Elevated Loop over loop

[DeadheadGreg]

to save from creating a whole new thread, I actually have to do this on my layout.  The track will be on the edges of the layout; the upper track visible and the lower underneith, in the tunnel.  I wanted to have cut-outs in the backdrop so that I can reach in in case something derails inside the tunnel, but I've been stumped as to the best way to go about doing this.  I was thinking of simply building a foam 'box' over the track, and having the top affixed to the backdrop to form the vertical support on that side.  Do you think this would be strong enough?

[sabaj]

 Model Railroadf Planing 2008  special issue  display untill April 22 2008 . For all scales.

Page 68  "What a helix can do for you."

It gives Helix and backbone construction methods  . How to figure grades. use for staging.

Hope this helps. I found it in Wall Mart  but check  www.ModelRailroader.com

[MisterBeasley]

I'd agree.  While the theory of building an elevated track is the same, in practice there are a lot of differences between HO, N and O gauges.  The important thing is the much larger stresses imposed by the larger O stuff.  The Classic Trains gang will be much more familiar with this.  Also, there are manufacturers in each gauge who would have pre-made parts, but once again, different companies supply the different scales.

[vsmith]

I would repost this over in the Classic Toy Trains forum, thats the forum dedicated to O gauge Lionel trains, they could help you much better.

[printer65]

Can anyone help me with a plan to build a loop over a loop totally elevated track. This would be running one train (Lionel O gauge track) over the other around the whole layout.

Tell me how (plans) to build the elevated part to mount the track on.

Ed