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Old 07-19-2011, 09:06 PM   #35 (permalink)
orbywan
EcoModding Apprentice
 
Join Date: Jul 2010
Location: Tucson, AZ
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Quote:
Originally Posted by aerohead View Post
Moller improved the Volkswagen 'brick' from Cd 0.76,to Cd 0.42 with front radii.
Walter Lay,in 1933,built a full-size brick on a GM truck chassis.Leading edge radii cut drag from Cd 0.88,to Cd 0.42.
In 1963,GM investigated 18-wheeler drag.A fully radiused front was just a smidgeon ( sp?) better than an 18-inch radius.
In 1936,Fachsenfeld modified an Omnibus bus,with an inflatable boat tail which brought the drag own to Cd 0.158.His tail is the best I've seen so far.It's in Hucho's book.
The NUNA-3 team boat -tailed 'everything' on the car and achieved Cd 0.077.
The back really is where the pot-of-gold it hiding.
OK, I’ll play with the air dam when the belly pan is finished, thanks for the information Phil, and everyone else for weighing in on this, the comments and advice are very appreciated. I know enough to be dangerous at this point. I just spent the last few days before and after work building the front part of the A/C fairing, photos are below.

It was probably more trouble than it was worth but I wanted to add a rear looking roof cam to my system and this way I was able to incorporate that into the fairing. It’s kind of long but I still have room for solar panels. Probably would have been easier to just take it off and relocate it but it’s done for now.
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