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.

Track Union Pacific's Big Boy No. 4014 as it travels across our 23 state network. Stay at least 25 feet back from all railroad tracks, not only for your own safety, but also for your best photos and videos!

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.

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.

Feb 11, 2021 · The Union Pacific 'Big Boy' is arguably the most famous locomotive in the USA and is known by railfans across the globe. It remains the most powerful steam locomotive in the world and charts high on the all-time lists of longest and heaviest steam locomotives ever built.

Aug 24, 2020 · The Union Pacific "Big Boy" steam locomotive is the largest steam locomotive ever built. Designed to eliminate the need for a second "helper" engine, the locomotives hauled freight trains over the Wasatch Mountains and later over Sherman Hill in Wyoming.

Union Pacific 4014 is a preserved 4884-1 class 4-8-8-4 "Big Boy" type steam locomotive owned and operated by the Union Pacific (UP) as part of its heritage fleet. Built in November 1941 by American Locomotive Company (ALCO) in Schenectady, New York, it was assigned to haul heavy freight trains in the Wasatch mountain range.

Aug 19, 2022 · Union Pacific fireman Austin Barker feeds sand into Big Boy No. 4014’s firebox. The draft will pull the sand through the flues to clean out any oil residue that has built up. This is a standard procedure for oil-burning steam locomotives.

Only 25 were built. One still steams! The story of Big Boy is the story of America. Dream it. Build it. Build it bigger. Run it a million miles. Then, 60 years later, bring it back for a second chance. Learn about all 25 Big Boy steam locomotives at SteamGiants.com. Start below. © 2024 Steam Giants, A Project of RailfanDepot. Only 25 were built.

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.