Union Pacific 844 is a class "FEF-3" 4-8-4 "Northern" type steam locomotive owned and operated by the Union Pacific Railroad for its heritage fleet. Built in December 1944 by the American Locomotive Company (ALCO) of Schenectady, New York, No. 844 is one of four surviving FEF series locomotives and the only one in operation.
Quick Facts Type and origin, Power type ...
Union Pacific 844 |
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Union Pacific No. 844 running through Painted Rocks, Nevada on September 15, 2009 |
Type and origin |
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References:[1] | Power type | Steam |
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Builder | American Locomotive Company (ALCO) |
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Serial number | 72791 |
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Build date | December 24, 1944 |
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Rebuild date | 1959–1960 |
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Specifications |
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Configuration:
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• Whyte | 4-8-4 |
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• UIC | 2′D2′ h2 |
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Gauge | 4 ft 8+1⁄2 in (1,435 mm) standard gauge |
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Driver dia. | 80 in (2,032 mm) |
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Wheelbase | Loco & tender: 98 ft 5 in (30.00 m) |
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Length | 114 ft 2+5⁄8 in (34.81 m) |
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Width | 11 ft 1+1⁄8 in (3.38 m) |
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Height | 15 ft 2 in (4.62 m) |
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Axle load | 66,622.5 lb (30,219.5 kg) |
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Adhesive weight | 266,490 lb (120,878 kg) |
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Loco weight | 486,340 lb (220,600 kg) |
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Tender weight | 421,550 lb (191,212 kg) |
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Total weight | 907,890 lb (411,812 kg) |
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Fuel type | No. 5 fuel oil, originally coal |
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Fuel capacity | 6,200 US gal (23,000 L) |
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Water cap. | 23,500 US gal (89,000 L) |
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Fuel consumption | 15–25 US gal (57–95 L) of fuel oil per mile 100–200 US gal (380–760 L) of water per mile |
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Firebox: | |
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• Grate area | 100.2 sq ft (9.31 m2) (grate removed in 1945) |
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Boiler | 86 3⁄16 in (2189.2 mm) diameter 100 in (2,540 mm) (OD) |
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Boiler pressure | 300 lbf/in2 (2.07 MPa) |
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Heating surface: | |
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• Firebox | 442 sq ft (41.1 m2) |
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• Tubes | 2,204 sq ft (204.8 m2) |
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• Flues | 1,579 sq ft (146.7 m2) |
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• Total surface | 4,225 sq ft (392.5 m2) |
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Superheater:
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• Type | Type A |
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• Heating area | 1,400 sq ft (130 m2) |
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Cylinders | Two, outside |
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Cylinder size | 25 in × 32 in (635 mm × 813 mm) |
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Valve gear | Walschaerts |
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Career |
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Operators | Union Pacific Railroad |
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Class | FEF-3 |
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Numbers | |
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Nicknames | "The Living Legend" |
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Delivered | December 1944 |
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First run | December 1944 (revenue service) 1960 (excursion service) |
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Last run | 1959 (revenue service) |
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Restored | 1960 (rebuilt, but never retired) |
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Current owner | Union Pacific Railroad (Union Pacific heritage fleet) |
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Disposition | Operational |
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Close
The locomotive operated in revenue service until 1959. It was stored while awaiting scrapping, along with the rest of the UP steam locomotive fleet. In 1960, railroad leaders recognized the benefits of having a steam program and retained No. 844 for special activities, the kernel of what has become the Union Pacific's heritage fleet.[2] Today, it is one of UP's oldest serving locomotives[3] and the only steam locomotive never retired by a North American Class I railroad.[4]