Are there any Big Boy locomotives left?

Twenty-five Big Boys were built exclusively for Union Pacific Railroad, the first of which was delivered in 1941. Of the eight remaining Big Boys in existence, No. 4014 is the only one operating today. The Big Boys were about 133 feet long and weigh 1.2 million pounds.



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Union Pacific 4014 is a steam locomotive owned and operated by the Union Pacific (UP) as part of its heritage fleet. It is a four-cylinder simple articulated 4-8-8-4 Big Boy type built in 1941 by the American Locomotive Company (ALCO) at its Schenectady Locomotive Works.

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Therefore I say it was and is the largest steam engine that was ever created... There was a machine called the Allegheny type which I think was a 4-6-6-6 which some believe was actually more powerfull and heavier than the Big Boy.

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Puffing Billy is the world's oldest surviving steam locomotive, constructed in 1813–1814 by colliery viewer William Hedley, enginewright Jonathan Forster and blacksmith Timothy Hackworth for Christopher Blackett, the owner of Wylam Colliery near Newcastle upon Tyne, in the United Kingdom.

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Big Boy No. 4014 is the world's largest operating steam locomotive.

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Twenty-five Big Boy locomotives were built for Union Pacific to haul freight over the steep grade of the Wasatch Mountain Range in Utah during World War II. Eight were preserved after the locomotive was retired six decades ago, but only Big Boy No. 4014 is still in operation.

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The Big Boys were built for power. They did the work of three smaller engines, pulling 120-car, 3800 ton freight trains at forty miles per hour in the mountains of Utah and Wyoming. With power, though, comes weight - larger cylinders, pistons, drive rods, boiler and firebox.

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2023 Schedule In 2023, Big Boy No. 4014 visited Omaha on the Home Run Express during June. To be notified of future steam schedule updates, join the Official Union Pacific Steam Club at http://up.com/SteamClub !

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Its girth requires a 4-8-8-4 wheel configuration to keep it rock-steady on the rails. With a puny 7,000 horsepower, Big Boys had a maximum tractive power of 135,375 pounds, all to pull huge loads of freight across steep grades in Utah's Wasatch Mountains and the Rockies.

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The Union Pacific locomotive, known as Big Boy 4014, is the largest locomotive ever constructed. It just rolled in to Southern California after a massive restoration project. Thousands of people welcomed the largest steam locomotive ever constructed as it made its way back to Southern California Wednesday.

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The Union Pacific Centennial is the largest and most powerful diesel locomotive ever built.

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Flying Scotsman has been described as the world's most famous steam locomotive.

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