View Single Post
Old 07-27-2012, 10:29 AM   #25 (permalink)
JackMcCornack
EcoModding Apprentice
 
JackMcCornack's Avatar
 
Join Date: Mar 2008
Location: Southern Oregon
Posts: 179
Thanks: 5
Thanked 39 Times in 23 Posts
One of the easiest ways to improve the Cd of a vehicle is to make it bigger, which natch increases total drag...and I think that's why the manufacturers of big sedans big SUVs etc tout their Cd rather than their CdA. As I recall, there's an example in Hucho showing how bulging a flat roof up reduces the Cd, but no more than the frontal area increases, leaving CdA unchanged.
__________________
Modding MAX, a Kubota-powered classic sports car
http://www.kineticvehicles.com
  Reply With Quote