We have settled in well after our move and I finally got my basement ready for layout construction, and have started benchwork. Unfortunately I have lost all my specifications for track spacing, bridge clearance for over and under tracks and tunnel portal clearances etc etc . Somewhere online was a listing of all that information for 1:20.3, 1:22.5, and 1:29 which I had kept for reference. I have tried several searches but have had no luck finding it again.
Anyway I am hoping someone can point me to the link or related links so I can start track laying. in the next few weeks.
Than ks,
Bill
I can't think of an on-line resource for that, but for my 1:20 stuff, I use 7" center-to-center spacing on sidings, 7" minimum width on bridges and tunnels (8" if they're on curves), and a 10" minimum vertical clearance.
If you know you're only going to be running the smaller/narrower 1:29 stuff, you can get away with 6" centerline and horizontal clearances on tunnels (7" on curves), and 9" height.
Later,
K
Thanks Kevin,
It is helpful, I plan to lay the track to accommodate 1:20.3, that way I can run any large scale. Doing it in the basement has been challenging since I have set the maximum grade at 2%.
I should have been more specific about what I was looking for though. The NMRA has a clearance tool which looks sorta like a tunnel portal, some one in an article told how to make one for large scale and I made one which has become lost in the move. I was hoping to make another one because it makes it super simple to measure all types of clearances.
None the less I will just wing it the old fashioned way, and will go with the 1:20.3 demensions.
Thanks again, Bill
Bill:
Check your email.
Happy RRing,
Jerry
Thanks Jerry!!