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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.
Union Pacific's legendary Big Boy No. 4014, the world’s largest operating steam locomotive built to conquer mountains, is on tour in five states this summer during its 2024 Westward Bound Tour from Wyoming to California.
Big Boy No. 4014. Twenty-five Big Boys were built exclusively for Union Pacific Railroad, the first of which was delivered in 1941. The locomotives were 132 feet long and weighed 1.2 million pounds.
Aug 6, 2021 · Union Pacific Railroad's 4014 "Big Boy" is the largest operational steam locomotive in the world. It was restored by the railroad in 2019 in celebration of t...
During World War II Union Pacific operated some of the most modern and powerful steam locomotives ever built. Among them were the famous "Big Boys," the largest steam locomotives in the world. Working with them were the "800-class" high-speed passenger locomotives, as well as hundreds of older class steam engines.
Union Pacific 4012, nicknamed "Big Boy", is a 4-8-8-4 type locomotive built by American Locomotive Company in November 1941. It is among the world's largest steam locomotives. One of 25 built, No. 4012 is one of eight of its type to survive the advent of the diesel era.
A thorough examination of a steam locomotive, using the mighty Union Pacific Big Boy as our example.Special thanks to Mark "Hyce" Huber for in-depth expert r...
Jul 12, 2024 · One of the biggest and most powerful steam locomotives in history has returned to life: Union Pacific’s Big Boy 4014. Big Boy weighs in at 600 tons, is 132 feet long, and can move at up to 80 miles per hour while pulling a fully loaded freight train with the force of about 7,000 hp. Union Pacific introduced the first of 25 of these steam ...
Weighing in at 1.1 million pounds and measuring nearly half a football field in length, the “Big Boy” locomotives were designed to haul heavy freight for the Union Pacific railroad over the mountainous regions of Utah and Wyoming.
The Union Pacific Big Boy locomotives are some of the largest and most popular steam locomotives ever made. We look at the history of these massive locomotives.
