The GP-40 was produced the Electro Motive Division in the late 1960s and early 1970s, the GP-40 was a 3000 horsepower locomotive best characterized by the three full size radiator fans on the rear of the roof.
Walkway safety tread
Blackened metal wheels
Scale Speed motor
Factory-equipped with AccuMate knuckle couplers
Dynamic brakes (as appropriate by railroad)
Silver Sound Ready:
Atlas Silver Sound Ready models are equipped with a speaker for easy conversion to sound with the addition of a decoder