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File: 1406344101785.jpg -(158587 B, 1024x683) Thumbnail displayed, click image for full size.
158587 No.116618   [Reply]

Nevada County Narrow Gauge Railroad Museum #13

Is this a "true" steam locomotive?


>> No.116630  

So what? It haas an unusual method of generating steam, but the water vapor still carries the power. I say yes.

>> No.116656  
File: 1406417935698.jpg -(82722 B, 621x416) Thumbnail displayed, click image for full size.

How about this one? It was originally coal-fired, but has been converted to compressed air.


>> No.116663  
File: 1406427453349.jpg -(31875 B, 688x285) Thumbnail displayed, click image for full size.

"Air" is not "steam" except maybe in Malaysia. No dice.

>> No.116664  

How the Hell is the engineer supposed to drive that thing? Where does he sit? Is he meant to straddle it on top and ride Dr. Strangelove-style?

>> No.116668  
File: 1406433709407.jpg -(125339 B, 1000x627) Thumbnail displayed, click image for full size.

However the engineer squeezed into the cab, it was surely an improvement over it's predecessor.

File: 1406318284004.jpg -(136600 B, 606x454) Thumbnail displayed, click image for full size.
136600 No.116604   [Reply]

WMATA finally says all systems are go for the Silver Line to open at noon tomorrow. Test trains have been rehearsing the new schedule since Sunday disguised as orange line trains terminating at east falls church and then making all stops out to Reston. It's happening?

6 posts and 1 images omitted. Click Reply to view.
>> No.116625  


Minor glitch? Like when the network shat itself on one of Obama's Inauguration Days? Or that time a couple of trains decided to play a game of "Surprise Buttsechxz!"?

>> No.116626  
File: 1406354031640.jpg -(501271 B, 1280x853) Thumbnail displayed, click image for full size.
>brand new track
>still fucking lumpy and crooked

Who the fuck lays your shit, America?

Ex commie 'shithole' for comparison

>> No.116627  
File: 1406357818540.jpg -(258551 B, 1024x768) Thumbnail displayed, click image for full size.


Indeed, disgraceful. Your image is not of an urban commuter line though so it's not really comparable. Here's a more comparable image, ISAP's recently (2008-2012) updated trackwork (urban commuter line with a 80km/h speed limit)

>> No.116628  

That's the joke: WMATA doesn't have "minor glitches," they have full-on FUBARs.

>> No.116629  

no, they glitch a lot too. the past year their trick has been going out of service for a few days for track circuit replacement, then coming back with service delays at rush hour due to track circuit failure.

>> No.116641  
File: 1406392762431.jpg -(234839 B, 653x593) Thumbnail displayed, click image for full size.

I'mma just leave this right here...


>> No.116646  
File: 1406405860688.jpg -(2014507 B, 2688x1520) Thumbnail displayed, click image for full size.

Seems to be working so far

>> No.116650  


Looks a lot different than we're used to.

>> No.116652  
File: 1406413010438.jpg -(1044509 B, 2688x1520) Thumbnail displayed, click image for full size.

Indeed, the new stations are pretty schway.

>> No.116653  


Yeah, looks nothing like a level in Fallout 3.

File: 1406388506267.jpg -(59036 B, 750x529) Thumbnail displayed, click image for full size.
59036 No.116631   [Reply]

http://steamag.wordpress.com/ - An on-line publication for SA steam

>> No.116632  
File: 1406388559207.jpg -(106060 B, 700x466) Thumbnail displayed, click image for full size.

The age-old ritual of cleaning fire. (Paul Hloben)

>> No.116633  
File: 1406388615326.jpg -(53411 B, 700x525) Thumbnail displayed, click image for full size.

A morning-shift shunter directs Class 12AR No.1535 into the Germiston running shed. (Lee Gates)

>> No.116634  
File: 1406388665399.jpg -(86645 B, 700x477) Thumbnail displayed, click image for full size.

Aided by the steam condensing chill, a jealous Class 12AR No.1535 is doing her best to obscure side-lined Class 14 and 14R locomotives. (Paul Hloben)

>> No.116636  
File: 1406388729254.jpg -(85170 B, 700x465) Thumbnail displayed, click image for full size.

