ON18 .. what?
On18 makes use of N gauge track to model what is ‘close’ to 18″ gauge track in O scale. N gauge track is 9 mm/0.354~” between the rails. In O scale that is 17″ … but since there WAS mining track measuring 18″ we call it On18 instead of On17.
Overview My On30 layout originated as two 2'x4' modules from the time they were part of the Carolina On30 Conspiracy. The modules contained only a single siding servicing some coke ovens. To add a bit of .. call it whimsy ..I added Peco HOn30 track to replicate a bit of a line from a mine....