View Single Post
Old 10-20-2010, 02:07 PM   #32 (permalink)
dpero
EcoModding Lurker
 
Join Date: Mar 2009
Location: InAHouse
Posts: 25

Jimmy - '89 GMC S15 Jimmy 2wd
Last 3: 22.56 mpg (US)
Thanks: 2
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by aerohead View Post
Your design is something like what Walter Korff of Lockheed had advocated for an 18-wheeler trailer van in 1963.
He and Kamm and Fachsenfeld would have liked the rear as it embodies the 50 % frontal area cross-section and reduced wake.
I would think about some radius on all your forward and upper edges.
A foil on the tow vehicle and movable gap-fillers between 'vehicles' might allow you extra interior space in the trailer,using the tow vehicle for all the 'penetration' with the trailer in full draft behind.Hucho says there is as much as 10 % extra fuel economy right there.
If you were near a university with a modest wind tunnel you could throw some money at the grad students and let them do a scale-model study.
I have a 22-foot sailboat which will be reversed and inverted to create the body for a 5th-wheel RV trailer with full boat tail.I believe it would pull like magic.
I think yours might too!

Do you have a link to a photo of his trailer? I did some searching but couldn't find anything.

Some radiusing is in the future. Seems like the right thing to do.

I think I'm going to play with a deflector/foil on the Visa. Hopefully some gains for a simple mod.
  Reply With Quote