Some succumb to the ample charms of the steam locomotive at a tender age. (Paul Hloben)

>> No.116638  
File: 1406388796489.jpg -(95082 B, 600x458) Thumbnail displayed, click image for full size.

After a long working day of tending the opposing forces of fire and water, the fireman is getting ready to rake ashes from the ash pan into a special pit. (Paul Hloben)

>> No.116642  

Some good mood shots there, IMAO.

>> No.116651  


File: 1406388707101.jpg -(206981 B, 723x536) Thumbnail displayed, click image for full size.
206981 No.116635   [Reply]

Not your usual graffiti.

>> No.116637  
File: 1406388772650.jpg -(231803 B, 728x536) Thumbnail displayed, click image for full size.

I like how he correctly got capitalists beating hippies.

>> No.116640  


I think he was taking the piss, though.

File: 1406218250864.jpg -(44719 B, 250x250) Thumbnail displayed, click image for full size.
44719 No.116533   [Reply]


>lower speeds
3 posts omitted. Click Reply to view.
>> No.116598  
File: 1406306562025.jpg -(32228 B, 500x403) Thumbnail displayed, click image for full size.


There has already massive buttfrustration because the BNSF wants to run huge oil trains from the Bakken oil fields to refineries and seaports in the Northwest (including Seattle). Some cite environmental concerns, others are all "MUH QUEBEC!" and thinking that so much as a jumped bogey will vaporize a chunk of the city. Not to mention concerns about noise and traffic.

These same people also complained that huge trains full of coal from the Powder River going to Northwest ports were going to fag things up for them. Uppity NIMBYs are the natural enemy of progress and commerce, and Seattle's just chock-full of them.

>> No.116600  

I'm fine with oil and coal trains since they're just a thing that need to exist in other for the lights to keep running but calling them "progress" probably isn't the right choice of word.

>> No.116602  
File: 1406315871348.jpg -(1216369 B, 5184x2938) Thumbnail displayed, click image for full size.

How is moving freight used to build highways, and bridges, and parks, and homes not progress? How is moving freight used to feed, and shelter, and fuel the ambitions and dreams of future Americans and people all over the world not progress?

Nay, I say unto thee, those that stand in the way of this mighty progress deserve to be left in the dust and to whither away like the vine cut loose from the stem. For railroads bring the promise of tomorrow. They bring the hope of a greater future, and they are building America.

(This message furnished in part by the Union Pacific Railroad Company)

>> No.116608  
File: 1406327556203.jpg -(105964 B, 500x333) Thumbnail displayed, click image for full size.

I can't help but think that a lot of this "OIL TRAIN BAD" push is coming from KXL pipeline proponents. Maybe it's just my paranoia, but I keep getting this whole "Those dirty crude oil bomb trains always tip over and spill everything everywhere, but pipelines don't leak!" subtext.

>> No.116609  
File: 1406330868954.jpg -(32827 B, 400x314) Thumbnail displayed, click image for full size.


>> No.116612  

I meant oil trains K-POW
You know the dino juice we put in our tanks and power plants to go about our day?

>> No.116615  
File: 1406338270685.jpg -(49533 B, 640x427) Thumbnail displayed, click image for full size.


Kinda like how anti-pipeline advocates are Warren Buffett's useful idiots?

>> No.116621  

What's up with the Buffett hate?
Is he the flavour of the month "billionaire to shit on"?

>> No.116624  
File: 1406353688275.jpg -(81933 B, 620x434) Thumbnail displayed, click image for full size.


No hate. Just saying what we've always been saying: that those who protest against the KXL pipeline are playing right into Warren Buffett's hands, since he owns the BNSF (who happen to run oil trains from North Dakota to the Texas Gulf Coast).

>> No.116639  
File: 1406391056775.jpg -(3943343 B, 3888x2592) Thumbnail displayed, click image for full size.

I don't discriminate on the types of freight and progress.
I want some more oil trains. I'll be the first to admit that I oppose the KXL pipeline because it means more work for me.

Work is good, work is life.

