Minimum radius 18", maximum grade 4% with helper operations. Minimum turnout is Atlas #4. Mainline run is in the neighborhood of 60 feet. Train length is 6 feet. Designed for Woodland Scenics incline sets with lots of cutting.
Two towns, an engine terminal, a helper terminal, yard, and branch with coal mine. Designed for both passenger (60 foot cars) and freight (40 foot cars) operations. If built, it should look something like the Virginian project layout.
S&S