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China Transportation

China Debuts Train Prototype That Can Hit Speeds of 385 Miles Per Hour (cnn.com) 172

China has revealed a prototype for a new high-speed Maglev train that is capable of reaching speeds of 385 miles (620 kilometers) per hour. CNN reports: The train runs on high-temperature superconducting (HTS) power that makes it look as if the train is floating along the magnetized tracks. The sleek 21-meter-long (69 feet) prototype was unveiled to media in the city of Chengdu, Sichuan Province, on January 13. In addition, university researchers constructed 165 meters (541 feet) of track to demonstrate how the train would look and feel in transit, according to state-run Xinhua News.

Professor He Chuan (vice president of Southwest Jiaotong University, which worked on the prototype) told reporters that the train could be "operational" within 3-10 years. He added: "Sichuan has rich rare earth resources, which is very beneficial to our construction of permanent magnet tracks, thus promoting the faster development of experiments."

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China Debuts Train Prototype That Can Hit Speeds of 385 Miles Per Hour

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  • The train I was on had a hole in the floor and marked out spots for your feet and handles on each wall.

    I'm a pretty open minded traveler but that took me a few moments to realize what I was supposed to do when I expected to find a urinal.

    • by Joce640k ( 829181 ) on Wednesday March 10, 2021 @02:16AM (#61143128) Homepage

      Meanwhile in the First World they sell you a porcelain throne then a "poop stool" accessory when you find out the throne doesn't work very well.

      That's capitalism, I guess.

      https://www.google.com/search?... [google.com]

      • These stools are hilarious. I just put my feet on the throne.

      • by nagora ( 177841 )

        Meanwhile in the First World they sell you a porcelain throne then a "poop stool" accessory when you find out the throne doesn't work very well.

        That's capitalism, I guess.

        https://www.google.com/search?... [google.com]

        I've never seen one of those in real life. I'd much rather be sitting on the loo than squatting when the train is moving.

      • by sound+vision ( 884283 ) on Wednesday March 10, 2021 @04:07AM (#61143302) Journal

        I'm in the First World and the last time I had a train, it averaged about 25 mph and didn't have a stool or a toilet. Then I moved 8 miles out from the city center and now I don't have a train at all.

        I can get to a Greyhound station after an hour or two on local busses, where I can probably get a 60mph toilet to the next regional metropolis. I suppose it's more luxurious than a covered wagon, which is where many base their comparisons. But considering I live within the city limits of a top-5 United States metropolis... I expect better, somehow. I expected to be a flagship, poster-child, vanguard of modernity. If what they told me meant anything.

        I was born to parents who fled to the US to escape the postwar economic downturn in Europe. They grew up without electricity or running water. History-Channel, Ellis-Island "give us your poor huddled masses" B&W footage type shit. They lived it, and I have the stories firsthand. 50 to 70 years ago, they were dreaming of a better life for their children coming to the US. Now, their children are living in the U.S. and trying to plot a route back to the motherland.

        Thoughts on South/Central Americans trying to cross the border? Give them a generation - or half-generation (10 years) to realize the American Dream is dead, and they'll stop crossing the border on their own. Maybe even quicker than that.

        • Thoughts on South/Central Americans trying to cross the border? Give them a generation - or half-generation (10 years) to realize the American Dream is dead, and they'll stop crossing the border on their own. Maybe even quicker than that.

          Even Mexicans are barely coming here any more and they live next door and have drug gangs (the result of the USA's failed policies) running around decapitating people. Pretty much all we still have coming here from south of the border is refugees fleeing immediate death and/or dismemberment... again, fleeing drug gangs whose activity is only profitable because of the policies of the USA.

          • Pretty much all we still have coming here from south of the border is refugees fleeing immediate death and/or dismemberment.

            Interviews with current (that "still have" of yours) border hoppers put lie to that statement.

          • by kackle ( 910159 )

            Even Mexicans are barely coming here any more ... Pretty much all we still have coming here from south of the border is refugees fleeing immediate death and/or dismemberment...

            The origins of who crosses (and doesn't get caught) are impossible to prove, aren't they? I mean, we now catch 2000 [pewresearch.org] trying to cross per day.

        • by kackle ( 910159 )

          Thoughts on South/Central Americans trying to cross the border? Give them a generation - or half-generation (10 years) to realize the American Dream is dead, and they'll stop crossing the border on their own.

          It only has to be better from whence they came, no?

