Instead, this is a steam turbine, nothing like the 1920s and 30s experiments with conventional locomotives, nor even the Union Pacific’s oil-fired condensing turbo-electrics. The new idea here ...

There are steam locomotives, and then there’s “Big Boy.” At 604 tons and 132 feet long and with a 4-8-8-4-wheel arrangement, it is the largest, most powerful steam locomotive in the world.

All the Latest Game Footage and Images from Train Simulator: BR GT3 Turbine Loco Add-On One of the more unusual locomotives ever to be built, the GT3 Gas Turbine Prototype is nevertheless part of ...