4-8-8-4 radius?

virtual-bird Jun 10, 2000

  1. virtual-bird

    virtual-bird TrainBoard Member

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    I found my new fav loco..
    a 4-8-8-4 Big Boy.. man thats a nice lookin machine...

    what radius curves would one need to run one with out hassles?

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    RR:
    K, C, & Bird Butt Railroad - SP, NS, and ROCK admirer.
    Its a coal mining region of a place far far away, that runs, SP, NS, and some CSX..
    Also some Custom RARE Bird RR sd40-2's coming!
    Era:
    Time stands still round these parts, and we have everything from Steam, to Diesels of today.
     
  2. Robin Matthysen

    Robin Matthysen Passed Away October 17, 2005 In Memoriam

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    Great loco for sure. To make it look realistic I suggest a minimum of 20 inch radius. My Mallet looks great on 20 but not so good on my minimum 15 inches
    Robin
     
  3. Craig Martyn

    Craig Martyn TrainBoard Member

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    Does anyone have or know someone who wants to sell a big boy? Thanks, I'm looking for one!


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    Craig Martyn

    BLMA(best looking models around)
    Custom painting and detailing

    **Soon to come, N scale detail parts!!!
     
  4. espee2

    espee2 TrainBoard Member

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    my favorite used to be big boy... then the 4449, now, after seeing them all at Railfair... my new favorite is by far the ATSF 3751... very huge looking... looked bigger than challenger (looked) when you get right up next to them... must have been those 85" drivers, and the tappered main rods as big as a Cadillac!!!

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    espee2

    Home: www.tunnel13.com 
    layout: SP's Newberg Branch in N scale
     
  5. porkypine52

    porkypine52 TrainBoard Member

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    As big a radius as you can have. You need to run a big engine like a 4-8-8-4 or any big steam on large curves. Don't get all hung up on this "minimum radius" stuff. There is a lot more to designing a track plan for long wheelbase engines, steam or diesel, than just the curves. Try your "Big Boy" on 10",20" and 30" curves and see how much better the engine looks on a large radius curve. Also whenever you can use an easement curve to go from a tangent(straight) to a curve. Makes it a whole lot easier on the engines going into a curve.

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    Let's Go Run Trains
    MARK
     
  6. virtual-bird

    virtual-bird TrainBoard Member

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    <BLOCKQUOTE>quote:</font><HR>Originally posted by Craig Martyn:
    Does anyone have or know someone who wants to sell a big boy? Thanks, I'm looking for one!

    <HR></BLOCKQUOTE>

    EBAY there is a few...
     
  7. Colonel

    Colonel Staff Member TrainBoard Supporter

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