The Steam Locomotive Information Site
Union Pacific RR No. 4012 Scranton, PA, United States

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Wheels: 4-8-8-4
Builder: Alco (Schenectady)
Build Date: 08/1941
Construction No.: 69583
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: Steamtown National Historic Site Status: Display Views: 4317
Record Created: Before June 10, 2017 Record Updated: Never Action: None
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