This railroad paper model is an EMD DDA40X, a 6,600 hp (4.92 MW) D-D diesel-electric locomotive built by the General Motors EMD division of La Grange, Illinois for the Union Pacific Railroad, the papercraft is created by MegaMoonLiner. This paper model is in N Scale (1:160).
Nicknamed "Centennial" and "Big Jack", the DDA40X uses two diesel engines (each 3,300 hp (2.46 MW)) and is the most powerful single-unit diesel locomotive ever built, although more recent locomotive designs such as the GE AC6000CW, EMD SD90MAC and the China Railway DF8C have come close. It is also the longest single-unit diesel locomotive ever built. For more information please click here.
You can download the papercraft model template here: EMD DDA40X Diesel Locomotive Free Railroad Paper Model Download