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File: 1581476409727.jpg–(58.28KB, 600x450, 51F27926-E44D-4839-A235-F1BEE67DC81C.jpeg)
>class 40 thread
¨ No.1313
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>8 axles on a British loco

>of all things


By the way, offtopically, do you guys like the livery on this TEM7A?
¨ No.1331
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Those 8 axles were needed to hold up the considerable weight of the 16SVT prime mover.
It's interesting to compare the Class 40 with the later Class 50, which used an intercooled version of the same lump. More power, less weight and on a Co-Co chassis.
Similarly compare the "Peaks" (1Co-Co1`) with the Class 47 (Co-Co). They again used the same prime mover (a 12-cylinder Sulzer 12LDA28), but the Class 47 was lighter.
¨ No.1336
The livery’s ok.
¨ No.1337
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Man, Russian railfans for some reason are just drooling over black liveries. Europeans like them too as far as I know.

Yes I noticed these are runners. Still looks kinda wonky that a Co-Co loco made in the 50s would still need conventional runners. But good thing they managed to decrease the weight in the future version. Which reminds me of a much more cheeky, much more distinctly Soviet use of runners...

Some might remember me ranting on it at some point. Cue 2TE126, 2-unit 20-axle diesel locomotive with two V16 320/320 mm type 4D56 diesels making a combined 16000 (SIXTEEN THOUSAND) horsepower. Yes, twenty axles. The axle formula of each unit is 1+Bo+Bo-Bo+Bo+1, the diesel was so massive that with 8 axles per unit the locomotive would have exceeded maximum axle load of 25 tons, so they had to add runners. But they weren't ordinary runners, by the finalized project these were variable load runners, which through a system of pneumatic cylinders should have been able to transfer part of their load to the motorized axles increasing the axle load to 27 tf on low speeds, which is still safe for the tracks but noticeably increases maximum tractive effort (in theory up to 10 tf of boost) exactly when you need it the most.
The prototype built was actually tested with unboosted version of the 4D56 making 6000 HP (if finished successfully there were plans to introduce a V12 making 6000 HP on smaller locomotives such as 2TE136). But...
It all was just before the collapse of USSR which almost literally shattered our diesel locomotive engineering and set it decades back. [thank you, Reagan] Just think of this. If this project would have been completed...

This is an absolute, unchallenged, pinnacle of diesel locomotive engineering. It's over 30 years since its creation yet nothing can even remotely rival it, there is nothing even similar to this, not even on paper. Imagine if only this project survived... I guess now I know how it feels to loose something like an Apollo program. Something so ancient yet so advanced.
¨ No.1338
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AAAAND I accidentally took yet another get. But oh don't worry, 2TE126 sure is some L33T loco...
¨ No.1339
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If there's one thing I love about Russian trains, it's that you guys put ribs down the side of everything. reminds me very much of Milwaukee Road awesomeness.
¨ No.1340
It's nice to know that we weren't the only ones that got fucked by Reagan.
¨ No.1343
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Yay trickle down economics!!
¨ No.1350
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Just a 'soft spot'
Crazy pantographs (do not determine direction)
Also, электри́чка
¨ No.1353
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More crazy is the fact that this pic was made some days ago. Moscow railway, and especially its commuter fleet, is so enormous that after all these years of steady rolling stock upgrade they still got a few of these rust buckets rolling around. Granted, if CPPK weren't such dickheads (i. e. a private entity running a major branch of one of the biggest municipal transit systems on the continent - and no, I am not a complete and utter leftie but in this situation it is applicable) the whole fleet of multiple hundreds of EMUs would have been not older than a maximum of, say, 15 years. But I digress.

BTW if you wanna hear more about Moscow railway's suburban rolling stock click here: >>1120

What's so crazy about it anyways? Just a normal transitional design between dem old funky looking "cube" pantographs to the modern single-arm ones, just I assume by that time the manufacturing technology was not able to provide enough strength for a single arm so they designed a dual-arm support but still lighter and more compact than these stupid cubes (which are still plentiful on the older DC locos).

