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 …

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. …

In 2024, Big Boy No. 4014 visited 14 of the 23 states served by Union Pacific, with full day stops in Roseville, Ogden, Rochelle, Houston and Fort Worth. Future schedules are still in the …

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 …

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 …

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.

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 …

Union Pacific 4-8-8-4 "Big Boy" Locomotives in the USA During the late 1930s, the Union Pacific often used helpers to move trains from Ogden to Wahsatch. The UP wanted to simplify this …

Union Pacific’s 25 Big Boys were built in two groups. Numbers 4000 through 4019 were built in 1941. The last of this group was finished just after the bombing of Pearl Harbor. Thereafter all …

May 7, 2024 · What are the Union Pacific Big Boys? Between 1941 and 1944, there were 25 Union Pacific Big Boy Locomotives made. Each Big Boy was approximately 132 feet in length …