The Big Boy didnt die... It was just Reincarnated into a badass diesel locomotive

@steelcityrailfan4808

3 жыл бұрын

Lol

@Railfandepot

3 жыл бұрын

Union Pacific excelled in badass locomotives. -Tim

@cjuuljohnston

3 жыл бұрын

Agreed 👍

@juniorjohnson9509

3 жыл бұрын

Yea, but the Big Boy's were way more gorgeous and fascinating!

@JackCarsonsRailroadVideos

2 жыл бұрын

Big Boy: "I lived bitch 😎"

I got a rare chance as a locomotive engineer to operate the UP's 6936 at the Soo Line/Canadian Pacific's Bensenville Yard. That was back in May of 2010 when the Union Pacific DDA40X was brought into the yard in preparation for display at the "Railroad Daze" annual event in the nearby Chicago suburb of Franklin Park, IL. Moved it only about 100 ft. on a service track, but hey, I can at least say I ran "the largest, most powerful diesel locomotive ever built!" Got the DVD, "Union Pacific 6900s" by Pentrex. Highly recommend it!

@Railfandepot

3 жыл бұрын

That is *truly* an amazing opportunity - and memory. Thanks for sharing! -DeAnn

@alcopower5710

3 жыл бұрын

Lucky

@BossSpringsteen69

2 жыл бұрын

The good ole days in Bensenville. Right across the street from 710 East Green Street in Bensenville near O Hare. LOL Never thought id use that business till, excessive road salt from a salt bunker placed next to a company roadway employees drove on prematurely killed the underbody of my car.

@theodorethompson9032

Жыл бұрын

I’ve been doing some electrical work on the 6936. Today I’m casing a AC ground on engine #1…

@WAL_DC-6B

Жыл бұрын

@@theodorethompson9032 Hope all turns out well!

Loved watching these roar past my house in western nebraska when i was a kid.

What a privilege to be an engineer of the 6900!

@Railfandepot

3 жыл бұрын

Agreed! :-) -DeAnn

It took awhile, but at the end of the "Horsepower race" U.P. finally figured out, when you put one DDa40x in the shop, you were putting the equivalent of two GP40's off line. They just couldn't stomach that for long.

I'm very privileged to have gotten three of these beasts in o scale! My most favorites ever!

@Railfandepot

Жыл бұрын

I love that! Also great, but hard to find, would be a DD35 B-unit. Those massive cabless units look sooooo good! Thanks for watching! -DeAnn

@elyreyes3358

Жыл бұрын

Si pero me gusta mucho el estómago y no se le vaya a hacer la tarea ❤

6:51 Thats one awesome horn

I lived near Cajon Pass in the 70's and remember seeing them there. Also have seen the one at Portola many times.

@Railfandepot

3 жыл бұрын

These are just massive machines. I wish I had seen one on the rails hauling freight. Thanks for your note. -DeAnn

@wildcoyote34

3 жыл бұрын

@@Railfandepot they are amazing to see ,, I have seen 6936 many times over the years ,, i was sad to hear that it's been mothballed for whatever reason I'm 46 now and am happy to say that i did get to see the centennials in operation ,,i have an 8mm movie my grandfather made in 1981 when i was just 7 ,,it shows 6900 /6936 and i think 6924 at the head of a freight train coming into Council Bluffs iowa from omaha,,and i remember more than once being at the local park and watching them go by

The Centennials were used on the hottest trains: Super Van, Van, Overland Mail North, West and East (OMN, OMW, OME) ARRO (Auto Rail Road Overland), Fast Ford, SSS (South Seattle Special) just to name a few. I saw them in Stockton just after the UP took over WP. Ironically, RG Flannery was WP President. Thank you for posting.

@Railfandepot

3 жыл бұрын

Yes, the big DDs... from the DD35 to the DDA40X were used anytime big power was needed. Thank you for watching! -DeAnn

"UP was soon to be the owner of the most powerful steam and diesel locos..." How about the Turbines? Thx!