BTW as a funny bonus, heres a high-end metro rolling stock by Метровагонмаш with that kind of dual-arm pantograph literally strapped on top of it. Feel free to guess why and under which circumstances it was done.
¨ No.1354
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To be fair we don't "put them down the side of everything", it all depends on the particular manufacturing plant (not even the manufacturing entity, which there are two in Russia - TransMashHolding - TMH, also having presence in Africa and EU, - and Sinara Group) and even the particular batch of the product. And we never even did frankly, like if you look at all the older products of Kolomna works, such as TEP60, TEP70, especially the first one which was very sleek and European-looking for its time.

Right now it's mostly NEVZ here who is notorious for refusing to update their body assembling technique to hot side panel mounting - although you can understand their logic: it's additional expenses which would amount NOTHING to the actual specs or quality of the product, and nobody pays much attention to the locomotive appearance anyways. So it is responsible for all the wafer-looking electric locomotives coming to our fleet today. They tried to go with sleek sides for their flagship EP20 series >>294 but due to lack of proper mounting technique for smooth panels if you looks along the side of an EP20 you can see it all kinda wobbly and gross looking. So previous year they controversially switched it to being a regular old waffle, somehow managing to make it look even worse...
¨ No.1356
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BTW pic above is a rather unrelated RA3 rail bus, by the same Метровагонмаш as >>1353 . I guess as an example of smooth body panels done right.

As for the EP20, spoiler: the ribs as you can see didn't help with the smoothness issue at all, only adding an unnecessary and very out of place design element. As much as I adore its top-tier locomotives technically, that's just typical NEVZ for ya...
¨ No.1389
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>the whole fleet of multiple hundreds of EMUs would have been not older than a maximum of, say, 15 years.
EMUs have a useful life of at least 20-30 years tho, 40 is not uncommon if they're durable.
Switzerland has one of the best train systems in the world, yet it's not uncommon to find some older rolling stock. The EMUs like pic related were built in the late 80s and early 90s and are still commonplace. They were completely overhauled around 2009 when they were about 20 years old, as is common practice, and they're expected to last at least 20 more years after that, so until 2030 more or less. 40 years in all. Zurich also has some 40 year old trams still in service that are just going to be taken out of service around this year or next year (although they should have been retired about 2 years ago).
¨ No.1405
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Wow, this thread got derailed fast.
¨ No.1407
Because someone has to shoehorn Russian trains into damn near every thread.
¨ No.1411
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Yaknow what, while considering my potential reply to Captain Slog >>1405 I wanted to be apologetical and supportive, but with yours... fuck you, dude. Like, with capital F. Lemme get this straight.

I'm not posting here in months before making literally a couple of comments ON TOPIC (at least somewhat) only to go into read-only for another month or two, I remember way earlier, few times people expressed mild upset at the fact there haven't been new insights in Russian trains, and actually requested inputs from me. And THIS is enough to make you go full BOOHOOOOO RUSSIAN BIAS MOOOOOM DO SOMTHIN?
This board is literally two to four posts a day, threads NEVER go triple-digit, you think this site is so fucking overfilled? EVERY member who posts here, if they will go - the site will feel it. Two or more will - it will almost certainly die. I'm not threatening anyone (well certainly for you it'd be a welcome news otherwise) but now I have much better platforms to discuss trains in English, and judging by the recent experiences, less toxic too, so really nothing holds me here. Again, I'm driving a slightly different point here:

All that considered, it's not even the most ironic thing here. You don't like me filling threads with Russian bias? THEN FUCKING FILL THEM WITH ON-TOPIC CONTENT. The threads usually sit here for days without any input because nobody fucking cares, but as soon as I provide my perspective, you suddenly started to care. And it's not even off-topic, I find an aspect about the subject to comment on and expand it with my perspective - it's not "shoehorning", IT'S HOW MOST DISCUSSIONS WORK, learn to fucking live.
With how much people post there, incl. me, it would take you 3-4 posts to take over the thread back from me. And what's the best part? My "shoehorning" somehow gets more live and interesting response than the original topics you are so fiercely protecting, so maybe oh I don't know, they are more interesting to other people here, or otherwise they would be ignored in favor of the original topics, dontyathink?

