Union Pacific donated eight “Big Boy” locomotives to museums across the United States. “Big Boy” #4017 is preserved inside the National Railroad Museum’s climate-controlled Lenfestey Center. Providing fuel and water to feed “Big Boy” was a major task.

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 4017, or UP 4017, is a four-cylinder articulated 4-8-8-4 "Big Boy"-type steam locomotive owned by Union Pacific Railroad. It was built by ALCO in 1941 along with the other Big Boy locomotives to rectify issues with the preceding 4-6-6-4 "Challenger" class locomotives.

May 7, 2011 · NS 301 poses Union Pacific power led by SD70M 4017 and NS D9-40CW 9781 through Staunton IL on 10-14-10. Eastbound manifest slowing for a crew change east of town. Q 346 with 117 cars and 9 empty stack platforms heads past the park and to the Tennessee River bridge behind a set of UP power.

UP 4017 in Green Bay, WI. 10/25/1996 photo by Wes Barris 4017: National Railroad Museum, Green Bay, WI A Brief History. By November 30, 1958, 4017 and all other Big Boys were retired and stored in a "dead line". July 7, 1959, 4017 is returned to steam.

Feb 11, 2021 · 4017: Up in the far north of the USA, on the shore of Lake Michigan, is the Natioanl Railroad Museum at Green Bay, Wisconsin. UK railfans will know this as one of only two places to find one of the famous A4 Pacifics outside of Britain.

Dec 20, 2016 · The Union Pacific Big Boy was one of the largest and heaviest steam locomotives ever built. Weighing over 1,189,000 lb (539,000 kg), the engine produced 6,290 hp (4,690 kW) and could pull over 100 cars.

Take a closer look at Union Pacific #4017 "Big Boy," which is displayed at the National Railroad Museum in Green Bay, Wisconsin. For more, please visit natio...

Now, how to get 4017, the chosen Big Boy, to Green Bay. Union Pacific was to deliver 4017 to the Chicago & North Western who would ferry the Big Boy all the way, but at the last moment, the Milwaukee Road stepped in and asked for the honor of moving the engine.

Jul 2, 2023 · 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. Because of their great length, the frames of the Big Boys were "hinged," or articulated, to allow them to negotiate...