View Single Post
Old 07-08-2020, 02:06 PM   #71 (permalink)
aerohead
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 15,861
Thanks: 23,922
Thanked 7,207 Times in 4,640 Posts
Rocketail Wing testing

The EPA granted a conditional SmartWay designation to Rocketail based upon 1/8th-scale wind tunnel testing submitted by Rocketail, and on-road fuel economy testing by Messilla Valley Transportation in New Mexico.
The EPA did not conduct nor solicit any 3rd-party, independent evaluations to corroborate results and conclusions.
Messilla claims an improvement from, 9.20971 mpg, to 9.5238 mpg, 3.58-gallons saved per 1,000 miles, a 3.36% improvement.
According to the NHTSA, a 10% drag reduction will net a 4.8% improvement in mpg for a Class-8 tractor trailer.
A 3.36% mpg improvement implies a 7% drag reduction via forward lift and wake modification according to an 'all-star team of industry professionals, engineers, and testing partners.'

__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote