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Old 07-18-2015, 04:08 PM   #1 (permalink)
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Turning NASA's 'Shoebox' into a Slipper

I picked up where NASA left off with their 'Shoebox' van streamlining and took it to completion.
Starting from their fully-boat-tailed Cd 0.238 van I:
*added body side camber (Buchheim,Deutenbach,and L'u'ckoff)
*added upper edge radii (Hucho)
*added roof camber (Buchheim,Leie,and L'u'ckoff)
*added wheel skirts (Heltemes,Tremulis,Cogotti,Garrone,and Masoero)
*added MOON-esque wheel covers (Shinella,Tsukada,Sakagami,Arai,and Takahara)
*and full wheel fairings (Tamai),allowing 50% of Tamai's factor allowing for wider tires (SWAG).


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We'd have to add back in some features drag associated with a working cooling system,wipers,and mirrors,but that's not a lot of fruit to put back on the tree considering the GM Precept concept car.
PS these are just estimates but should fall close to the tree.

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Last edited by aerohead; 07-18-2015 at 04:11 PM.. Reason: add PS
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Old 07-18-2015, 06:02 PM   #2 (permalink)
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Now if somebody would make an RV like that with a I4 Cummins for power. Bed in the tail like a V-berth in the front of a boat. Make the interior 6 1/2' tall in the center and make it 7' wide. What would the frontal area be about for that?
I bet it could get 30 mpg

or maybe better yet this motor
http://cumminshub.com/2.8l-cummins.html

Last edited by Hersbird; 07-18-2015 at 06:08 PM..
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Old 07-18-2015, 06:23 PM   #3 (permalink)
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Angle back the windshield a bit too as some newer buses are doing.
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Old 07-19-2015, 01:54 PM   #4 (permalink)
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You've effectively re-contoured the entire body. Why not start with a
Bowlus Road Chief? They are being cloned today.



The 'tow vehicle' could be a Tesla drive train/Segway hybrid that would drive, steer and brake—with a trailer hitch. It could have a head like that BB-8 droid in Star Wars Episode Seven.
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Old 07-20-2015, 04:44 PM   #5 (permalink)
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frontal area

Quote:
Originally Posted by Hersbird View Post
Now if somebody would make an RV like that with a I4 Cummins for power. Bed in the tail like a V-berth in the front of a boat. Make the interior 6 1/2' tall in the center and make it 7' wide. What would the frontal area be about for that?
I bet it could get 30 mpg

or maybe better yet this motor
2.8L Cummins I-4 Turbodiesel Specs
Frontal area would be about 38.22 sq-ft for the cabin,plus axle and tires,'n anything else.
Seems like a modern TDI engine would have no trouble with 30-mpg,since Jettas are pulling Sport Airstreams at 32-mpg.

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