@Railfandepot

3 жыл бұрын

Of course UP was the owner of the most powerful... steam, diesel *and* turbine locomotives, but those turbines were so unique that I guess it almost goes without saying. We have another video on the turbines. I've included a link . -Tim kzread.info/dash/bejne/paSiyceepLTMgqw.html

@tsitracommunications2884

3 жыл бұрын

Truly the titan of trains

@michaelosgood9876

2 жыл бұрын

Yea! Nothing could match the 1-30s for sheer magnificence.

UP always had the best locomotive, plus I stood in the cold for 2 hours waiting for ns 29z finally got it with a badass k5lla and a sd70ace

@Railfandepot

3 жыл бұрын

In the cold for 2 hours? You are committed to getting that good shot!! Thanks for watching. -DeAnn

This video is amazing, love the history as well, most of all I love the rails and everything about them .

@Railfandepot

3 жыл бұрын

We have another one coming out on the DDA40X - with more info on how it all works. Fascinating stuff! Thanks for watching! -DeAnn

Those huge diesels were GM/EMD V-16 two-cycle diesels, somewhere north of 10,654 cubic inches. Internal parts were so large and heavy that engine speeds were limited to around 950 rpm. The Centennials were beyond impressive and awe-inspiring.

Gees DeAnn what a great vid with one of my favorite beverages ... Lol ...

@Railfandepot

3 жыл бұрын

We aim to please! :-) -DeAnn

Oh, this video is for DDA40XBruce! 🚂🚞🚞🚞🚞

Watching the footage of someone chasing those two centennials all I thought about was how massive video cameras were in the 70’s and how hard that was. Also how they sounded different in tandem than I expected

@Railfandepot

2 жыл бұрын

Very massive cameras! Tim did some professional shooting in the 1980s and he says pro camera gear came in 2 pieces a that time, the camera, the recorder AND a battery belt. Yikes! -DeAnn

It would be so awesome to see these behemoths still running the rails.

@Railfandepot

3 жыл бұрын

One of them still runs for the UP on special occasions! So,it is still possible! -DeAnn

Click.. click..cheers That 1 big loco oh I really enjoyed the turbine's too

@Railfandepot

3 жыл бұрын

Thanks for watching and for the vote of confidence! -DeAnn

Thank you for producing this video. So glad I found it, seems to hold a special interest, but I don't know why. :-)

@Railfandepot

2 жыл бұрын

Bruce, I can guess from your KZread handle that you may have a special interest in these behemoths! I *really* appreciate the kind words. We've had some rather nasty comments lately, so you are my new favorite person. -DeAnn

@DDA40Xman

2 жыл бұрын

@@Railfandepot Thank you. Probably buy the video if it isn't in my library already. Have bought some videos from y'all. Come visit me sometime, I'm with the Virtual Railfan channel group. I'm usually at the Flagstaff camera chat or Belen NM camera chat.

I saw a DD40X on display at the UP yard in Little Rock, AR. Pretty impressive with 8 wheel trucks. So I bough the MTH O-Scale model version. Ha!

I still can't believe a 747 can fly lol. What a great old video.

@Railfandepot

Жыл бұрын

Wait, a 747 can fly? Next you'll be telling me steam can make big machines move on their own! 😉 Thank you for watching! -DeAnn

I JUST LOVE ❤ THOSE KINDA OF TRAIN 🚆

Thank you guys

@Railfandepot

Жыл бұрын

Oh my, thank *YOU* for watching! -DeAnn

Every video is a pleasure to watch..blessings lovely DeAnn

@Railfandepot

3 жыл бұрын

Thank you very much, kind sir. :-) -DeAnn

It's basically an A-B unit that you can't separate. One of these is at the Frisco Railroad Museum on static display. I need to get out there and see it. I've got a model of one in HO scale. Always liked the DD35 and DD40.

