Quote:
Originally Posted by Angel And The Wolf
I know that the optimum shape is dependent upon the operating speed through the air. For what speed is this template designed? 55 MPH, or the new 75 MPH?
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A full-sized car will have a full-turbulent boundary layer,constant Cd,from 20-mph,up to around 250-mph,as mentioned.Above that,compressibility effects come into play.