I'm in the benchwork stage now. I've bent 3/4" plywood for a 3.75
degree grade. That is a rise of 3 & 3/4 inches over a length of 100
inches of roadbed. (Actually measured off the plan.) In reality my
grade might be 3.69 or even 3.82. Close enough.
If you keep your grade below 4% and your risers at least 16" apart
the plywood should bend smoothly enough to cause no problem in S
scale. In N or HO scale of course you have to work to much finer
tolerences. Isn't S great?
George Courtney
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