It's an interesting question, given that the Burlington's D-4's and the C&S's B-4R and B-4S consolidations were very close in size, weight, and driver diameters. The C&S's B-4R's (600 series) were a
To add more fuel to the fire, I have drawings of a proposed D-8 2-8-0 Consolidation (unfortunately not dated) (which even has a drawing for a diamond stack option) and a proposed conversion of D4a to
Charlie: I have to admit I've never understood which the Q went through the complex, costly process of converting the T-1 2-6-6-2s into F-2 0-8-0s instead of converting a like number of D-4s into 0-8
Hol and Charlie - Consolidations were used as switchers on many roads, including the Burlington. Would the removal of the pilot truck on a D-4 have made that much difference? The G-10's converted fro
Jonathan: I agree with everything you said, but presumably if the D-4s had been changed into 0-8-0s (where the absence of a pilot truck improved tracking qualities through the many switches of yards