Quote:
Originally Posted by RACERSNUT
While I see a great deal of discussions going on with cars/trucks......aside from the big rig trucks......has anyone done any work trying to get mileage improvements with say a F-250 truck and an enclosed trailer that would haul a race car? For the trailer, I've got in mind your standard 8 ft. tall, 24 ft long everyday variety.
I've search high and low for low-profile trailers,.......and the options seem to be "we'll build whatever you want" or the trailers sold for UBER prices.
Any thoughts or information?
|
Do a Search for 'FAIRING WELL',by Christian Gelzer.It's online.
NASA did some research at Edwards Air Force Base and published their findings.
If you're going for really low drag:
*The trailer's upper horizontal edges should be radiused (HAULMARK and CM already do this)
*The trailer's upper contour should be like Don Bur's in Europe
http://www.donbur.co.uk/eng/images/1...-%289rt%29.jpg
*The trailer's rear should be boat-tailed
*Clean up the truck all you can
*Build a bedcover which creates a fairing to direct air onto the trailer (height and width)
*Close the gap between the trailer face and bedcover
*Full belly pan,truck and trailer
*Full-depth side skirts
*Full wheel skirts
*Full wheel covers
*Full wheel fairings
With all these mods you have a shot at a rig with Cd 0.19-0.13,based upon the frontal area of the trailer.