The Kato RSC-2, unlike the prototype, has all six axles geared. The prototype was, of course, A-1-A, but the model is C-C. What is even more laughable is that the Atlas RSD-4 is geared B-1/1-B. The prototype, was, of course, geared C-C. The Kato has pretty good pulling power. The Atlas is anemic, although in pairs, it is good as a pair. I had a bunch of Kato RSC-2s, at one point. I liked them. I still have two left. I also like the Kato RS-2 and Atlas RS-3. I would stay away from the very old issue RSC-2 that Atlas sold that was made by Mehano. It has only one truck powered. I had one that could not even get out of its own way. The old Atlas/Katos are quite finicky and will show you the dead spots. I run an older issue B-mann or MP to show up track flaws. If your trackwork has a flaw, an old B-mann or MP will find it quickly. You can get them at shows from a realistic vendor for about ten dollars.