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 Posted - February 08 2025 : 5:16:40 PM
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Still experimenting: bottom rail is flat with 27" radius curve.
Next is 2% slope with 24.5"radius rising 4".
Then 3% with 22" radius rising 4"
4th is flat 18" at the 8" height.
5th is flat 15"
Who's afraid of bending the rules? Last under consideration is 5% - 6% rise on 13.5" radius rising 4"; Mantua Shifter and Mantua Big 6 push 3 Mantua/Tyco operating hoppers. Mantua F3AB and Athearn GP9 also negotiate this curve and hill. Thinking about mountains for mining and timber operations but the spaghetti trackwork is getting out of hand and reaching over 12"+ mountains to retrieve derailed cars my be an insurmountable problem.
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 Posted - February 09 2025 : 12:19:52 AM
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Bottom line is to have fun. Cool idea.
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Posted - February 09 2025 : 5:04:15 PM
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I likre the way you think vertically.
curves less than 18" and grades over 4% only mean one thing to me TROLLEY LINE!!!! You could easily do the curves and grades you want, and because you aren't running coupled equipment, the S curve problem doesn't apply.
There was a book out in the 1970s, How to RUn a Railroad by Harvay Weiss. In it, he broke the rules with a trolley line and flex track, and obviously had fun doing it.
Personally, I'd love to be able to run models of the PCC cars I rode for so many years in Pittsburgh.
Alternatively, you could set up a mining /tourist train similar to Cass Scenic Railroad, with Shays and Heislers and excursion cars made from old flatcars. Ore cars and Overton coaches would also probably work on those grades and curves. You'll probably want to invest in a truck tuner tool to get whatever cars you want to use as free rolling as possibly.
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