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helex

  1. HO Scale
    I am still in the planning stage of my new layout. It is going to be a bi-level layout with a helix. The helix has a 2% grade and a radius of 26". It is traveling up roughly 28" with 6 1/2 turns. Is this too steep and/or the radius too small. I will primarily be running auto racks and intermodals.
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