Any references online etc.

Cheers
The coefficient of aerodynamic drag for your car is fixed,and remains constant,once up to about 20-mph ( 33 km/h ),and the experts now say that aero drag is significant by 35-mph ( 56 km/h ).
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