        • are fleeing wars (ones who's origins can be traced to US drug and foreign policy). We've long since stopped getting a huge influx of job seekers from there. Heck with so much manufacturing going to Mexico what would be the point?
        • Re: (Score:2, Insightful)

          by cayenne8 ( 626475 )
          I don't get it...if you are US born, etc...WTF are you trying to mess with getting on a Bus or a train.

          Get a car like everyone else and you're door-to-door as you please when you please.

          Its one of the great things about living in the USA, you don't have to deal with public transportation.

          • by Ichijo ( 607641 )

            Get a car like everyone else and you're door-to-door as you please when you please.

            Door to door? If your destination is a big-box store, you still have a good walk from your parking space to the door!

            If you truly want door to door, take a taxi, or ride a bike!

            Its one of the great things about living in the USA

            Socialism [taxfoundation.org] makes the USA great?

        • I'm in the First World and the last time I had a train, it averaged about 25 mph and didn't have a stool or a toilet.

          I think you'll find you're note actually in the First World. Shit man the poor european eastern block countries with their heads still buried in the sands of time thinking that the CCCP is about to emerge from its secret hiding to save the world from capitalism has trains with toilets in them.

          I'm in the first world, and our trains not only have fully functional toilets, they have proximity sensor driven handwash basins and flush buttons so you don't need to touch anything in the process.

    • Squating is the Chinese style and once you get use to it, you generally find the flow is much better. The position matches the evolutionary characteristics of pooping better.

      Before this it was a poop trough with a hose and communal shitting. Seen it once in Chongqing.

    • I was thinking to myself that their first full speed derailment is going to be pretty spectacular.
    • Last time I checked NYC subway, and there were no toilet there at all!

      https://www.nydailynews.com/ne... [nydailynews.com]

      • by hnjjz ( 696917 )

        The NYC subway is literally a gigantic toilet (for the homeless mostly but others as well).

    • by Balthisar ( 649688 ) on Wednesday March 10, 2021 @07:21AM (#61143594) Homepage

      Chinese trains have both squatty potties and "western" toilets. In some configurations there's one of each in each car, but in some configurations you may have to go to a different car. The first class cars are usually cleaner, because fewer people use them. They do frequently clean them, though (you'll see the crews getting on and off at the longer stops).

      While squatties are ubiquitous, western toilets are common in businesses, restaurants, train stations, airports, hotels, and even private homes. I lived in China for five years without having to defecate in a squatty ever, and no close calls.

    • by nospam007 ( 722110 ) * on Wednesday March 10, 2021 @12:35PM (#61144468)

      "The train I was on had a hole in the floor and marked out spots for your feet and handles on each wall."

      Like half of Asia (not Japan:-), it's called a squat toilet.

      https://en.wikipedia.org/wiki/... [wikipedia.org]

  • by williamyf ( 227051 ) on Wednesday March 10, 2021 @02:29AM (#61143140)

    Like those other chinese trains we heard about in January 2021

    wink wink

  • How permanent are permanent magnet tracks when 30+ tonnes of train are whizzing over them at 385 mph?

    My gut feel is that they'll demagnetize over a few months. Anyone who knows more about magnetism than me able to weigh in?
    • by Tom ( 822 ) on Wednesday March 10, 2021 @03:16AM (#61143212) Homepage Journal

      Given that Germany has run maglev trains on a 31 km test track for 27 years (between 1984 and 2011), I'm quite sure something like that would've not gone unnoticed.

      (see https://en.wikipedia.org/wiki/... [wikipedia.org])

    • There are plenty of permanent magnets bouncing around inside EVs and myriad industrial machinery that have not lost their magnetisation. The massive coercivity of rare earth magnets makes them pretty resilient to losing their magnetisation.

      I think the main issue would be cost. The alternative is something like the Chuo Shinkansen, and that uses a very smart arrangement of figure eight copper coils in the track to provide a sort of self-stabilising levitation effect along with propulsion. I can't imagine PMs

      • If we're talking about Teslas, only the model 3 has permanent magnets in the motor, S and X have AC induction motors.

        Model 3's haven't yet stood the test of time, but they'll probably be ok. For trains we are talking about 30 tonnes completely suspended, moving at high speed. The forces involved are orders of magnitude higher than what EVs have to handle.
        • The prius has had them for over 20 years. Many motors now used for pool pumps and HVAC blowers/fans have been using PM designed for over a decade.
          • by ceoyoyo ( 59147 )

            The permanent magnets in the alternator in my last car lasted longer than that (and longer than the car).

