Mark, thanks for the offer! I'm not sure I'm going to do it yet or not.
Carl, I completely agree with you, that first proposal definitely would not work. I'm sure your suggestion would work, however... I never mentioned this, but I planned on having an elevated town (on top of tunnels) in the back left of the layout so I don,t know if I could pull it off. Yesterday I did a reconfigure of just the loop we are talking about to this (another under):
I did the math and I think it would be a 5% grade down to clear everything, BUT..... I laid the track out on the floor last night and I think the curves will end up being too close to the wall. The cars following the ABA are 18" long passenger cars requiring O42 curves. I think the overhang may smack the wall. In that case and not sure if I'd do the elevated track, I may just scrap this idea.
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