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Old 06-17-2007, 06:47 PM   #31
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While we're on this subject, I've been looking at what's being done with semi trailers--that may be related to driving an xB. It seems that FE is improved when the vertical side/corners are rounded, often with attached fairings. This has led me to wonder about the old station wagon deflectors that diverted air downward to keep the rear window clear. Would a similar deflector mounted vertically at the rear corners of the xB would help fill in behind. Sounds too ugly to contemplate. Interesting idea, though.
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Old 06-18-2007, 05:48 PM   #32
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Quote:
Originally Posted by Graeme View Post
It seems that FE is improved when the vertical side/corners are rounded, often with attached fairings.
IMO a flat back (such as an 18-wheeler or Scion) is the worst scenario drag-wise.

Anything you can do to round the rear end is going to help aerodynamics at high speeds.
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