Union Pacific RR No. 4018 Dallas, TX, United States Photo Copyright © Greg Ramsey   Click to Enlarge Wheels: 4-8-8-4 Builder: Alco (Schenectady) Build Date: 08/1941 Construction No.: 69589 Empty Weight: 762,000 Weight on Drivers: 540,000 Driver Diameter: 68 Tractive Effort: 135,370 Boiler Pressure: 300 Cylinders: 23.75x32 Fuel: Coal Gauge: Standard Location: Museum of the American Railroad Status: Display

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