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railroadclass=FEF-3|
railroadclass=FEF-3|
deliverydate=1944|
deliverydate=1944|
retiredate=never
retiredate=NEVER!!
}}'''Union Pacific 844''' is a [[4-8-4]] [[steam locomotive]] owned by [[Union Pacific Railroad]]. It was the last steam locomotive delivered to Union Pacific and is unique in that it is the only steam locomotive never retired by a [[North America]]n [[Class I railroad]]. It was designed as a passenger engine and pulled such trains as the ''[[Overland Flyer]]'', ''[[Los Angeles Limited]]'', ''[[Portland Rose]]'' and ''[[Challenger (passenger train)|Challenger]]''. It was reassigned to freight service when [[diesel-electric]] locomotives took over passenger service and operated from [[1957]] to [[1959]] in [[Nebraska]]. It was saved from being scrapped in [[1960]] and is now used on excursion trains.
}}'''Union Pacific 844''' is a [[4-8-4]] [[steam locomotive]] owned by [[Union Pacific Railroad]]. It was the last steam locomotive delivered to Union Pacific and is unique in that it is the only steam locomotive never retired by a [[North America]]n [[Class I railroad]]. It was designed as a passenger engine and pulled such trains as the ''[[Overland Flyer]]'', ''[[Los Angeles Limited]]'', ''[[Portland Rose]]'' and ''[[Challenger (passenger train)|Challenger]]''. It was reassigned to freight service when [[diesel-electric]] locomotives took over passenger service and operated from [[1957]] to [[1959]] in [[Nebraska]]. It was saved from being scrapped in [[1960]] and is now used on excursion trains.



Revision as of 03:44, 5 June 2006

Union Pacific 844
UP 844 approaching Hutchinson, Kansas
Type and origin
Power typeSteam
BuilderAmerican Locomotive Company
Specifications
Configuration:
 • Whyte4-8-4
Gauge1,435 mm (4 ft 8+12 in)
Wheelbase98 ft. 5 in. (locomotive and tender)
Adhesive weight266,490 lb.
Total weight907,890 lb.
Fuel typeNo. 5 fuel oil, originally coal
Tender cap.23,500 gallons water, 6,200 gallons oil
Firebox:
 • Grate areagrate removed in 1945
Boiler86-3/16 in. diameter
Boiler pressure300 psi
Heating surface:
 • Firebox442 ft²
 • Tubes2,204 ft²
 • Flues1,578 ft²
 • Total surface4,224 ft²
Superheater:
 • Heating area1,400 ft²
Cylinder size25 in. diameter, 32 in. stroke
Performance figures
Factor of adh.4.18
Career
Delivered1944
RetiredNEVER!!
Dispositionoperates in occasional excursion service

Union Pacific 844 is a 4-8-4 steam locomotive owned by Union Pacific Railroad. It was the last steam locomotive delivered to Union Pacific and is unique in that it is the only steam locomotive never retired by a North American Class I railroad. It was designed as a passenger engine and pulled such trains as the Overland Flyer, Los Angeles Limited, Portland Rose and Challenger. It was reassigned to freight service when diesel-electric locomotives took over passenger service and operated from 1957 to 1959 in Nebraska. It was saved from being scrapped in 1960 and is now used on excursion trains.

From 1962-1989, this locomotive was numbered UP 8444 due to a conflict with the railroad's numbering plan for the EMD GP30 locomotives that UP owned at the time. After the conflicting GP30 was retired from service in June 1989, 8444 was renumbered back to 844.

A second 4-8-4, UP 838, is kept in the shops at Cheyenne, Wyoming so that spare parts for 844 can be cannibalized from it.