BNSF Consist – BNSF 997, BNSF 7359 and BNSF 8531

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A trio of power sits idle in the Pueblo rail yard: BNSF 997 (GE DASH 9-44CW), BNSF 7359 (GE ES44DC), and BNSF 8531 (EMD SD70ACe). I don’t often see the paint scheme that BNSF 997 wears here.

Finally, a shot from the bridge looking down on the other side of the consist.

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4 thoughts on “BNSF Consist – BNSF 997, BNSF 7359 and BNSF 8531

  1. SnapperTrx

    I always wondered exactly how this works. Do they run one of these guys in reverse? And what really is the added benefit? Is it simply pulling power? I’m afraid my knowledge of trains is extremely lacking. If you know, care to share the info?

    Reply
    1. matt Post author

      I don’t know everything about it, honestly. The diesel engine drives an alternator (in AC models, or a generator in DC models). There are inverter motors on the trucks, so I presume those can drive whichever direction needed. I know the whole consist can be controlled through the lead locomotive.

      There’s a really long and detailed explanation I’ve referenced a few times for the reasons behind how many locomotives are put on a train. I don’t know that I fully understand it, but it talks about how to calculate how much tractive effort you need to pull a train. That directly translates into how many engines on a train, too. Or perhaps it’s the main thing that determines how many. Once I’m back in town, I can send it to you if you want…

      Reply
      1. SnapperTrx

        Yeah, that would be cool. Knowledge is power, man. Even knowledge about train drives! It makes for interesting conversation.

        Reply
        1. matt Post author

          Shoot me a comment with your email address, and I’ll send this over to you. I moderate everything, so your address won’t show up on the site; and I’ll even delete the comment afterward.

          Reply

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