Quote:
Originally Posted by Cd
Jim - your work on it was a real inspiration.
I really appreciate all of the testing information you provided.
What would you estimate the cD was with the tail, based on the data you got from it ?
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Hi Cd,
I had to do some digging around for some really old data files. I thought that maybe I had some old coast downs using the GPS to check Cd of the addition of the tail. No dice.
But I did find an A-B test for gas mileage here...
https://ecomodder.com/forum/showthre...tml#post203744
From this you should be able to calculate the effective Cd of the tail.
I estimated that air drag and rolling resistance are equal around 45 mph. The A-B test was done at 56 mph.
Jim.