3-rail vs. 4-rail turntables

That strikes me as a more complicated and failure prone solution. It seems to me you'd have balance problems, need two locks at each TT lead, and that there would be a slight angle between the tt bridge and the approach tracks when in the offset position shown. Much easier, and safer, to just have draws on the approach track(s). Might not even be much more expensive.

Question(for those old enough to know): At dual gauge roundhouses (Alamosa, Salida in later years) did the D&RGW run 4 rails all the way into each stall or were there draws on the RH tracks too? And what did the C&S do at Denver?

Hank

PS(NNG) and what did electric lines with 3rd rail do if they had a TT?



Edited 1 time(s). Last edit at 06/25/2022 08:31AM by hank.