The Cementipede.
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I LIKE it ! It would look good on my RR 
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For a while the local (Roanoke, VA) Blue Cross/Blue Shield took to calling themselves Trigon. Somehow that name drew up an articulated three-piece gondola car in my mind. (I guess that would only happen to a train enthusiast!)
Regards, David Meashey
Is that a real car? Asking for a friend 
Yes. Dubious functionality, But then again; there’s a prototype for everything.
That’s a 3d printed O scale kit based on the model built by the famous John Armstrong.
Here is the original
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When you building one, Dan?
I guess if you want a real prototype, you can build the Super Hopper.
This cementipede thing has me thinking. I do like the funky odd ball trains 
This unusual setup could also be used with tankers. 
Would look nice behind Todd’s Schnabel, and maybe a Baldwin centipede loco or two. A train of wheels!
Need to make an intermediate car, too, so you can have any length you want. 11 cars? No problem…
Needs Talgo trucks with diaphragms then call it modern mainline on R1 curves !
In the late '70’s and early 80’s there was a unit oil train called Tank Train with all of the tanks piped together. I lived on the NS mainline at the time but I can’t recall if they were articulated.
EDIT: Found a write up on the Tank Train. Not articulated, just all connected for a single unload point…
Dan, is the idea to negotiate sharper curves?
Cliff I’d think maybe that tighter curves, but would lean heavily on less car weight means more product can be carried 
I agree: weight distribution over 3 trucks allows for some creativity in tank design.
This seems to explain a bit.
https://vremyaovk.uniwagon.com/en/news/first-articulated-tank-car-fleet-cis/
Those are slick Dan. Thanks for posting. Now the mind gears are churning. 
Possibly, But also reduced weight, smoother ride and less maintenance. I imagine the extra set of trucks is not necessary given the load gauge restrictions. (If the cars cannot be tall then they won’t be as heavy which can negate the need for more wheels).
UWC also builds articulated hoppers and flats.
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