Would that steam locomotives were sprung so that all weight were equal on all axles (like dismals)

However, they are not. My 1937 D&RGW folio book shows that the total weight on drivers for the 168 and 169 is 50,643# and for the C-16s 54,330 #.
Thus the average weight per driving axle is 16,881# for the T-12s, and 13,582# for the C-16s'. The real killer though is in the notes on how the engines were sprung.

The maximum weight driving axle on the T-12, is the main driver axle, and it is 20,600# while the maximum weight driving axle on a C-16, is 16,885# on the second driver axle (which is mis listed as the intermediate, not the main)

Thus, any way that you cut it, a T-12 is harder on the track than a C-16.



Edited 1 time(s). Last edit at 03/11/2017 04:18PM by Everett Lueck.