For the most part UP's double diesel era was very successful. The DD35, DD40 and U50 had successful careers while the U50C and C855 had the shortest life of any UP diesel.

I did a tour of duty on USS BARBOUR COUNTY (LST-1195).  The BC was powered by six Alco V-16s, three on each shaft.  I'm not sure if all of the Newport class were Alco-powered. I was the Ops Officer on the BC, not the engineer officer, but to my knowledge, the engines had few problems.

The pictore at 2:29 that says it's an Alco 251C is actually an English Electric 16CSVT probably out of a British Rail class 50 (also built by EE)

Great video! Had a question, did you have a Fairbanks-Morse video that you took down? Could have sworn I watched it. Thanks!

What are you on? The sand boxes are mounted outside of the walkways, every single picture shows that, there's plenty of space to walk

Some of the most interesting programs . I find that three eras of railroads of the American 440 of the V and T , the U P 4664 and 4884 , and finally the ATSF F 7 War Bonnets as the most beautiful engines ever .

I love the twin engine monsters! In real life, they had their issues and I appreciate learning what they were. Love the rugged look.

But, on my HO empire, they would be pulled out of ‘storage’, sold to Amtrak and updated to pull ‘new AutoTrain service from Chicago to Florida…Phase V paint scheme!😉

How about taking these videos down and getting a human to read them. The automated plagiarism is fucking annoying.

7:20 Might want to check your image sources; that’s not a V16 engine from the Century C855

carbitty 😄 excellent video on such a fascinating machine

I believe modern diesel locomotives set up for narrow gauge operation in places like south America have four trucks and use spanner bolsters.

It's pronounced CAR BODY not car buddy

You should really do a Shay video

You can always count on management to come up with impossible things and they always seem to find a manufacturer to try and make those impossible things a reality. I have 33 years in the forging industry so I know the pain.😂

Yes, it was a heavy job to walk through the pressurized body on the loco. They finally turned to deep sea diving techniques, and the fireman and engineer would have to put on a specially built pressurized suit, much like what the astro-nots wear. The suits were made from fiberglass, carbon, and window screen, all self contained with an air tank and a small porta potty. The suits were also equipped with a safety harness in case the person wearing it fell into the 200 tons of sand the loco carried. 🙄

WELFARE BANKS MORRIS WAS BUILDING DIESEL ENGINES THE POWERED THE US SUBMARINE FLEET FROM 1938 TO THE PRESENT THEIR ENGINES ARE STILL USED AS BACKUP FOR NUCLEAR POWER

No Designer should be allowed to design a vehicle that doesn't understand how the vehicle operates in the real world or has ever had to repair a vehicle.  PERIOD!!

The voice is hard to hear. Sounds muffled

UP management is to blame. They wanted something that just wasn't practical at the time.

Plus, how is having two diesels, two generators and related hardware stuffed into one carbody any advantage over two single-diesel units?

Interesting experiment.  However I wonder if ALCO had tried for
something more modest they might have fared better and grabbed a bigger share of the market.  

Does ~5000 up from a single unit that is not reliable really get you anything that you won't get with two 2500 hp locomotives that do not break nearly as often?   Would a 3500 hp locomotive have been a better goal?