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aerohead · 06-06-2009, 05:18 PM

Hello all.There has been some interest in streamlining vans,and especially some interest in van boat tails.Al Glidewell has scanned the photos of my college project with the VW van and we're going to see if we can get them posted here.The work was done 1979/1980 for a senior project at Texas Tech.A 1970 VW Transporter was modified with 0.32-inch thick aluminum full bellypan,cardboard and duct tape rear wheel skirts,and aluminum-over-wood skeleton 18-inch boat tail extension with increasing curvature up to an exit angle of 20-degrees,as measured from the vehicles longitudinal centerline.---------------- The "kit" provided an 26.8% mpg improvement in mpg.Cd was estimated at 0.35-o.32,from an original Cd0.455.Mpg was as high as 35.5 mpg at a steady 55-mph.

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aerohead Master EcoModder Join Date: Jan 2008 Location: Sanger,Texas,U.S.A. Posts: 16,265 Thanks: 24,389 Thanked 7,360 Times in 4,760 Posts	Phil Knox's aero-modded 1970 VW van Hello all.There has been some interest in streamlining vans,and especially some interest in van boat tails.Al Glidewell has scanned the photos of my college project with the VW van and we're going to see if we can get them posted here.The work was done 1979/1980 for a senior project at Texas Tech.A 1970 VW Transporter was modified with 0.32-inch thick aluminum full bellypan,cardboard and duct tape rear wheel skirts,and aluminum-over-wood skeleton 18-inch boat tail extension with increasing curvature up to an exit angle of 20-degrees,as measured from the vehicles longitudinal centerline.---------------- The "kit" provided an 26.8% mpg improvement in mpg.Cd was estimated at 0.35-o.32,from an original Cd0.455.Mpg was as high as 35.5 mpg at a steady 55-mph. Attached Thumbnails