@Railfandepot

2 жыл бұрын

I am not sure why, but I always like the look of the DD35 B units! -DeAnn

Good morning lovely DeAnn. Once again, you've brighten up my morning with this enlightening video about locomotives and more importantly, seeing your beautiful face and smile. Would love to sit and have coffee with you someday. Please keep the vids coming

@Railfandepot

3 жыл бұрын

I will certainly keep up my Sunday morning appointment. :-) Thank you for watching! -DeAnn

My favorite diesel locomotive always and ever

@Railfandepot

3 жыл бұрын

It is a monster! The good kind. :-) Thanks for watching! -DeAnn

Love to see all those locomotives on line

@Railfandepot

2 жыл бұрын

Thanks for watching! -DeAnn

I LIKE BIG DIESELS, I CAN NOT LIE! LOVE TO SEE "VIDEOS" OF THEM FLYING BY! GREAT VIDEO & COFFEE!

@Railfandepot

3 жыл бұрын

Excellent rhyming my good man. Thank you for watching! -DeAnn

Those were some impressive locomotives,great video.

@Railfandepot

3 жыл бұрын

Thank you for watching! And yes, the DDA40X is truly an impressive machine. -DeAnn

I ALWAYS LOVE ❤ TRAINS 🚆 EVER SINCE I WAS A LITTLE BOY

Very interesting history of some serious UP motive power! Though Monday morning thanks to work yesterday. Thanks for posting.

@Railfandepot

3 жыл бұрын

Maybe we should call it... *beverage and trains anytime*? :-) Thanks for watching! -DeAnn

@insomniac2233

3 жыл бұрын

@@Railfandepot idk my Sunday mornings are sacred to me. Couldn’t refuse overtime. Perhaps something on the Milwaukee Road. Tragic that all of that engineeering out west was never used again. Thanks for your posts!

We spent a day a Bailey yard a few years ago a great experience ,also chased trains across Wyoming staying at Medicine Bow , UP puts on a great show !

@Railfandepot

Жыл бұрын

"The Great Chase". That would be a great memory! Thank you for watching! -DeAnn

I am new to this page. This awesome thanks again. I am now a subscriber ☺️

Very informative! I love the UP railroad!

Great history and interesting video on the workings of the locomotive. We have nothing like this in the UK. Can't wait to get back to the US with the camera. I will be looking to visit the feather river

Like The Videos and the DDAX40X

Great video thank you

@Railfandepot

2 жыл бұрын

Glad you enjoyed it. Thanks for watching, and for the positive comment! -DeAnn

I don't do facebook, and don't do social media.. I do answer questions on Quora.. Sometimes (on KZread) I sit and watch the trains traveling through different states, it's relaxing..

Пожиратель соляры ) Клёвый лок, нравится. One of my favourite american locomotives. Like it! Greatings from Russia!

6901 rests in my hometown Pocatello Idaho

Love this a lot learnt many things about world's most powerful diesel locomotive

@Railfandepot

2 жыл бұрын

Thanks for watching! It is a great story. 😀 -DeAnn

Awesome job on your show 🙂👍☕

@Railfandepot

3 жыл бұрын

Thank you for the kind words. We do work at it! :-) -DeAnn

The DDA40X was a very impressive diesel model, the UP had a very impressive roster of large steam and diesel locomotives.

@Railfandepot

2 жыл бұрын

Oh yes, until diesel standardization, the UP kept pushing the envelope on higher and higher horsepower/tractive effort locomotives. -DeAnn

Dee Ann the Centennial was one of the two most impressive locomotives ever built. The other was the Big Boy. Very enjoyable. locomotive ever built.

