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Hi guys, I'm new to the forum and new to O-Gauge although I have modeled HO in the past.  I've been designing a layout for the past few weeks with Scram software and wanted to have the community here review my plan.  My brother-in-law and I are using Atlas O track and the minimum radius is O-54, although the majority of it is O63.  There are only 4 pieces of O54 in the red mainline.  The overpasses are 5.5".  The grade changes are as follows... On the right side, around the curve, takes 201.5" of track to climb 5.5" and the left side, along the back wall and curve takes 203.5" of track to climb 5.5".  Please let me know if you see any issues or big mistakes!  We've already started the benchwork and hoping to start laying track mid week.  I've included a dimensioned plan view of our layout space in case anyone is feeling ambitious and wants to shake things up and take a shot at other track options.

GB Layout v8

Layout-Dims

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  • GB Layout v8
  • Layout-Dims
Last edited by Greg Baker
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Thanks Bruce.  It's a transition era layout, anything pre 1960-ish, so I'm not anticipating any oversize cars.  The overpasses are 5.5".  The grade changes are as follows... On the right side, around the curve, takes 201.5" of track to climb 5.5" and the left side, along the back wall and curve takes 203.5" of track to climb 5.5".

If you do not use a minimum O72 for the mainline curves, you may regret it in the future. Also, consider  a provision for a future staging area [freight yard].

 

  A cross over [red to red] in the middle section would provide a reverse loop.

 

If the dimension were in black, they would be easier to read on the forum

.

It is a interesting track plan and should be fun to scenic and operate.

 

Please keep us updated on your progress.

I have a 10x21 space for an around the wall layout that requires access to 2 doors, 1 on one end and the other near that on a side wall. I have no idea how to get curves larger than 054 without resorting to liftouts/swingouts. I'm still designing, but I think I'm okay with limiting myself to engines and rolling stock that will work with 054. One door is nit a problem, but the other door swings in and I'm not sure I'm up to the task of dealing with it and retaining access between the 2 doors.

Great Plan Greg. How large will your turntable & engine yard be?

 

Regarding the curves it all depends on what you want to run. Even 072 curves can make a big boy or large steam engine overhang. IMO go with the largest curves you squeeze, 072, 081 etc. it appears you have the room for the big curves on the left side of your  plan. Right now maybe you do not have any large engines but you might in the furture. If you can squeeze in one large main with 072+ and keep the inside to 063. Just my humble opinion.

 

Best of luck.

Last edited by Seacoast
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