Identify this car???

I have seen cars going north and south on the BNSF between Tacoma,WA and Seattle which I do not know what they are used for or carry. Unfortunately I do not have a picture nor would I know how to post it if I did. The reporting marks are RGMX I believe. They are black and look like overgrown or pregnant coil cars, almost the size of a small, covered hopper, but have no discharge chutes, perhaps 35-40 feet long. Looking end-on the profile would be semi-circular or semi-elliptical. Any clues? My roster of reporting marks did not list RGMX.

RGMX is RailCar Limited, a leasing firm based out of Montreal. I can find lots of locomotive pictures, but only a few of their lease cars. None match your description.

Railcar Ltd. (now part of The Andersons) operated reporting marks RMGX.

RGMX, though, I can’t find in the two most recent Equipment Registers out there. I hope you can find one of these cars again, and supply us with the reporting mark and number. I might be able to tell you something about these cars then.

Your description sounds like the coil steel cars built by the National Steel Car Corporation (they have very prominent fishbelly bodies that look pregnant, and would have rounded covers 42 feet in length). But I’m not familiar with that reporting mark applied to any cars like these (I’ve seen some black ones lettered TR).

Carl

[8D]what color was it sounds like the shuttle cars kcs used to carry plane and shuttle cockpits in the were like yellow and had a door on the end

The cars are black and usually only 6 or 8 in a train-manifest type. I suppose they could be carrying Boeing plane parts, but I have never seen any of these cars at the Boeing plants where I have been many times.

I think I’ve seen a couple of these at the Gunderson car repair shop in Springfield, OR. If these are the ones I’m thinking of they are an airslide type covered hopper. Possibly for carbon black…

Maybe the reporting marks are RMCX. I could see Reynolds Aluminum having coil cars. Does the equipment register show any?

In the new products listing in the Feb 05 issue of Mainline Modeler there are pictures of Railway Classics HO scale models of Whale Belly Hoppers (GATX Pressure-Slide cement hoppers) that resemble the description.

sounds like a tanker almost[?]