@Railfandepot

2 жыл бұрын

And both locomotives were Union Pacific specific! Thanks for watching. -DeAnn

6:51 I like that horn

@Railfandepot

2 жыл бұрын

That horn befits the locomotive it is attached to! Thanks for watching! -DeAnn

Cool thanks guys

@Railfandepot

3 жыл бұрын

Thanks for watching! And for the vote of confidence. :-) -DeAnn

I just subscribed to your channel awesome video's i have loved train for 55 years

@Railfandepot

2 жыл бұрын

Thank you much for subbing. We have more videos coming! -DeAnn

Magnificent machines!!!

I love this video it was great but I do believe it weighs as much as 1 747 not 5 lol... love how exited these old railfans used to get.

@Railfandepot

Жыл бұрын

You may be right. 😂😮💗 All I know is I am not going to try to pick up any of them. Thank you for watching! -DeAnn

I ❤ trains

love this!

@Railfandepot

2 жыл бұрын

Another big horsepower monster from Union Pacific. What's not to love, right? 😀 -DeAnn

Nice, I run 1 on my HO Layout!! great to see the history

@Railfandepot

3 жыл бұрын

What is the minimum radius these look good on? -Tim

@chrisjones4423

3 жыл бұрын

@@Railfandepot 30, anything smaller doesn't look right, I have 1 34 degree on most of the outside line with 1 30 bend. l really like the big bends, I also super elevate with styrene on the outside rail!

@Railfandepot

3 жыл бұрын

@@chrisjones4423 Thanks for that. I know any big radius curves are tough to fit onto a layout. That is why i asked. -Tim

Love this vid

@Railfandepot

Жыл бұрын

Thank you so much, and thank you for watching! -DeAnn

Wow x 2! The Centennials are amazing! They are the Iowa Class locomotives!

at 7:50 mark, these locom. engines are REALLY working hard!

That is one long diesel-electric locomotives

@Railfandepot

2 жыл бұрын

True story! -DeAnn

those Double Ds are impressive!

@Railfandepot

2 жыл бұрын

Union Pacific, and I, thank you. 😉 Thanks for watching! -DeAnn

Most of the footage was filmed around Laramie Wy. South, North, and East.

@Railfandepot

2 жыл бұрын

Yes, I believe most of this was shot in the Sherman Hill area. So, yep you are right on the money. -DeAnn

I like how the engginering staff build the locomotive that days. That's literally "two in one" for more power.

6:44 great approach

@Railfandepot

2 жыл бұрын

That's a lot of power pulling that train! Thanks for watching. -DeAnn

I liked those 2 cycle GM EMD engines. I saw one of these twin engine rigs in Main on a side track just vandalized abandoned and rotting. I guess the new 4 cycle AC traction motors are more efficient.

I like train videos on KZread 👍

hi i love trains i got a scanner to pick them up on my bc 125 at scanner tom

Check out the Railfan at 3:01!

@Railfandepot

3 жыл бұрын

I wish that had been me! Except, then I'd be older than I am....hmmm...that *is* a downside! :-) -DeAnn

Do you think the Union Pacific will ever restore one centennial locomotive and put it into service? I'm not talking about the recent donation train, but like one of their other trains that are on a static display.

@Railfandepot

Жыл бұрын

My best *guess* is no...but remember there are several museums that have these beasts and it is quite likely that one of these (WP Museum, Illinois Railway Museum, etc) could get that done. -DeAnn.

Enjoy the video

@elladowling5464

3 жыл бұрын

Hello! What are some of your favorite locomotives?

@Railfandepot

3 жыл бұрын

Thanks for watching! :-) -DeAnn

@railfanlondonwhaley9521

3 жыл бұрын

You’re welcome

Railfan Depot, "The Kidsongs Television Show of the 21st Century!"

The DD40X is really the first "wide cab" and not SD60M #6085. Many rail publications keep claiming the 6085 as the first and that's ridiculous. Also, the Canadians started making the wide cab fairly standard during the 70s.

