Union Pacific BIG BOY 4-8-8-4 1/48 Scale

Discussion in 'Gallery & Designs' started by kooklik, Feb 20, 2008.

  1. kooklik

    kooklik Member

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    :mrgreen: Hi to all
    Thanks for the good link that gives me clear answer about radiator. Now I'm looking for the its drawings in my CD. Hope I'll find them out soon. Yesterday I started cab building. Here is the latest.
    Boiler-18.jpg
  2. kooklik

    kooklik Member

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    Running Boards and Hand Rails
    Boiler-19.jpg
  3. kooklik

    kooklik Member

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    Sand boxes
    Boiler-21.jpg
    Boiler-22.jpg
  4. logicman

    logicman Greybeard

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    Hi, Kooklik!

    It's coming along nicely. I wish I could use CAD - never learned - still using Paintshop Pro - no automated joining-up of lines.

    I was looking for more information on the Chapelon Nord, and found this instead: wall1

    A close up front of Big boy 4006:
    http://www.yesteryeardepot.com/UP4006X.JPG

    I hope you agree that it's worth a look.

    :wave:
  5. kooklik

    kooklik Member

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    Hi Logicman
    That pic is helpful for me. I saw an eqipment like a pump behide the front grill. Don't exactly what it is.
    ----kooklik----
    :p
  6. hmas

    hmas Member

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    More than likely a pump to send the water from the condenser back to the tender.
    it will be on the pdf's of the loco construction
    Tony
  7. kooklik

    kooklik Member

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    Thank you Tony
    I'll find them in the UP drawings disk.
    BR.
    ----kooklik----
  8. kooklik

    kooklik Member

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    Hi there

    I continue with other euipments those I found in the UP's drawings. Added main steam pipe for back engine and its exhaust pipe. Above the pipe, there's a bottle shape tank like a high pressure tank. Does anyone know what it for?

    ----kooklik----
    Boiler-32.jpg
    Boiler-33.jpg
  9. chooch.42

    chooch.42 Member

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    Kooklik, Hello ! Stunning design work...can barely imagine what building this loco from card will entail, but you seem to have it well in hand. The tank you asked about is an air reservoir for the engine and train brakes and other appliances (bell, whistle, traction sand, etc.). I believe the equipment you asked about behind the shield on the pilot is the air compressor(s) and after-cooling radiator of the later arrangement.Thanks for sharing your expertise with us (Guage-types), too! Bob C.
  10. kooklik

    kooklik Member

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    Thank you Bob and Tony for the clear answer of the air tank and radiator. I found the radiator's drawing and will add it later. Now I'm designing the reverse cylinder. It's rather complicated and small one.
    BR.
    ----kooklik----
  11. kooklik

    kooklik Member

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    Hi there
    Not updated here for a moment. But the designing work is continueing. The reverse cylinder and ash pan were completed since last week. Now the cab interior work is beginning.
    BR.
    ----kooklik----
    Boiler-42.jpg
  12. logicman

    logicman Greybeard

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    Great work, as always, Kooklik.:thumb::thumb::thumb:

    Take your own time and keep it fun.

    Thanks for sharing.
    :wave:
  13. kooklik

    kooklik Member

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    updated 31-May-08
    Boiler-48.jpg
    Boiler-53.jpg
  14. kooklik

    kooklik Member

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    Hi there
    Not update over a week. But I'm still working on Bigboy. Just finished the tender's milliped wheels. Those wheels are same size as Engine's truck's wheels.
    :mrgreen:
    Boiler-60.jpg
  15. MadHatter

    MadHatter Charging at full tilt.

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    Sho! Your loco is coming along nicely!!!
  16. logicman

    logicman Greybeard

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    It's really coming along nicely, Kooklik.

    I look forward to buying the model kit.

    :wave:
  17. kooklik

    kooklik Member

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    To keep small details be buildable , I decided to rescale from 1/48 to 1/30. Length 0.87m to 1.30m. Now 3D model is 90%. I'll rescale and unroll soon.
    :)
  18. hmas

    hmas Member

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    Thankyou Kooklik
    Of course anyone who wants to build it smaller can.

    I'll have to get one now!:mrgreen: Even with my poor eye-sight & fat little paws I might be able to make itsign1
    Tony
  19. redhorse

    redhorse Member

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    I hadn't checked in on this thread for a while, wow! It's looking really really good. And now it's 1/30th!! I still want to rescale to 1/25th to go with my Polish locomotives...

    Awesome job!
  20. kooklik

    kooklik Member

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    Hi MadHatter,Logicman,Tony and Redhorse
    Thanks for all your kind words and comments. Yesterday I finished the milliped wheels brake and suspension. Some of unseenable details (brake rods and cylinders) are not included. They are so small and too complecated to build. I want to know how they maintained those complecated brake system.
    Here are the latest pictures.
    Tender-03.jpg
    Tender-04.jpg

    Best Regards
    ----kooklik----
    :mrgreen: