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Old 09-05-2015, 09:46 PM   #4 (permalink)
Shepherd777
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Quote:
Originally Posted by freebeard View Post
Help me out here. The green line is the cumulative Cd not counting but not ignoring the downstream effects?

The tractor's contribution is 0.095 because it is being drafted by the trailer?

The taper in the rear causes an 80-90 count increase in drag?

I suspect I'm missing something. Or just totally wrong.
I think that you are mostly correct freebeard. I am unsure on your second point regarding the tractor contribution. My aerodynamicist has not debriefed me yet on this chart, but that is supposed to happen tomorrow.
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