@Railfandepot

3 жыл бұрын

The Canadian roads began it all, the DDA40X is similar, but does not have the same structural safety features. Maybe that is why others claim the SD60M? No matter what - the DDA40X cab is certainly wider than previous US cab units! -Tim

@FFred-us9tw

2 жыл бұрын

“Wide cab” didn’t simply mean wide nose. The DDA40X shared a cab with the F45. It simply didn’t have a full cowl. But it’s not a wide body cab by definition at all. The 6085 had a true wide body cab. The DDA40X cab did not and it’s way more different than you think. The 6085 had the Desktop control stand, higher cab floor, totally different side window layout, different seating arrangement, completely different nose interior and front door, central HVAC and most importantly, the improved collision protection in place. There is no comparison. Two totally different cabs.

@FFred-us9tw

2 жыл бұрын

@@Railfandepot the DDA40X did not have a “wider cab than any previous units”. It uses the same cab as the FP45 which came out in 1967, two years before the first DDA40X. The term “wide body cab” is thrown around way too much. A true wide body cab is not like these early wide NOSE cabs. There is a lot more to what makes a true wide body cab then the exterior appearance. And as information, a true wide body cab or a wide nose cab like on these are actually not any wider than a conventional cab.The term comes from the airlines about being more spacious. But it’s not really “wider”

Congratulations on your you tube channel!! I am from Spain and I love american trains and locomotives. Good job!

@Railfandepot

3 жыл бұрын

Thank you for watching! It's great to have you here :-) -DeAnn

6:00 "Beautiful" is far not enough to describe it, anyone have better words?

@Railfandepot

3 жыл бұрын

Hmmmm... beautiful *and* badass as another commenter noted? -DeAnn

Thanks for the nice video 😌😌😌😉😉😉I'm not sure I would have sent that eng to CA I think it should have gone to the mid west.

@Railfandepot

2 жыл бұрын

There is one here in the midwest. See link below. It's at the Illinois Railway Museum. Thanks for watching. -DeAnn www.flickr.com/photos/train-kid-1996/13003750375/

I have a copy of this video from the 90s

@Railfandepot

Жыл бұрын

It's a good video...and a good locomotive! -DeAnn

cool

The Centennials are awesome but I always felt the U50s were very underrated.

@Railfandepot

3 жыл бұрын

Not everyone likes to looks of the U50s, but I do. They remind me of a broad shouldered bulldog. -Tim

@dennispersson9466

2 жыл бұрын

To me, it looked like the U50s, and Alco 855s designers smacked the cabs into a wall, although the U50 could have had a Shark mouth painted on it. Lol.

If there was a tug-o-war or pulling contest between the Big Boy and the Centennial, who would win? That's an interesting match-up, isn't it?

@FFred-us9tw

Жыл бұрын

Well, The DDA40X is 6,600 HP with 113,000 lbf starting Tractive Effort. The 4014 is around 6,200 (drawbar HP) with around 136,000 lbf Tractive Effort. So Big Boy should win it with ease.

Man I wish the DDA40X never went for scrap

@Railfandepot

3 жыл бұрын

One of these beasts still runs! It may only be for special occasions, but it still runs every now and then. -Tim

@theraildudefrank7697

3 жыл бұрын

@@Railfandepot wow

What ever happened to the DDA 40? I've heard that they have two motors in them which It can easily pull over a 100 cars using one locomotive. I had friends who had the HO scale model version of it and they tell me that it can pull over a 100 cars at once on the layout without any problems. However it requires a wider radius curve than a normal size locomotive

@DFWRailVideos

3 жыл бұрын

The DDA40X's were mostly preserved, 13 of them. The rest were either wrecked, scrapped or used as part scavengers for other DDA40X's still around.

@Railfandepot

3 жыл бұрын

The prototype, as outlined in the video, still has one operating and many preserved in museums. As for the model, I don't believe the old Athearn "Blue Box" DD40 is being produced. It was not an accurate model. Athearn Genesis does has an accurate DDA40X. -Tim

@dennispersson9466

2 жыл бұрын

@@Railfandepot I think the Diesel Spotters Guide, or one of similar info. said the Athearn DD40, was the prototype with the Standard Cab, and the AX, had the Wide nose, and better electronic controls, so the wide cab, was the only version, mass produced.