          • by caseih ( 160668 )

            Not quite. Yes EV motors use very strong rare earth magnets as most of them are brushless DC motors. But most house-hold motors do not use magnets at all. Many utility motors are brushed universal motors with no magnets, and any HVAC blowers or fans use induction motors. There are no magnets whatsoever in induction motors.

    • by tragedy ( 27079 )

      My gut feel is that they'll demagnetize over a few months. Anyone who knows more about magnetism than me able to weigh in?

      That's just not really the way that permanent magnets work. At least not the ones they would use for a maglev track. It is true that some magnetic materials can be demagnetized by mechanical shock or light heating, but your typical industrial magnet is going to stay magnetic for a very long time, pretty much regardless of usage as long as they are not pushed passed certain limits, such as being heated above their Curie temperature. Consider that the permanent magnets in many electric motors see a lot more u

  • the Chinese prototype managed to catch up with the Japanese prototype from 20 years ago?

    Okay.

  • by Jodka ( 520060 ) on Wednesday March 10, 2021 @02:49AM (#61143158)

    Eking out a few more percent improvement in speed is not going to significantly improve the customer experience. Japan had hit 375 before, so 385 is only a 2.7% improvement. Maglevs are relatively short runs, owing to the expense of track construction, so in absolute time saved, it is not much at all. The longest Maglev track in the world is 26.5 miles, so this new faster train would save 6.6 seconds running at top speed end-to-end. Also, this is dead-end research. Wind resistance is proportional to the square of speed and you hit a wall where you can not pack more power into your train to overcome the increased resistance. That's if you do not hit sane economic limits first, where the increased expense of added power is greater than the amount saved by reaching the destination a little faster.

    A better problem to work on would be reducing the cost of manufacturing and deployment and maintenance. Considering the price per unit of time saved in transport, what gets more people where they are going faster? That 2.7% improvement in speed or more fast trains at a reduced cost. Or a different approach, such as Hyperloop?

    Seems more like a game of one-upmanship between engineers at public expense than a conscientious attempt to reduce commuting times.

    • I disagree.. If they can develop a train experience that is faster than the equivalent flight route, it's a big win. I'm sure general maintenance is much cheaper than aviation too (assuming corners aren't cut)
      • by AmiMoJo ( 196126 )

        Maintenance for high speed rail is quite intensive but I don't know how it compares to aircraft. Cheaper I imagine.

        The Japanese system inspects trains at the end of every run (so several times a day), with more detailed inspections every few days. They also have special track inspection trains that run overnight and survey the entire network. A lot of the work is automated.

        • I don't know how it compares to aircraft. Cheaper I imagine.

          Your imagination isn't relevant. Should have stopped at "aircraft".

    • by bluegutang ( 2814641 ) on Wednesday March 10, 2021 @03:28AM (#61143238)

      Right now Japan is building a 286km long maglev [wikipedia.org] to link its largest cities. There is currently a HSR route between them which takes 100 minutes and is over capacity, so they are adding a maglev route which will take just 40 minutes. Despite the fact that the maglev route needs to be 90% tunneled due to the large mountains in the way (massively increasing the cost), the maglev is projected to be economically viable. So no maglev is not a dead end.

      China is in about the same situation as Japan - existing HSR lines which are very well used and also slower than optimal (Beijing-Shanghai is about 5 hours by HSR), and extreme difficulty in adding additional air capacity. So maglev makes sense there too.

      No China's 385mi/hr maglev is not much better than Japan's 375mi/hr maglev, but it has the advantage (for China) of being China's. More competition brings down prices and also allows independence from potentially hostile foreign suppliers.

      You're right this is not a "conscientious attempt to reduce commuting times". It's not an attempt to reduce commuting times at all. It's an attempt to reduce times for long distance travel.

      • by AmiMoJo ( 196126 ) on Wednesday March 10, 2021 @03:49AM (#61143268) Homepage Journal

        It's worth saying that Japan's new maglev is going to start at around 600km/hr, but is expected to get faster over time. They are very conservative with speed - the current conventional trains are rated for high speeds than they use in operation due to noise concerns and a desire to gain operational experience before getting close to engineering limits.

        The Japanese system is expected to be profitable over the long term, over decades. It's also in demand, several cities wanted the route to pass by them do they could have stations. I've seen the prototype running and it's incredible, the speed kind of short-circuits your brain because there's just no other similar experience to seeing something so massive moving so fast so close to you.

