Quote:
Originally Posted by Christ
"And we saw from the tufts that it had attached flow to the end."
Most probably because of the belly tray you have installed, do you agree?
IOW, for the average Metro owner, the angle that maintains attached flow will probably be much less, perhaps half of that, due to extremely turbulent flow to the fore end of the transition to smooth surface
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Even without the belly pan, I had attached flow - very turbulent, but no recirculation - in the middle of the tail right to the end. But it definitely got better with the undertray. Ultimately, yes it makes sense that a smooth undertray would permit a steeper angle before flow separation than without one.
Quote:
Originally Posted by aerohead
if you were starting around Cd 0.30 before the tail,then the 15% mpg improvement would have you in Cd 0.21 territory
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.21? Woohoo!
Quote:
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Thanks for doing all that,the ... video
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Oh, right, the video. I still need to put something together to post on YouTube. Weekend project.
Quote:
Originally Posted by RobertSmalls
If your underbelly were as smooth as, say, 3-wheeler's, might a 10° angle be possible?
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Only one way to find out. (Involves sacrificing some of the raw materials from your knitting kit though.)