Yes, the wheels on all four axles have flanges. The truck is made with the ability of the center two axles to move side to side a small amount to accommodate turns.
I thought the BIG boy 4014 had flanges on all its drive wheels.
It does, but it's an articulated design. It's basically two four axle engines connected with a pivot in the center. The rear trailing truck and rear drive axles are mounted solidly to the cab/firebox/boiler structure. The forward drive axles and leading truck are connected at the rear to the front of the rear drive axle frame with a bigass pin assembly. Also the front of the boiler hanging out over the front drive axles and truck has a roller assembly that let the front drive axle assembly support the front of the boiler. When going around a curve, the front assembly will swing out to one side of the boiler.
What gets me is when one government body decides the building is costing too much to maintain and that they need a new building and get and move to that building and then another government entity sees the empty space of the old building and moves in and fixes it up. Its still my taxes paying for both but we must not have a standard for defining the cost of maintaining a building. This is especially true when it comes to government expanding.
The bottom line is the bottom line. Diesel locomotives are less expensive to own and operate than steam.
...and you can shut a diesel electric off while you cannot a steam loco when it's idle. Only time they get shut down is a long period of inactivity or maintenance.
