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Old 10-12-2019, 01:55 AM   #12 (permalink)
freebeard
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Quote:
Originally Posted by OP
I am looking at doing something in the 2 to 4 foot range for length.
Let go of the Template. It has a very narrow range of application, and is not fit for your purpose.

In 2-4ft, pace Mair, l/d (~3/6) give a 50% reduction in Cd. Of this one component.

The top and sides are straightforward, with a curve, slant or box step; the bottom needs special consideration due to the wake from the rear wheelwells.

If that's your vehicle here's a drawing I did for someone else. Hersbird proved out the pillars on the front corners.

...the theory (from others on the forum):
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Last edited by freebeard; 10-12-2019 at 02:05 AM..
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