That locomotive was the SD50. Advertisement All the Latest Game Footage and Images from TS Marketplace: Seaboard SD50 Livery Pack Tucked between the classic SD40-2 and the SD60 was a transitional ...

Until the advent of the SD50 model in 1981, the dynamic braking resistors of GM locomotives were located in the middle of the long hood directly above the diesel engine in a pronounced bulge or ...