EMD GP20 Low Hood - Standard DC - PROTO 2000(R) -- Electro-Motive Division #5627 (Demonstrator Scheme; blue, silver, white)

* Road-Specific Detailing * Five-Pole Skew-Wound Armature Motor * 14:1 Gear Ratio for Easy Multiple Unit Operation * Machined Brass Flywheels * All-Wheel Drive * Precisely Meshed Helical Gears for Silent Running * Constant & Directional Headlights * Heavy Die Cast Chassis for Maximum Traction * Proto MAX(TM) Metal Knuckle Couplers * Soundtraxx(R) Tsunami(R) Sound for DCC & DC Layouts By the mid 50s, increasing pressure from long-haul trucks, declining passenger revenues and mounting costs forced western railroads to find new ways to improve service. Faced with expensive overhauls of early cab and hood unit diesels, many began looking at new equipment as well as ways to improve existing motive power. In 1955 Union Pacific equipped several GP9s with turbochargers as an experiment. Their success inspir