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Old 10-01-2007, 03:06 PM   #1
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Kamm Back Semi ?

snapped these today
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Old 10-01-2007, 03:14 PM   #2
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Also really low on the sides, interesting stuff.
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Old 10-01-2007, 03:14 PM   #3
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lca13 -

Very cool. Makes me think I could attach a plastic tub to my car's rear.

From the trucker's website, Waggoners, it appears that there were cars inside that trailer :

http://www.waggonerstrucking.com/Com...Info/fs06.html
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Enclosed Transport Equipment
The Waggoners Trucking operates the largest and most modern enclosed automobile transportation fleet in the nation. The majority of our enclosed equipment consists of 8-car Nuvan units, as well as other Waggoner-designed, specialized equipment.
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Old 10-01-2007, 06:34 PM   #4
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Another semi aero mod

I've seen these on Con-Way Freight trailers in plastic.



The trick is that they have to be adjustable for the trailer wheel's sliding position (fore-aft) -- if equipped. Over that many miles, is has to help...

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Old 10-01-2007, 06:44 PM   #5
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Cool boat-tail. And when you get where you're going, you've brought your hot-tub with you!
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Old 10-01-2007, 06:53 PM   #6
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Cool boat-tail. And when you get where you're going, you've brought your hot-tub with you!
Hardy-har. Lemme guess, complete with flashing red LED "mood lighting"
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Old 10-01-2007, 06:54 PM   #7
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I've seen that on trucks carrying expensive cars

Unfortunately, they typically have flexible sidewalls... Not exactly good for aero :/
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Old 10-02-2007, 01:17 PM   #8
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Could ya elaborate on that? Is flexy stuff worse than nothing in terms of aero, or just worse than a rigid boattail?
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Old 10-02-2007, 01:32 PM   #9
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Could ya elaborate on that? Is flexy stuff worse than nothing in terms of aero, or just worse than a rigid boattail?
It's not worse than nothing - nothing will basically inflate apparent cross section area. It is worse than a rigid side as seen on pretty much all other enclosed semi truck trailers.
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Old 10-02-2007, 01:45 PM   #10
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I've seen that on trucks carrying expensive cars

Unfortunately, they typically have flexible sidewalls... Not exactly good for aero :/
I believe that the sidewalls are there to protect pedestrians, cyclists and small cars from getting run over by the rear wheels. That's why they are flexible. You see these often on European trucks.
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