File: 1406218699665.png -(200772 B, 1000x1511) Thumbnail displayed, click image for full size.
200772 No.116534   [Reply]

On the electrical side of things, does anyone know why the overhead supply seems to have an effect on acceleration?
It seems that 1500vdc stock always seems to have higher acceleration specifications than its 20/25kvac counterparts*. This is regardless of AC or DC motors. And weight doesn't factor into it since things like the E501 are already absurdly light at as little as 26t a car and has piss acceleration. At the same time, a lower voltage also seems to have an effect as Mini Shinkansen trains have higher acceleration specs under 20kV vs 25kV. Or in another thread, it was noted that the EF81 had less power under 20kV vs 1500v.

*The stark exception to this is the relatively overpowered HK SP1900 which accelerates like a boss. Maybe the hardware side of things might reveal clues. The TX2000 is another possible candidate.

One guess is the waveform of AC has less area under the curve compared to a 3 phase rectified to DC. But then under AC, a train could just pull more current on the cycles to make up couldn't it? Some sort of transformer limitations where you'd have to get a substantially larger one to fill the spec and in some cases it'd have too much magnetic fields so it wasn't possible (like the EF500) perhaps?
I'm no electrical engineer though.

>> No.116581  

This has little to do with the power supply method and more to do with train design. 25kV overhead and modern, adequately-sized power electronics can definitely support whatever tractive force one may need. At 25kV a pantograph can collect a lot more power compared to 1.5kV.

The differences depend on a lot of factors. Depending on the year a train was designed and the type of traction motors it uses there can be limitations. For example, the EF81 is an old design that uses DC traction motors. The lower power under AC is probably due to the power limits of the electronics (transformer, rectifier etc).

Furthermore, trains do not exist in a vaccum, but rather, they operate on lines using specific schedules and drivers are told whether to optimize their driving style for speed or power conservation.

Just to tl;dr and make it clear though, 25kV AC supplies a lot more power than 1.5kV DC and that power can be converted to high tractive force, but it's usually the requirements of a line that play the greatest role.

>> No.116582  

But then what about the case of the Mini Shinkansen? Takeoff is almost universally at full notch on Shinkansen lines and these would definitely have much more capable supplies than conventional lines. Yet on the conventional line, acceleration is higher.

Or there's the HK K sets which have almost double the acceleration compared to the 25kV HK Metro Cammell whilst only having 50% more power per car on a presumably similar gear ratio (the K is even geared to go slightly faster on paper). (on that note, the HK K set probably has the highest acceleration out there for an EMU, even beating the Hanshin "Jetcar"). Or back to the SP1900 which has more power than the K per vehicle but also has 30% lower acceleration. All of these trains also follow the same purpose of being metro commuter trains.
These specs are also on presumably on paper and thus can be regarded as full notch, as opposed to driver behaviour.

On a different note, all trains running through the Tokyo Metro seem to be geared for exactly the same acceleration of .92m/s/s. Whether it was JR, Tokyo Metro, Tobu or Tokyu. Though the reasoning would of course be going full notch and being able to design a timetable around it. Suddenly the Odakyu MSE appears and stuffs up everything.

>> No.116585  

Note that acceleration is not linear but rather decays exponentially as speed increrases. Stated acceleration figures in specification tables are usually the average from 0 to maximum operational speed. But a train with a higher operational speed will obviously accelerate slower as speed increases (due to drag) pulling the average lower even if both trains accelerate roughly at the same pace.

In any case, your questions are not easy to answer and don't have anything to do with electrical limitations of 25kV AC but rather line operator policy.

>> No.116586  

Some of the differences in acceleration can be traced to gearing. You can gear the final drive tall for speed or short for acceleration.

I suspect with the EF81 that transformer/rectifier could not be dimensioned big enough given the available space/cooling to deliver full power to the locomotive.

>> No.116617  

A possible factor is that on lines that need high acceleration, they would have been electrified earlier, often before 25kV became popular. Lines that didn't need the extra acceleration would have stuck with diesel for longer, and once they electrified, they specify their requirements similar to stock already running.

File: 1406301570128.jpg -(125333 B, 1280x853) Thumbnail displayed, click image for full size.
125333 No.116593   [Reply]

That's a... neat... snow sculpture.

>> No.116596  
File: 1406305434835.jpg -(1218042 B, 2456x1632) Thumbnail displayed, click image for full size.

Dildotrain. Dildotrain!

>> No.116597  
File: 1406306045100.jpg -(24875 B, 218x218) Thumbnail displayed, click image for full size.

