My dad started working for SP in 1949, and worked around steam engines. Cool photos 1911.
Union Pacific 844 is a 4-8-4 steam locomotive owned by Union Pacific Railroad. It was the last steam locomotive delivered (in 1944) to Union Pacific and is unique in that it is the only steam locomotive never retired by a North American Class I railroad.
Union Pacific 844 was one of 10 locomotives that were ordered by Union Pacific in 1944 and were designated as class FEF-3. The FEF-3 class was similar to the earlier FEF-2 class as both were designed as passenger engines.
UP 844 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. It was chosen for restoration and is now used on company and public excursion trains, along with revenue freight during ferry moves.
Like the rest of Union Pacific's FEF-3 locomotives, UP 844 was originally designed to burn coal, but was later converted to run on fuel oil. Some enthusiasts think it could handle 26 passenger cars at over 100 mph on straight and level track; they would say it was designed to safely operate up to 120 mph with its one piece cast steel bed frame, 80-inch drivers, massive boiler/firebox and lightweight reciprocating parts, which were common on late era steam locomotives. (UP's timetables showed a speed limit for steam locomotives of 80 mph.)
Eel