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Granite Gorge and Northern, Suburban Division [N]

Discussion in 'Layout Design Discussion' started by Mudkip Orange, Sep 2, 2011.

  1. Mudkip Orange

    Mudkip Orange TrainBoard Member

    Having seen several people on this forum and elsewhere online swear by this plan, I was intrigued by the possibility of adapting it for passenger operations.

    Dissecting the original plan
    The basic genius of the GG&N is that it can function as either a double-track figure eight or a folded dogbone, and that it does this without complex reversing loops. Since a straight doubletrack figure-8 looks toylike, the tracks on the lower level are broken apart.

    Converting to passenger
    The lower-level trackwork on the original GG&N comes close to approximating a four-track station and adjacent coach yard, so this makes a natural starting point. Flipping the levels makes the station and yard the centerpiece of the layout. The foreground "reverse loop" on the original GG&N has a crossover on the left-hand side of the layout, then a simple switch on the right. Flipping this so the crossover is on the right "cleans up" the left side of the layout, which allows for an additional, shorter passenger station with its own passing siding. From a modeling perspective, you'd probably want to give the appearance that these are (or were) stations of two competing railways, with different ballast coloration and station architecture.

    After that, I managed to work in most of the spurs from the original GG&N, although to be honest I'm not sure what you'd use short spurs for on a passenger road. Perhaps there's a couple of holdout freight customers who still get served by a nightly switcher run, or perhaps one is a RIP track. At the very least they'd make a decent place to park a Deltic or an EF63.

    Sizing
    The original GG&N was designed for a 5x9, in HO. Most N scale adaptations I've seen shrink this to 4x8 or 4x7, which still requires a "table" with access on both sides. In this plan I "squashed" it to a 3x8 with a peninsula on one end, designed to fit into the corner of a room. The large station platform is designed to hold 8-car EMUs or DMUs of British or Japanese outline (max. length 20m). The small station will hold 4 cars, although there's enough room to stretch that to 6 cars if you so desire. Minimum radius is 12.5" throughout, track centers are 1.25", and turnouts are minimum Peco Code 80 Medium.

    Plans
    GG&N, Suburban Division
    [​IMG]

    The original GG&N:
    [​IMG]
     
  2. ZiggySpaz

    ZiggySpaz TrainBoard Member

    I have to agree with you that the GG&N from Atlas' original Nine N-Scale Layouts has always fascinated me and truly is one of the best layout plans for small spaces. There's a guy the frequents the Atlas Forum that has done a very good job with it. There was a longer & narrower passenger plan in 101 that I always really wanted to do too. Son is asleep in (what will be) the train room so can't get to it right now...
     
  3. Mudkip Orange

    Mudkip Orange TrainBoard Member

    Simplified version of the first plan. This time the focus is more on suburban-rural operation versus urban. The mainline has 3% grades... the "cutoff" towards the back right has a 4% down through the station area.

    Traveling from the junction station to the minor station and back requires three full circuits of the layout. Creates some interesting issues for train phasing and such.

    [​IMG]
     
  4. Kenneth L. Anthony

    Kenneth L. Anthony TrainBoard Member TrainBoard Supporter

    Nice! I like it more than the original.
     

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