P. S. Take another Russian fucking train for good measure, because clearly your meta response didn't derail things even further.
¨ No.1436
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You blatantly admitted to taking the thread off topic in the very first reply on this thread so you could ask about the paint scheme on an entirely unrelated locomotive. Therein lies the problem.

But anyway, cool story.
¨ No.1438
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And yet the NEXT answer, and exactly the one which helped finally switch the discussion to Russian trains was directly related to axle formula and rollers, while the livery was even mentioned in just literally two sentences. Don't assume you can fool anyone with a screenshot when people can just open the bloody thread you smartass.

And regardless, this doesn't change my point one bit.
A) If people didn't want hearing about Russian trains, this thread wouldn't derail as nobody would reply to my posts, and
B) if you don't like Russian trains so much then stop whining and TAKE OVER THE DISCUSSION YOURSELF, it's a small board, everything is in your hands. All you do right now is being a toxic jerk and derailing the thread EVEN FURTHER to the point we are not discussing trains at all. You were the chosen one Anakin, you were meant to destroy the evil, not join it!
¨ No.1441
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Well burned my man. I for one say that your Russian contributions are well appreciated!

It would be grand if could sometimes contribute some wider 1520 trivia to the 1520-thread, for my knowledge is rather limited.
¨ No.1443
≥If people didn't want hearing about Russian trains, this thread wouldn't derail as nobody would reply to my posts

Are you serious? You're saying that the thread derails not because you blatantly change the topic, but because other users acknowledge the change? No, that's completely wrong. What the hell are you even trying to prove? Somebody else contributed, so you're not responsible? Yeah, you are. You're the one that started it.

Look, I get it. You really enjoy Russian trains. That's fine, but man, you really have a propensity to just make whatever reach you can to talk about them in a way that's barely "on topic".
¨ No.1444
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Again, excuses, excuses, accusations - anything to avoid taking the initiative and contributing to the discussion you are so seemingly concerned about. I'm more than sure before that little temper tantrum of yours you didn't contribute anything to any discussions on the board yourself in months, other than, maybe, a few near meaningless single-sentence remarks.
You are a perfect representation of the modern toxic internet shitposter, who would only complain and accuse but NEVER do something constructive and contributing themselves, despite loudly whining about how nobody would bring THEM the discussion THEY want on a golden plate, for their amusement. Even trolls WORK to shape the discussion as they see fit, but you - no, all your efforts KNOWINGLY take it only further to the direction you complain about. A perfect hypocrisy.

Anyway, I've explained myself to you way more than I should have (that is, everything I said beyond telling you to fuck off with such an absolutely egregious complaint), and damn sure you understood everything but the hypocritical side of you won't let you bail and you would rather see this thread die completely BECAUSE OF YOU but with your pretentious speeches of importance of staying on topic than continuing on an adjacent topic.