Good old reliable General motors. 16 cylinder 645 E3 series diesel engines.

@Railfandepot

Жыл бұрын

It's hard to believe there is no more GM EMD! Thanks for watching. -DeAnn

I AM ALL BOARD DEANN

@Railfandepot

Жыл бұрын

😀😀😀 -DeAnn

How many of the centennial's are left?? And does Union Pacific still use them

@09JDCTrainMan

2 жыл бұрын

13 remain, and only one is in use by UP, kinda. 6936 has been stored for 5 years now. Its last use was when it helped test 844 in 2016.

How does the power of this compare with the Bigboy 4014?

@FFred-us9tw

Жыл бұрын

DDA40X is 6,600 HP with 113,000 lbf starting Tractive Effort. The 4014 is around 6,200 (drawbar HP) with around 136,000 lbf Tractive Effort.

Hasn’t Union Pacific been around for 130years and hasn’t merged?

@Railfandepot

3 жыл бұрын

More than 130 years... They celebrated 150 years of transcontinental railroading in 2019, and were incorporated before that golden spike was hammered down in 1869! And yes, they've done a lot of buying of other railroads, but never have they been sold. -DeAnn

@therobloxstormchasers9304

3 жыл бұрын

@@Railfandepot wow

Please update your format to wide screen and at least 1080p. Or...?

@Railfandepot

3 жыл бұрын

Hey Bruce, DeAnn asked me to reply. While we do have some footage available in 1080, and more at least in widescreen, a lot of what we show is vintage stuff - stuff only available on vintage formats. So, as much as I'd like to have 1080 HD Wide on the Centennials, we won't ever have it from when they were running. BUt, we do have more 1080 coming! -Tim

3:35. Minor mistake. Anyone with general knowledge knows the bigboys are number 3 on the list of most powerful steam engines.

@Railfandepot

2 жыл бұрын

It depends on what measurement is used. Horsepower? PRR had several steam locomotives with higher horsepower, and of course the C&O Allegheny too. Big Boys were not the highest tractive effort locomotives either, though they easily beat out the Allegheny on this metric. For the combination of speed, pulling power and horsepower, Big Boy puts together a complete package. So, depending on what measurement is used, the Big Boy locomotives rise and fall on that particular list. For instance the Virginian Triplex (2-8-8-8-4) had a very high tractive effort - but could only run at 10 to 15 MPH. I'll quibble with one point in your comment, I doubt anyone with "general knowledge" would know where Big Boy falls on the various metrics. Thank you for watching. -Tim

Will the 6900 ever be beaten?

@Railfandepot

3 жыл бұрын

I doubt it, although clearly I shouldn't say never. Since the GE AC6000CW hit 6,000 HP, it seems that GE and EMD have backed off the HP race. Although the GEVO-16 units are rated at 6,200 HP... still shy of the 6,600 HP of the DDA40X. -Tim

DeAnn, has Union Pacific ever invited you to run one to these? Oh, the smell of diesel smoke in the morning. 8:45 "Control, we just had a bird strike! Thank God there's a river nearby." If you want to take a ride in a passenger car pulled by a DDA40X. Union Pacific will accommodate you and your friends. But, you will have to pay for the fuel."

@Railfandepot

3 жыл бұрын

I'd love to ride in that cab...I'm pretty sure I don't have the cash for fuel. Certainly not a full tank! :-) Thanks for watching! -DeAnn

@outlet6989

3 жыл бұрын

@@Railfandepot But, ALL your friends would just love to go with you, but will not help you with the fuel cost. Sorry about that.

