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Union Pacific 3985 is a four-cylinder simple articulated 4-6-6-4 "Challenger"-type steam locomotive built in July 1943 by the American Locomotive Company (ALCO) of Schenectady, New York, for the Union Pacific Railroad. No. 3985 is one of only two Challengers still in existence and the only one to have operated in excursion service.
No. 3985 was restored in 1981 and used by Union Pacific on excursions until October 14, 2010, when mechanical problems forced it from service. It was officially retired from UP excursion service in January 2020. In April 2022, Union Pacific donated No. 3985 to the RRHMA and sent it to the RRHMA's workshops in Silvis, IL in November of that year.
Union Pacific Challenger No. 3985 is an example of a 4-6-6-4 locomotive. In the Whyte notation for classifying steam locomotives by wheel arrangement, a 4-6-6-4 is a railroad steam locomotive that has four leading wheels followed by two sets of six coupled driving wheels and four trailing wheels. 4-6-6-4's are commonly known as Challengers.
Pages in category "Union Pacific Railroad locomotives" The following 38 pages are in this category, out of 38 total. ... Union Pacific 3985; Union Pacific Big Boy ...
In early June 1935 the Union Pacific transferred the heavyweight coaches and tourist sleeping cars of its Los Angeles Limited to a second section, the Challenger. The new train met with such success that the UP ordered 68 cars rebuilt, including 47 coaches, 16 Pullman sleeping cars, and 5 dining cars. The coaches had large reclining chairs and ...
The Union Pacific Big Boy is a type of simple articulated 4-8-8-4 steam locomotive manufactured by the American ... (taken from UP Challenger No. 3985). [a] 4884-1 4017
Union Pacific said it earned $1.67 billion, or $2.75 per share. That’s well ahead of the $1.53 billion, or $2.51 per share, Union Pacific earned a year ago, but just behind what Wall Street ...
Union Pacific: 3950-3999 ALCO: 1936–43 Steam 4-6-6-4: 485 tonnes (535 short tons) 433 kilonewtons (97,350 lbf) 3,728 kilowatts (5,000 hp) Two locomotives preserved, one on static display. Union Pacific 3985 operated for company PR and occasional excursion service from 1981 to 2010