And again, IF PEOPLE WANTED THIS THREAD TO STAY ON TOPIC THEY WOULD HAVE CONTRIBUTED ON TOPIC, regardless of whether there are my posts or not. At least there is plenty of images of Class 40 on the internet to fill the thread as a "peaceful protest" or just to remind everyone what it is about. Instead, nobody apart from you seems to care (>>1441 this guy by the way doesn't seem to mind me "overtaking" this thread at all), and you try to present it, that if I didn't mention pesky Russian tech in it, then people would be perfectly interested in contributing to class 40? GET FUCKING REAL.
Instead, you deliberately continue to WRECK THE SHIT out of this poor thread without even mentioning trains at all, you think ANYONE after that is going to believe your noble cause of keeping the thread on topic?! GET FUCKING REAL (x2)

Heres the difference between us. While I, no matter on topic or not, still add to the overall train discussion on the board, your meta shitposting only subtracts from it. And if you care AT ALL about this precious thread (and it's all not about just you having a problem with Russian trains... or likely things Russian in general) you will not reply with another toxic whining trying to make me feel guilty but STFU and deliver something positive to the discussion, or at the very least avoid wrecking it even further. (P. S. Speaking of rollers on diesel locos...)
¨ No.1445
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Heres what I gonna do, to partially redeem myself for participating in this meta shitposting debacle and to try and put this thread back on tracks, with whatever content I can contribute - showing on my example something which is way too much of an effort for our bitchy "purist" who tries to save the thread from Russian propaganda by completely derailing it into a train-free discussion...

By the way may I pay homage for how sleek and stylish Class 37 looks in this livery, even despite somewhat wacky snout? I've never been vey fond of Brit loco exteriors but this looks great.

SPEAKING OF meeting Russian and British trains, I bet y'all didn't know that USSR bought a British HS4000 in the 1970s for testing&research purposes? Look at it with the SA-3 autocoupler and dem thicc Soviet gondolas!
So basically it was imported largely as part of the research into Soviet high-speed rail program, to try and explore other countries' experience on that and in general in loco engineering, mostly the engineers were curious how did they manage to achieve speeds of near 200 km/h on these bogies. Surprisingly they learned there was nothing remarkable or fancy about its running gear and drivetrain other than tighter tolerances and different standards which allowed for such a high speed. After that the loco was used in other tests and studies before was scrapped in the 1990s.

As for the previous picture, this is another example of support axles (BTW is it more common to call them runners or rollers? I'm pretty sure I heard both) used on diesel loco, being technically the world's first successful prototype of a mainline diesel-electric loco, Щэл1 (Schel1), built in 1924 in USSR. Despite what many might believe USSR's diesel locomotive experience DID NOT start with Alco and Baldwin, in fact it did even before these two created a successful diesel loco in the first place.
¨ No.1446
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is this the equivalent of the truck dudes with small pp have but for trains?
¨ No.1447
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if you stare at it long enough and hold your breath until you pass out, a class 40 is basically just an SD40
¨ No.1464
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>1chan. quality. thread.
¨ No.1467
Just stop being so fucking salty alraedy.
¨ No.1519
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Oh by the way. If anyone was wondering but too shy to ask, the jerry-rigged pantograph on the metro trainset is due to it being run on the Railway transport research institute's test ring in Scherbinka on the outskirts of Moscow, which is partially opened to the public, hence there is no way to mount a third rail here, but the feeding substation can output all kinds of current, so this is how metro trains are tested here. Similar setup is used on the manufacturer's test track, on Метровагонмаш factory in Moscow region. Granted, in this particular case it was a public "amusement run" event as part of the EXPO-1520 commercial rail expo in 2017, traditionally accompanied by a heritage stock parade and such amusement runs, on "public days" of the EXPO.

Oh, and also our dear purist can rejoice now as there is a dedicated 1520 thread incoming, or possibly he can be even more bummed out since EVEN MORE Russian stuff is incoming, yay! (and also by no means I bar myself from replying with Russian stuff to non-Slav threads IF I FIND SO THEMATICALLY APPROPRIATE, haters gonna piss off)
¨ No.1525
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It's the same test ring where (getting closer to the thread's original topic) the British HS4000 was researched, before moved to Kolomna where another institute is located, one which focuses more closely on diesels. Here it is in Kolomna in '85, already in disrepair and abandonment, by then the USSR has pretty mcuh lost interest in it as they have toyed with it enough and had some way more advanced projects in the works.

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