UP Big Boy 4014 Negotiates Sharp Curve In Bryan Texas
WEBWorlds largest operating steam locomotive shows its articulation on a sharp curve.
Union Pacific Big Boy - Wikipedia
WEBThe 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.
World's Largest Operating Steam Locomotive: Big Boy 4014 ... - YouTube
WEBNov 2, 2019 · Union Pacific Big Boy 4014 pulls a Rail Giants Train Museum excursion up-grade through Sullivan's Curve while ascending Cajon Pass on October 12th, 2019.
UP 4014 Big Boy Rounds a Sharp Curve. - YouTube
WEBBig boy steam locomotive displayed its articulation on a sharp curve in Bryan Texas.Also a bit of street running.
UP: UP No. 4014 - The Big Boy - Union Pacific
WEBThe 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 curves.
Union Pacific 4014 - Wikipedia
WEBThe Big Boy was articulated like the Mallet locomotive design, although without compounding. [6] It was designed for stability at 80 miles per hour (130 km/h), allowing for a wide margin of reliability and safety, as steam locomotives normally operated well below that speed in freight service. [7]
A Look Inside the Spine of the 'Big Boy' - Union Pacific
WEBJan 3, 2018 · Locomotive No. 4014's front engine bed weighs nearly 45 tons. Union Pacific's steam team finally is getting down to the bones of UP No. 4014, the 'Big Boy.'. The locomotive's big steel front engine bed has been exposed …
The 4-8-8-4 "Big Boy" Locomotive: UP's Legendary Behemoth
WEBAug 25, 2024 · Only 135-footers were in service at Cheyenne, Laramie, Green River, and Ogden.) many wonder how a locomotive as large as the Big Boy could ever negotiate curves without derailing. The answer can partially be found in its articulation while American Locomotive explained the design challenges of the 4 …
Union Pacific 4012 - Wikipedia
WEBUnion Pacific 4012, nicknamed "Big Boy", is a 4-8-8-4 type locomotive built by American Locomotive Company in November 1941. It is among the world's largest steam locomotives. One of 25 built, No. 4012 is one of eight …
Union Pacific Big Boy basics and frequently asked questions
WEBAug 3, 2021 · A: Big Boy was built to go as fast as 70 mph, but the locomotives rarely ran more than 50 mph, a speed the UP still finds convenient. Q: How much can it pull? A: With more than 6,000-horsepower, Alco and Union Pacific designed Big Boy to pull a 3,600-ton train across the mountains of Utah and Wyoming.