Quote:
Originally Posted by Piwoslaw
Thanks, Aerohead. I've never had Hucho's work in my hands, so I wasn't aware that he covered this.
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I've not yet dug in to find the paper,but I'm thinking it is circa mid-1980s.
It's kind of a rehash of R.G.S.White's work at MIRA in England,published in 1969.( A Method of Estimating Automobile Drag Coeffiients,SAE Paper# 69018 )
White took a wind tunnel model and ran it through 44 physical body change iterations to qualify the lowest drag capability for 9 major body categories.
If you combined the best of each category,the 'recipe' could yield a car body with Cd as low as 0.24.Not bad for 1969.I'm pretty certain that HONDA used White's work to help create their 178 mpg P-100 in 1972.
There is an image of his table in the Phil Knox's Aerodynamic Photos Album somewhere.