This trains is dildos.

File: 1406292163719.jpg -(359471 B, 1040x692) Thumbnail displayed, click image for full size.
359471 No.116589   [Reply]

An announcement from june
JR227 expected to service from march next year

I wonder what the ears are for

>> No.116590  

Possibly a combo of nostalgia and stray light blocking.

>> No.116591  

Wouldn't be surprised, though, if they became known as 'cat trains' or 'cats'.

>> No.116592  
>I wonder what the ears are for

To close the gap between two coupled trains and prevent people from falling in there.

File: 1406127414621.jpg -(172510 B, 500x352) Thumbnail displayed, click image for full size.
172510 No.116481   [Reply]

Tram scamming?

>> No.116486  

It's a fake i think.

>> No.116491  
File: 1406154658156.jpg -(392945 B, 772x1102) Thumbnail displayed, click image for full size.


Yeesh, that ungodly noise!

>> No.116527  

They definitely do a similar thing in Thailand. At least in the past couple of decades. Hop on, roll along, hop off to let a train overtake and hop back on. Although I'm not sure what keywords to search online.

ref: comeng a history of commonwealth engineering vol. 5 on describing difficulties with developing an XPT variant or some sort of express for the Thai market

>> No.116530  

Its a big thing in Cambodia too, since the country's rail system collapsed under the Khmer Rouge and proper train services have been very sporadic ever since.

>> No.116532  

It's also a big thing in the DPRK. Due to the infrequent services and chronic maintenance and rolling stock shortages and problems there's a lot of those motorcycle engine-powered little things scurrying about in the rural areas providing provisional traffic.

>> No.116540  
File: 1406225125468.jpg -(63469 B, 500x441) Thumbnail displayed, click image for full size.


>> No.116541  
File: 1406225216468.jpg -(162082 B, 500x387) Thumbnail displayed, click image for full size.

By God, we're slacking off for a chan...

Someone should have posted by now.

>> No.116556  

It's pretty big in Manila, too.


>> No.116561  

Bamboo Railway

File: 1405306088084.png -(52890 B, 1425x800) Thumbnail displayed, click image for full size.
52890 No.116093   [Reply]

Which track gauge is the best? IF you had the God-like power to change all track gauges of every railroad on Earth to one single gauge, what would it be?

7 posts and 1 images omitted. Click Reply to view.
>> No.116189  

It's all arbitrary.

Stephenson's first big project, the Stockton and Darlington, used 4ft 8in gauge track because that was the gauge for the track in the local horse-drawn mines that it was meant to serve. Later when he designed the legendary Liverpool & Manchester, he increased the gauge by a half inch so the wheels would have more lateral play. Hence, simply because the first modern railway happened to use this gauge, it became the de facto world standard today.

>> No.116437  

Go Russian and round it up to five foot dead.

>> No.116438  

Smoot gauge!!!

>> No.116483  

>>116437 -- The Finnish (and Estonian) gauge, you mean.

>> No.116498  

Russian gauge and Finnish gauge have a difference of 4 mm, so they are basically the same.

>> No.116529  

But no one uses those feet no more (some gauges in the world were also different because of the variation in what a feets were; Swedish 3 foot gauge is 891mm, for example, which doesn't exist elsewhere, due to the definition of a foot being different). I mean, except for the obstinate Americans.

I like 1520mm, though. Nice and rounded.

>> No.116550  

The extra 20mm do jack for stability or cost, if designing completely from scratch, a truly round number sounds nicer to me.
A universal gauge sounds convenient, but I see a use for standard and narrow for commercial traffic, not to mention the miniatures, of which most agree there are too stinking many.

>> No.116552  


>except for the obstinate Americans

99.9% of our rail lines are standard gauge (4ft-8.5in), which is also the standard gauge in Canada, Mexico, most of Western Europe, China, and Australia. The Brits still hang on to imperial track gauges as well in the form of their various 2 ft gauge tourist lines.

>> No.116553  

...not to mention 5ft-6in gauge in India and Argentina. All of these are imperial-based gauges.

>> No.116559  

I meant rather that, while the 1435mm comes from the imperial measure (obviously), the imperial units are not used in common parlance except by the Americans and the brits, as opposed to metric.

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