# " LAST OF THE GIANTS " UNION PACIFIC RAILROAD BIG BOY STEAM LOCOMOTIVE FILM 71522

A tribute to the "Big Boy" locomotives produced by Union Pacific, "Last of the Giants" shows the end of a memorable era in Western Railroading. The "Big Boy" is the popular name of the American Locomotive Company 4000-class 4-8-8-4 articulated, coal-fired, steam locomotives manufactured between 1941 and 1944 and operated by the Union Pacific Railroad until 1959. In "Last of the Giants" you'll see the development of steam power on the Union Pacific from 4-6-0s, 2-8-0s, and 2-8-2s up to 2-10-2s and even 4-12-2s, shown through film, photos and animated diagrams. This is followed by the development of compound articulated Mallets and simple articulateds such as the Challengers. The text chronicles the era of steam locomotives, highlighting their role in connecting the nation and inspiring dreamers. By 1960, the age of steam had ended, with the "Big Boy" locomotive standing out for its power and efficiency. Known for its awe-inspiring presence, "Big Boy" reliably transpor0ted goods across the country. The evolution of locomotives led to powerful engines like "Big Boy," necessary for longer trains and heavier loads. Designs evolved to include more driving wheels and larger boilers, and articulated locomotives allowed for longer engines. The "Mallet" type used steam twice but had limitations, while the 9000 series struggled on winding tracks. The "Challenger" locomotives provided power and speed. "Big Boy," created during World War II, featured two sets of eight drivers and a…

- Kind: Film
- Genres: Industrial and advertising
- Archive: [Internet Archive](https://archive.org/details/71522LastOfTheGiants_201504)
- Licence or status: none stated by the archive
- Who can watch: Tweens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/ia/71522LastOfTheGiants_201504?play=1)