@Railfandepot

3 жыл бұрын

@@outlet6989 Story of my life. :-) -DeAnn

👍🤗

what type of horn does the DDA40X have ?

@Railfandepot

3 жыл бұрын

The DDA40X series were originally fitted with 5 chime Leslie horns, but as often happens some were changed out over the years. Thanks for watching. -Tim

Gas turbine locomotive : Grrr!!

I have a question. I live in California, are there any preserved dd40's in cali? Also, what happened to 6936 it was up and running like a year and a half ago.

@Railfandepot

3 жыл бұрын

Sorry for the delay in replying. Yes, there is a DDA40X in Cali. It's at the Western Pacific Railroad Museum in Portola. See the link below. As for 6936, it is kept in running condition, available for company use, in Cheyenne. -Tim www.wplives.org/locomotivepages/up6946.html

@SouthernCaliforniaRailfan

3 жыл бұрын

@@Railfandepot thanks for the info

I never seen inside one

Why so much smoke from these engines??

@Railfandepot

3 жыл бұрын

They may be burning off some oil, though it's really a mixture of oil burnoff from an engine that is not running clean and exhaust. Kind of like when you see a semi-truck on the road. -Tim

So why were these locomotives discontinued? Why do they not make these anymore?

@FFred-us9tw

Жыл бұрын

Outdated technology. Modern diesel electric locomotives can outpull these and do it with much better efficiency and less maintenance.

@WesternSouthDakotaRailfan2006

11 ай бұрын

Outdated technology but some of them got preserved

Did they number them in the 6900's because they came on the scene in 1969?

@FFred-us9tw

2 жыл бұрын

Yes. That's how they got the nickname "Centennial" as well.

Sad that the Canadian major roads - CN or CP - never tried replicating UP’s specifications, by licensing if required, and getting power like that going here. I love my country though sometimes it feels like we’re the end of the donkey’s tail when it comes to innovation.

Why UP retired them?

To be completely honest the DD40AX Is basically a stretched out SD70M in non railroad terms

@Railfandepot

2 жыл бұрын

Stretched and doubled! Thanks for watching. -DeAnn

@FFred-us9tw

2 жыл бұрын

No it’s not and that doesn’t even make any sense. They share no similarities aside from the builder. The DD440X uses DC traction, two 645 engines with conventional control and 4 axle trucks. The SD70M is AC traction, uses a single 710 engine with EMDEC control and has 3 axle trucks. And that’s just the basics.

@RailsAndContrails

2 жыл бұрын

@@FFred-us9tw was just a joke calm down

@FFred-us9tw

2 жыл бұрын

@@RailsAndContrails I’m perfectly calm. But if you post things that make no sense on a public forum you should expect that people may call you on it.

@RailsAndContrails

2 жыл бұрын

@@FFred-us9tw I know I was not thinking when I posted this I just wanted to comment somthing

So why did UP not keep going with this high horsepower loco design??

@Railfandepot

3 жыл бұрын

Economics won out... they were the only railroad putting time and money into the high horsepower chase - and into these diesel locomotives. Eventually, as GE and EMD designed better and more powerful, and more flexible, locomotives, it was cheaper for UP to go with the rest of the industry. As for why these were retired, each unit ran more than 2-million miles - so they were successful, but they were also expensive to maintain. -Tim

@AVeryRandomPerson

3 жыл бұрын

Another reason was revealed with the SD90MACs. If a 6000hp unit fails, a train loses a lot more hp than if a 2000hp SD40-2 fails.

@tulyar1043

3 жыл бұрын

@@AVeryRandomPerson Don't forget, more importantly, the train also loses those six axles of dynamic breaking which are equivalent to nine axles of dynamic braking of a C44-9C.

Ironic that it wound up in Portola. U.P. was rich enough to make a mistake. W.P. was not. They only invested in GP40, GP40-2's. Those GP40's ran revenue miles on the former MoP, W.P., Katy, and everywhere else. The Big Jack's didn't.