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The Union Pacific Big Boy is a type of simple articulated 4-8-8-4 steam locomotive manufactured by the American Locomotive Company (ALCO) between 1941 and 1944 and operated by the Union Pacific Railroad in revenue service until 1962. The 25 Big Boy locomotives were built to haul freight over the Wasatch Range between Ogden, Utah, and Green ...
Union Pacific 4014 is a steam locomotive owned and operated by the Union Pacific (UP) as part of its heritage fleet.It is a four-cylinder simple articulated 4-8-8-4 "Big Boy" type built in 1941 by the American Locomotive Company (ALCO) at its Schenectady Locomotive Works.
A Big Boy locomotive.This example is Union Pacific 4014. 4-8-8-4 wheel arrangement. A 4-8-8-4 in the Whyte notation for the classification of steam locomotives by wheel arrangement, is a locomotive with a four-wheel leading truck, two sets of eight driving wheels, and a four-wheel trailing truck.
Union Pacific’s Big Boy, a 1.2 million-pound locomotive put into service in 1941, rolls into Kansas City on Tuesday, Oct. 15, 2024. Only 25 of this kind of train were built and this is the last ...
Union Pacific’s No. 4014 steam locomotive is a massive 132-foot long engine that has been touring the rails of middle America since August. See ‘Big Boy,’ world’s largest steam locomotive ...
Twenty-five Big Boy locomotives, which weigh 1.2 million pounds and are 130 feet long, were completed for Union Pacific in 1941. No. 4014 then drove 1,031,205 miles and was in service for 20 years ...
The largest examples were developed in the United States, where the Union Pacific Big Boy 4-8-8-4s and the Allegheny H-8 2-6-6-6s were some of the largest steam locomotives ever built, with Big Boy 4014 remaining as the largest, and last of its kind, to still operate. Many schemes for articulation were developed over the years.
Hundreds gathered at Fort Worth’s T&P Station on Friday, Oct. 11, 2024, to see Union Pacific Railroad’s Big Boy No. 4014. It was the second day the historic locomotive was on display in Fort ...