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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.
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...
Jul 16, 2024 · Big Boy, one of the largest and most powerful series of steam locomotives ever built. Produced from 1941 to 1944 by the American Locomotive Company of Schenectady, N.Y., exclusively for the Union Pacific Railroad, the Big Boy locomotives were designed primarily to handle heavy freight traffic in.
Feb 2, 2024 · Pulled from retirement to handle a surge in freight business, Union Pacific 4-8-8-4 #4007 steams westbound as it climbs Sherman Hill on the new single-track, low-grade line west of Cheyenne, Wyoming on a late summer's afternoon in 1958. James Ehernberger photo. Author's collection.
Union Pacific #4017 “Big Boy”. 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.
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.
There were only 25 built, but the 4-8-8-4 steam beasts made headlines thanks to their incredible size and power. Considering only 25 were built, finding photographs of each and every one is not easy. But we did it. Read on for a rundown, with photos, of each Big Boy built.
Jun 14, 2021 · Twenty-five Big Boys were built exclusively for Union Pacific, the first of which was delivered in 1941 to handle the steep terrain between Cheyenne and Ogden. Of the eight still in existence, No. 4014 is the world's only operating Big Boy.
