Union Pacific 1243

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Union Pacific 1243[1]
UP No. 1243 on static display at the Durham Museum
Type and origin Power type Steam Builder Cooke Locomotive and Machine Works Serial number 2054 Model UP Class T-57[2] Build date October 1890
Specifications Configuration: ​  • Whyte 4-6-0  • UIC 2′C n2, later 2′C h2 Gauge 4 ft 8+1⁄2 in (1,435 mm) Adhesive weight 114,000 lb (52,000 kg) Loco weight 148,500 lb (67,400 kg) Fuel type Coal Boiler pressure 165 lbf/in2 (1,140 kPa) Cylinders 2 Cylinder size 19 in × 24 in (483 mm × 610 mm) Valve gear Stephenson Valve type Slide
Performance figures Tractive effort 21,300 lbf (95 kN) Factor of adh. 5.35
Career Numbers 1477 (1890–1915), 1243 (1915–) Retired 1956 (revenue service) Restored 1990 (cosmetically) Current owner Durham Museum, Union Pacific Railroad Disposition On static display

Union Pacific 1243 is a preserved 4-6-0 "Ten Wheeler" type steam locomotive on display at the Durham Museum in Omaha, Nebraska.^[3] Built in 1890, No. 1243 is one of the oldest "Ten Wheelers" owned by the Union Pacific Railroad (UP). It is often named the "Harriman Engine" because, along with sister locomotive No. 1242 currently displayed in Cheyenne, Wyoming, it is the only engine owned by the Union Pacific Railroad from the era when E. H. Harriman controlled the Union Pacific.