I am getting ready to start a third and final layout (so I say) and am needing some help with some track plans. I am working in a 11.5x16 area and am wanting a bi-level u-shaped design. On the bottom level I am looking for more of a simple scenic 2 track main with a helix to the second level. On the top level, I am wanting more of a narrow, maybe 18 inches, point-to-point industrial operation, a yard, and a reverse loop understanding it will take a larger curve… I DO HAVE an area in the right hand bottom side of the “U” where I can place the helix out of sight and out of the way of the rest of opperation. I opperate mainly F7 units, but also an Alco PA and a couple SD70ACE units as well (don’t beat me up too bad for not being prototypical). Does anyone have any ideas or have modeled a similar situation that you can show me or help me with?
It is going to take some compromises to fit your desires into your space. How firm are you on the U-shape? An around the room with a peninsula will get you a lot closer.
I could also use a wye coming out of the helix as my “reverse loop,” right? This would get rid of the physical loop at one end of the upper deck and allow me to keep all sides of the upper deck to a reachable simple depth.
http://cs.trains.com/mrr/f/11/t/229296.aspx – 5 Compact Track Plans thread was brought back a few days ago about The Chippewa Central. Refer to the article + trackplan in the 2nd reply – Where its HO Scale benchwork dimensions has three sections (4’x4’ + 2’x4’ + 4’x4’). So, you you can see how much trackplan can fit into this area.
CR&T’s local inspiration for helix portals are the Gallitzin Tunnels. Note this neat 2001 picture of a PRR E8 – “Same tunnel” in 1965 before new 2-track portal/bridge construction with Horseshoe Curve helpers – Also note the old steam/smoke blowers, and the AR Tower Wye which is actually a reversing loop for helpers back to Altoona, PA.
My U-shaped (N Scale) CR&T plans a year ago (the 5th reply), was always to use the C.C. to the right of the helix on the lower level, but now – CR&T will be placed, on the upper level, where its smaller traction radius curves are more effective, plus at eye level. The lower level, formerly the upper level, is still pure Pennsy, suited to larger track radius. Plywood cookie-cutter will be employed to better control grade transitions, and strength for stress from traction poles and overhead wires
