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Old 06-27-2015, 01:27 PM   #9 (permalink)
aerohead
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difference

Quote:
Originally Posted by ChazInMT View Post
So what is the difference between the bottom image and the one just up from it? Also, it seems to me like a bottom diffuser area has come into play that was not mentioned earlier. The test samples also seem to be missing a tow vehicle which I'm certain would have an affect on the system here. Sorry, but a 25° top drop angle flies in the face of everything I've come to understand about aerodynamics these past few years.

I'd love to know what is different between the last 2 drawings that makes a .05 difference in the Cd.
The bottom image is the only configuration which includes plan-taper of the boat tail sides.All the rest are just parallel.
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