Yes,......I know...........another new thread by me. Guess I have more questions than answerssign1. But that is why I LOVE this website. anyway, I was wondering if there is a common measurement for the space between two mainline tracks in HO.
Interesting, on my prototype the track centers are 14 feet between main tracks and 15 feet between main track and a siding. Yard track spacing is only 13.5.
I don't know what that is in scale, but I bet it's less than the 1 13/16ths as per NMRA RP.