    • That's if you do not hit sane economic limits first, where the increased expense of added power is greater than the amount saved by reaching the destination a little faster.

      There's a train in Ca that demonstrates this ("sane economic limits") is an unfortunate delusion. Amtrack too, for that matter.

  • Unless the track is completely segregated from any possible contamination including windblow debris then hitting something at 385mph could be potentially catastrophic. Sure , derailing a maglev is much much harder than a standard train but going that speed amplifies the possibility considerably.

    Also from a purely psychological POV, I wonder how many people would feel comfortable at 385 on the ground anyway? I've been on eurostar a number of times which reaches 186mph/300kmh and even at that speed I get a bi

    • Also from a purely psychological POV, I wonder how many people would feel comfortable at 385 on the ground anyway?

      They may pay extra for a window seat.

      Have you ever taken a bullet train in Japan or China? The fast-changing views are a joy to watch.

  • Bu bu hyperloop (Score:5, Interesting)

    by AlexHilbertRyan ( 7255798 ) on Wednesday March 10, 2021 @03:17AM (#61143214)
    wow americans are so gracious, praising the invisible bullshit hyperloop , but criticizing this real chinese train
    • wow americans are so gracious, praising the invisible bullshit hyperloop , but criticizing this real chinese train

      lololol

      It's exactly like hyperloop in that it's not real, it's a prototype. They only have 165 meters of track, so they can only have demonstrated it moving at very low speeds. TFA says "the train could be "operational" within 3-10 years."

    • Nice attempt to turn this into ethocentrism. One problem: Who is praising it, that's not an official-if-not-actually-compensated-ass-kisser?

      Serious question.

      Every single coverage of hyperloop that allows comments that I've seen IMMEDIATELY results in quite well-informed people (engineers, etc) commenting on the ridiculousness, absurdity, if not outright terrifying DANGER posed by a 1+ ton projectile full of an organic slosh of former-people shooting at 1000+ mph through a fragile tube built on some of the

  • by PinkyGigglebrain ( 730753 ) on Wednesday March 10, 2021 @03:21AM (#61143226)

    China has revealed a prototype for a new high-speed Maglev train ...

    ... university researchers constructed 165 meters (541 feet) of track ...

    Upon which they placed a 21-meter-long (69 feet) prototype which has never moved very fast, though it might have gotten close to a 100kph on the back of a transport truck.

    China still needs to build several hundreds of kilometers of rail for this train before they can actually say how fast it can go. Right now it's all the performance data from simulations and drafting table calculations.

    Cool tech but I've heard of a lot of maglev train projects that never got anywhere so I look forward to seeing if China can actually pull this off.

    • by AmiMoJo ( 196126 )

      China does have operating maglevs. The Shanghai Airport one is the fastest train in the world.

      They were considering maglev for their national high speed rail network, but in the end went with conventional rail. Then they build more high speed rail than the rest of the world has combined in about a decade.

      • The Shanghai maglev was built by Germany I believe. The other high speed rail in China was eventually built by Chinese engineers, and I would agree it is quite nice, same quality as Japan and with better service. I have no doubt they have the expertise to extend this to maglev but this would be something new for them. As with most superconducting tech the Shanghai train was never profitable the last I heard.

  • by fahrbot-bot ( 874524 ) on Wednesday March 10, 2021 @03:28AM (#61143242)
    That's the problem with Chinese trains. You have one and you want another in 385 miles ... :-)
  • is capable of reaching speeds of 385 miles (620 kilometers) per hour.

    Aka 384.9 x faster than an escalator.

    • by Dareth ( 47614 )

      It is hard enough to step off the escalator. Imagine hopping off the train, even if it slows down for you at the station.

  • I'd hate to be the one who has to clean all the bits of metal off the tracks.
    Especially around platforms where people accidentally drop things.

  • This prototype hasn't even been tested yet, while Japan has set the record back in 2015 with a test run reaching 603 km/h (375 mph) -

    https://edition.cnn.com/2015/0... [cnn.com]

    The first long-distance intercity maglev railway is already being built between Tokyo to Nagoya, and likely on to Osaka.

  • by robi5 ( 1261542 )

    Its acceleration must be impressive if they could demonstrate 600km/h on a 165 meter length track. Sounds legit

  • China absolutely stole the tech from Transrapid and did not have to do any of the real R&D on it.

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