Quote:
Originally Posted by UltArc
The math I am not sure about, but it seems to be a quadratic equation rather than linear.
I do not THINK it is as easy to compute as that. I am not an expert, nor do I know too much at all about the subject, I just can't believe it to be so easy.
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General Motors came up with the Cd vs mpg relationship and published in an SAE Paper.
As of 1990,the GM Aero Lab said the relationship was still valid.
It does assume a constant BSFC and is not intended to supersede wind tunnel testing or official coastdowns,but it can be used with high confidence.