@DoubleDAZ posted:The minimum recommendations I’ve seen are 3.5” in yards so you can fit your fingers in to lift cars manually. On straights, it’s 4.5” to let trails pass at scale speeds. It’s also the distance of the Atlas dual-track truss bridge and the Ross double-crossover. On curves, it’s whatever your engines need. Many get away with 4.5” there too, but some large scale articulated engines can require upwards of 6” when passing a train with long passenger cars.
Doubledaz you say the ctc spacing on the Atlas double track truss bridge is 4.5 inches. I have seen other posts that say it is only 4 inches. I was going to purchase one of those bridges but definitely need 4.5 inches. Are you sure thats what the ctc measurement is? Do you actually have one of those bridges?
