The "H&W Spaghetti Bowl" has evolved quite a bit. The new track plan keeps much of the spirit of the old, but is significantly reworked.
The operations plan is to switch the sidings in the "city" in the upper-left quadrant, running trains up to and down from the marshaling yard (which will also have some engine facilities). Trains can also come from or go to off-layout points via staging. (The staging is 7" below the mainline to hopefully allow for some Hand-of-God switching.)
Scenically, most of the layout will be urban; the bottom and right will be rural/suburban using a viewblock (the blue line, location approximate in at this point) to separate the two areas visually. The mainline and marshaling yard are vertically separated by about 5".
Not shown yet is which parts of the trackwork are hidden, which includes: all staging track (green); the section of reversing loop that is under the marshaling yard; and parts of the track leading to the marshaling yard. Nearly all of the mainline track (blue) will be visible, as will the entirety of the marshaling yard.
Turnouts are #6 on the mainline, #4 on sidings.
Max grade is 2.6%.
Minimum radius is 18 inches.
Concerns:
There are a couple places where the trackwork comes awfully close to the edge of the benchwork. If this is problematic I have a little room to scoot things around -- or tack on a couple inches of length (a slippery slope, I realize).
There is one really complex bit of trackwork near the upper-left corner where the mainline and reverse loop meet. That crossover involves a 22" radius curved piece of track and a straight piece. I'm not afraid of a little handlaid track, but is this potentially problematic operationally?
My main question remains the same as before: can I build this thing and have it operate reliably?
Best,
Thomas
The operations plan is to switch the sidings in the "city" in the upper-left quadrant, running trains up to and down from the marshaling yard (which will also have some engine facilities). Trains can also come from or go to off-layout points via staging. (The staging is 7" below the mainline to hopefully allow for some Hand-of-God switching.)
Scenically, most of the layout will be urban; the bottom and right will be rural/suburban using a viewblock (the blue line, location approximate in at this point) to separate the two areas visually. The mainline and marshaling yard are vertically separated by about 5".
Not shown yet is which parts of the trackwork are hidden, which includes: all staging track (green); the section of reversing loop that is under the marshaling yard; and parts of the track leading to the marshaling yard. Nearly all of the mainline track (blue) will be visible, as will the entirety of the marshaling yard.
Turnouts are #6 on the mainline, #4 on sidings.
Max grade is 2.6%.
Minimum radius is 18 inches.
Concerns:
There are a couple places where the trackwork comes awfully close to the edge of the benchwork. If this is problematic I have a little room to scoot things around -- or tack on a couple inches of length (a slippery slope, I realize).
There is one really complex bit of trackwork near the upper-left corner where the mainline and reverse loop meet. That crossover involves a 22" radius curved piece of track and a straight piece. I'm not afraid of a little handlaid track, but is this potentially problematic operationally?
My main question remains the same as before: can I build this thing and have it operate reliably?
Best,
Thomas
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