Why Union Pacific Built a Locomotive Everyone Said Was Impossible
109K views · Feb 25, 2026 · Autos & Vehicles
Comments · 60
@maxdude4645 · 5 months ago
Lots of AI errors. Disclaimer: "Altered or synthetic content <br>Sound or visuals were significantly edited or digitally generated."
16
@michaelbrooks1458 · 5 months ago
I love the time 4014 had to push a stalled train to keep moving
4
@weshohler7601 · 3 months ago
I live in Green River Wyoming and it is always a real joy to see Big Boy 4014 role into town as it did many years ago. The sound of the steam whistle ,the sound that the locomotive makes, the smoke coming out of the stack, is really something special, and the feeling is you get is hard to describe. Thanks to all involved that preserved this special locomotive 🚂 <br>Roll on!
2
@mrknotthall · 4 months ago
“Youn”assisted? You mean “unassisted”? I hate AI.
6
@colinvoss8484 · 5 months ago
My grandpa was an engineer on the big boy and I know a engineer that operates them today.
3
@williambeglin8641 · 5 months ago
My father worked as a mail guard on that stretch of rail in the early 50s from Ogden to Helper 😮
3
@paulpinball9952 · 6 months ago
(<a href="https://www.youtube.com/watch?v=dnIAB_yo9Nk&t=145">2:25</a>) "yoon-assisted"? You've come a long way, A.I.
6
@Jack_Callcott · 4 months ago
What a great story! American engineers are so talented to build the Big Boy, and then bring it back to life after 60 years, and make it run on fuel-oil. That's a great idea. It makes me wonder why they didn't think of running it on fuel oil in the first place. It's a beautiful machine — by far the best looking steam locomotive you could ever see. I'm so glad to see these dedicated people did all this wonderful work to make it run again. :hand-orange-covering-eyes:
1
@criticalthinkerAF · 5 months ago
I have always lived in the area these were needed. I remember seeing one as a young child. Then when in my 70's, 4014 stopped by and I got a closer look!
7
@clarkpitts5393 · 5 months ago
I'm taking my grandson to see Big Boy in K.C. this Summer. Can't wait!
2
@404-UsernameNotFound · 5 months ago
<a href="https://www.youtube.com/watch?v=dnIAB_yo9Nk&t=1107">18:27</a> i love that the diesel engine 4014 pulled it into Cheyenne.
2
@GeorgeSheller · 5 months ago
Incredible and wonderful. Thanks to Union Pacific for realizing the importance of the great machine.
2
Up next

The UP 9000: The Unconventional Locomotive That Somehow Worked
Locomotive Geek · 15K views

The Forgotten Locomotive More Powerful Than the Big Boy! | Why the Big Boy Stole the Spotlight?
Wander Rails · 66K views

The Spinning Railroad Machine That Ate Snowdrifts Higher Than a Locomotive — The Rotary Snowplow
Hidden Works · 74 views

Inside an American Caboose: How Railroad Crews Ate, Slept and Worked
Past Time Travels and The America We Remember · 13K views

The Train That Poisoned Its Own Crew — Union Pacific's Aluminum Streamliner, 1934
Cab Forward · 200K views

How Do You Pull a 3 Mile Train Without Ripping It in Half?
S Smith and Train Curious · 2.9K views

The 5 Most INDESTRUCTIBLE Locomotives Ever Built
Steel on Rails · 12K views

Why Normal Trains Can't Carry These Massive Weights
Locomotive Geek · 46K views

Why There's a Locomotive in the Middle of the Train
Steel on Rails · 104K views

Why Norfolk & Western 'Ignored' the Diesel Revolution for 10 Extra Years
Steel on Rails · 17K views

Why the PRR Built the T1 After Testing a 4-8-4 (The Decision That Made No Sense)
Iron Tracks · 42 views

The Boeing 377 Stratocruiser Was Luxurious, But Dangerous
Vintage Wings · 532K views

UP Steam Update: Converting Big Boy No. 4014 to Oil
Union Pacific · 481K views

The BIGGEST AMERICAN LOCOMOTIVES Ever Built — and YOU DIDN’T EVEN KNOW They Existed!
Extreme Machines · 230K views

The Rise and Fall of ALCO (American Locomotive Company), the Steam Titan That Lost the Diesel War
Forgotten Engines and Backshift Garage · 39K views

Why Only 8 Union Pacific Big Boy Locomotives Survived
Iron & Legacy · 433 views

25 "Illegal" Shortcuts Old Railroad Men Used That Kept America's Trains Running
The Working Man's Code and Forgotten American Survival · 59K views

The Real Reason Big Boy 4014 Was Abandoned For Decades
Locomotive Geek · 101K views

Big Boy 4014: How They Brought a Dead Giant Back to the Living
The Locomotive Historian · 54K views

Why Everyone Is Tracking Big Boy 4014 Again — And What Makes It Impossible to Replace
Rail Secrets Unlocked · 122 views

Best Engine Ever…🔥 Rare Old Engines Starting Up Sound That Will Blow Your Ears
ProtonTech · 542K views

They Called It Too Weak — Then It Outpulled 10 Diesels
The Rail Story · 9.8K views

MOST SCARY TRAIN - Union Pacific BIG BOY
Top Fives · 341K views

The Locomotive So Powerful It Tore Its Own Trains Apart
Locomotive Geek · 25K views

Why Locomotives Sometimes Face Backwards
Steel on Rails · 6.3K views

Big Boy 4014: How They Brought a Dead Giant Back to Life
Mega Machines History · 706K views