Biggest-Ever Built: Facts About the Historic Big Boy No. 4014

As Big Boy No. 4014 begins its Westward Bound Tour, Union Pacific reminds onlookers of the size, mechanics and history that make the Big Boy so special.

[musiczen]

Thank you for coming to Roseville, CA! It was magnificent. Please come back again.

[the-terrible]

Thank you for the information, you guys are the best, happy early-Independence Day, @unionpacific.

[Gayacegunslinger]

One of my favorite locomotives from one of my favorite railroads, built by my favorite builder right in my hometown!

Oh and fun fact: My great aunt helped build the Big Boys back in the 40s!

[richarddunn]

Saw Big Boy in DeSoto MO the event was as Big as the solar eclipse and that was massive! Thanks U.P. !

[derrickconnor]

So glad the King of steam back, just sad hes not coming to southern California on the west coast tour

[Brayden]

Can’t wait to see big boy in Chicago this fall!!!! Roll on big boy

[SC-rw]

What a freaking icon of days gone by. Can't believe it's coming to Big Sandy Texas next month. I'll definitely be there.

[Naviss]

Amazing to see the Big Boy running again!

[Axllovestrainz]

I was so happy to see the big boy in 2021

[saketsoni]

Love you steam locomotive 🚂 ❤️ love you Big Boy from India 🇮🇳 💙 ❤️

[lilfrostygamplays]

Hoping to see you all In Chicago this Fall Highball Up 4014🔥🚂🚃🚃🚃🚃

[NGH]

Gorgeous machine. Any chance we'll see a visit to the Pacific Northwest in the future?

[OfficialSEICK]

Those facts are as big as UP #4014 himself. I'm glad UP decided to bring #4014 back to be a part of their heritage fleet.

[jimmybondo]

My proudest moment is the time big boy pushed a freight train up a mountain while pulling her current load

[Arkay]

I'm all for 4014, but he isn't the biggest. 4014 is probably the biggest surviving steam locomotive but not the biggest ever built, the PRR S1 was 8 feet longer.

[jaykatana]

No horsepower? No tractive effort? No maximum allowable tonnage? No top speed? It's ok not to brag (wouldn't want to embarrass the diesels and other class one's that won't run steam), be humble UP lol

[Neb_fallout]

OK I like big boy but Jesus The fact that union pacific doesn’t know that it’s not the biggest ever built because prr s1

[mratsfrailfan]

Not the biggest ever built in many regards

[qwiklok]

absolutely AWFUL UNESSARY MUSIC. Ruins the entire video. 🎉