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.

On April 27, 1953 the crew of the Union Pacific 4005 freight train started out on a routine haul across the open prairie of southern Wyoming. Engineer Leo Murry, Fireman Lawrence (Ed) Endres, and Brakeman James R. Anderton made up the head end crew.

Union Pacific No. 4005 is a 4-8-8-4 "Big Boy" type articulated steam locomotive built by the American Locomotive Company (ALCO) in 1941 for the Union Pacific Railroad (UP). It is one of the eight surviving Big Boys of the 25 locomotives of …

Unknown Location, or date. possibly denver transportation museum. This makes two Big Boy's in one day. After leaving Cheyenne, WY and haeding home we stopped at the Forney Museum …

Highly requested for a year, we take a look at the only recorded wreck of a Big Boy, the biggest steam locomotive ever built ...more. Thunderbolt 1000 Siren Productions tagged products below. Learn...

During the late 1930s, the Union Pacific often used helpers to move trains from Ogden to Wahsatch. The UP wanted to simplify this move so they asked their "Department of Research and Mechanical Standards" (DoRMS) to design a locomotive that could pull a 3600 ton train unassisted over the 1.14% grade of the Wahsatch.

Union Pacific 4005 is a 4-8-8-4 "Big Boy" type steam locomotive built by the American Locomotive Company for the Union Pacific Railroad in 1941. It was assigned to haul heavy freight trains in the Wasatch mountain range.

2013年4月27日 · Tomorrow is the 60th anniversary since this un-excuseable and fatal accident in Red Desert, WY of the UP 4005 "Big Boy". Here is the link from the Forney Museum of Transportation in Denver relating to the engine, crew, and the fatal event.

The 4005 was the last Big Boy to drift down Sherman Hill from Green River to Cheyenne where it underwent a cosmetic makeover by the UP before it was received by the Forney Museum of Transportation. This Big Boy had logged approximately one million miles before it became a museum exhibit.

2024年7月9日 · UP 4005 was used in a test for conversion of all 4000 class 4-8-8-4 locomotives to oil burning; testing began in December 1946 and lasted less than a year.