Brad Butcher asked: > This subdivision is refered to as "saw toothed" in several > places that I have read. Now I was looking at the track > charts for the subdivision on the CD I purchased from the > society. But I didn't see much worse then a 1% grade and it > seems relatively short grades as well. Granted I am no expert > at reading the track maintence charts so maybe I am not > properly understanding it. But I am wonder how I may give > some resemblence to this topography. At this moment I'm > thinking of doing an around the basement spiraling up multi > deck layout similart to Tony Koestner's NKP with penisulas to > give it a longer run up the grade to the next level. But his > has a steady 1% or less grade most of the way up and this > would not properly represent. So I thought I would seek the > wisdom of the forum members here for advice. If you have enough room for a long enough mainline, I say "go for it." It would be useful to do a rough sketch in CAD so you can see exactly what type of gradient you'll have. But remember: A 1% grade on an HO scale model isn't nearly as severe as a similar one on the prototype, since equipment weights don't really scale down proportionally. Operationally speaking, it shouldn't be a problem. (1% grade is a change of 1 inch over roughly the length of a 4x8 piece of plywood) Your other concern is how much space between decks are you willing to go with. If you're willing to go with a smaller space, then you can reduce your grade and/or mainline run between levels. - Paul, whose layout will have a constant 1% climb... and it's not even double deck :) The Erie Lackawanna Mailing List http://EL-List.railfan.net/ To Unsubscribe: http://Lists.Railfan.net/erielackunsub.html ------------------------------
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