PROTO N(TM) Diesel EMD GP20 -- Union Pacific(R) #487

* New Schemes & Numbers * DCC-Friendly Mechanism w/Clip-Fit Circuit Board * All-Wheel Drive & Electrical Pickup * Dual Machined Brass Flywheels * Heavy Die Cast Split-Frame Chassis * Powerful Skew-Wound Motor * Mcro-Trains(R) Knuckle Couplers * Constant Intensity & Directional Headlights * RP-25 Wheels Operate on Code 55 & Larger Rail * Roadnumbers Listed will Not be Re-run * Engines in this run will be Discontinued When Sold Out 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 equip