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  • Topic: Union Pacific SD40N - Teaser

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    • November 20, 2017 8:56 PM EST
      • Marysville, Kansas
         
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      Union Pacific SD40N - Teaser

      Some teaser information on a upcoming project I have.   I am going to retire my Shay from the travel circuit and build a couple of locomotives for that purpose.   Since my RR is based on NG Logging, building travel locos gave me the chance to build a couple of SG Diesels.  This project was intended to be a Winter 2017/2018 build, but watching Shane Stewart's stuff and made me want to move it forward a bit.  This project is still a 2nd class project as my first focus after the holidays and into the Spring / Summer is to get the mainline of my RR built.

       

      Where and When I grew up there were 2 things when it came to railroads, Union Pacific and SD40-2s.   I was happy to see the UP had started a rebuild program to give these great locos new life.  Now designated SD40N, these will be the subject of my build.  About a year ago I had a chance to pick up a couple of good used USA Trains SD40-2s for a great price.  I plan to tear them down and rebuild them to include battery / rc power with sound.  I am also going to do something I have wanted to do, and make these locomotives as accurate as I can.  In this large scale, that will be easier to do, and the results will be far more visible.

       

      I have picked 2 prototype locomotives for this build, each for a specific reason.

       

      The first will be Union Pacific #1971.  I chose this loco because 1971 is the year my wife and I were born.   It also has a Winged Herald on the nose as well as a PTC antenna array.

       

       

      The second will be Union Pacific #1588. I chose this locomotive primarily because it was one of the "Fast Forty" locomotives rebuilt with higher speed gearing to run with the DD40AX locos and in piggy back service. This loco features a simple shield on the nose vs. the winged shield on 1971. This loco also includes a ratchet style brake handle vs. the wheel on #1971

       

       

      I will get into some more of the specifics on each locomotive, as well as the modifications to them in future posts.

       

      Chris

       

       

    • November 20, 2017 9:24 PM EST
      • Sherwood Park, Alberta
         
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      Awesome. Looking forward to it.

       

      Shane

       

    • November 20, 2017 9:54 PM EST
      • Port Orchard, Washington
         
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      Following Chris. I guess its time to start cranking out a detail wishlist...

    • November 20, 2017 10:21 PM EST
      • Marysville, Kansas
         
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      Well Craig I have been working on the underside right now.   I got the actual dimensions for the real EMD fuel tank and modeled it up.  I'm going to 3D print a correct shape one since the USA Trains one isn't even close.  They get a little expensive, because I am going to make them the same thickness as the original so it is sturdy enough I can hold the loco by it.   I have fuel tank mounts and drain bar ready also.  Right now I'm working on the waste tanks that were added.  The filler and gauge arrangement are different between the two prototypes, so that will make each one interesting.

       

      Chris

      This post was edited by Chris Kieffer at November 20, 2017 10:22 PM EST
    • November 20, 2017 10:45 PM EST
      • Port Orchard, Washington
         
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      Cool. Look forward to pictures. Now you are making me second guess the fuel tank on the GP30...

    • November 22, 2017 2:14 PM EST
      • Marysville, Kansas
         
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      Here's a couple of quick images of the CAD model of the fuel tank and it accessories.  The shape of the tanks is FAR more accurate than the one USA Trains put on.  I made mounts to represent how it mounts to the loco frame, but the fuel tank will still be mounted to the floor on the model.   You can also see the drain bar and waste tank.  Both prototype locos have the same style waste tank.   All of these are separate parts from the tank itself.  Right now the speaker and the sound card will go in the interior.   I'm getting some HO detail parts to scale for the filler and gauges.   One of the prototypes has the sight glass style gauge, while the other has the round one in the side of the tank.

       

      Chris

       

       

       

    • November 22, 2017 4:57 PM EST
      • Sherwood Park, Alberta
         
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      That looks really good Chris.

       

      Shane

       

    • November 30, 2017 9:07 PM EST
      • edited for your approval, Arizona
         
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      Looking forward to another great build Chris!!

      ____________________________________

       

      Butt Modeler #2

       

       

    • November 30, 2017 9:47 PM EST
      • Marysville, Kansas
         
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      I actually tore one of them completely apart.  Now I can take more measurements and get a better idea of the parts / improvements I need to make.

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