#4109710 - 04/21/15 06:10 PM
Re: New Japanese Train Will Operate With Passengers Up To 313 mph
[Re: Haggart]
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Joined: Apr 2008
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Raw Kryptonite
Beat the Kobayashi Maru
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Beat the Kobayashi Maru
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MS
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Sure, what could possibly go wrong?
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#4109774 - 04/21/15 08:36 PM
Re: New Japanese Train Will Operate With Passengers Up To 313 mph
[Re: Haggart]
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Joined: Feb 2000
Posts: 49,716
Jedi Master
Entil'zha
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Entil'zha
Sierra Hotel
Joined: Feb 2000
Posts: 49,716
Space Coast, USA
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The passing of trains removed the location of some excellent opportunities for Bond film fight scenes.
The Jedi Master
The anteater is wearing the bagel because he's a reindeer princess. -- my 4 yr old daughter
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#4109775 - 04/21/15 08:41 PM
Re: New Japanese Train Will Operate With Passengers Up To 313 mph
[Re: Haggart]
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Joined: Dec 1999
Posts: 7,747
Ssnake
Virtual Shiva Beast
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Virtual Shiva Beast
Hotshot
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Posts: 7,747
Germoney
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WRT Britain, making the trains not derail, and being on time, would add infinitely more value than increasing speed. Likewise, making the trains more comfortable is probably also a big plus. But that requires a culture change in the rail companies whereas a faster train is primarily and engineering problem, and more prestigious.
Maglev trains... they're kinda neat, but may actually react dramatically less benign to power loss than a normal train, particularly if only half of the power goes (e.g. the magnetic field on the left side of the train track). This would create a huge friction imbalance with a ... uh ... resulting torque that might more or less instantaneously disintegrate the whole train, at top speed. Far more dramatic than derailing. As long as everything works maglev trains and airplanes are wonderful methods of transportation (come to think of it, submarines and spacecraft also fall into that category). But they tend to be more problematic than other technologies if something goes wrong.
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#4109879 - 04/22/15 02:20 AM
Re: New Japanese Train Will Operate With Passengers Up To 313 mph
[Re: Haggart]
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Joined: Nov 2001
Posts: 24,065
oldgrognard
Administrator
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Administrator
Lifer
Joined: Nov 2001
Posts: 24,065
USA
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I am afraid that we will read about a failure. And at that speed it will be bad.
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Someday your life will flash in front of your eyes. Make sure it is worth watching.
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#4109931 - 04/22/15 06:40 AM
Re: New Japanese Train Will Operate With Passengers Up To 313 mph
[Re: Raw Kryptonite]
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Joined: Aug 2002
Posts: 4,010
PV1
sometime mudslinger
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sometime mudslinger
Senior Member
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Ladner, Wet Coast, Canada
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Sure, what could possibly go wrong? In a country which just might have the highest frequency of earthquakes on earth - if you've been there two weeks and haven't felt a tremor, you aren't paying attention. List of this week's quakes: http://www.jma.go.jp/en/quake/quake_local_index.html
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#4109940 - 04/22/15 07:49 AM
Re: New Japanese Train Will Operate With Passengers Up To 313 mph
[Re: Ssnake]
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Joined: May 2000
Posts: 9,710
Legend
Legsie is such a
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Legsie is such a
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Zutphen, NL / ShangHai, China
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The Japanese Maglev version does have additional wheels for slow speeds. So Ssnake's scenario would not really affect that version. All maglev trains do, but still the friction of wheels is much higher than that of the magnetic field, so a one-sided levitation failure at high speed is still a very critical event. To the best of my knowledge no maglev manufacturer has actually tested the safety against this type of disaster, and for a reason. Levitation failure at top speed will be disastrous. They do? I sometimes take the SH maglev and you can actually feel the units being lifted a centimeter or two before it departs. For the rest it's a very fast, very uneventful trip - seven and a half minutes and we're there, 30 kilometers from where we started. But I've never felt it use wheels.
There is a theory which states that if ever anyone discovers exactly what the universe is for it will instantly disappear and be replaced by something even more inexplicable. There is another theory which states that this has already happened.
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#4109945 - 04/22/15 08:12 AM
Re: New Japanese Train Will Operate With Passengers Up To 313 mph
[Re: Smokin_Hole]
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Joined: Mar 2008
Posts: 2,882
Meatsheild
Arma3 guy!
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Arma3 guy!
Senior Member
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Peoples Republic of Yorkshire
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I heard on the radio recently comments from a British behavioral economist who works in the ad business. He has been somewhat vocal against the 80 billion pound proposed high speed line between London and Birmingham. His point was that so much money to shave an hour or two of travel time is a huge waste that will never be recouped either directly or as a social good. Less money spent making the trains more comfortable and enjoyable and with high speed internet is a better solution for both the taxpayer and the traveler. But since I am not a British (or Japanese) taxpayer I say keep making 'em faster. I've ridden the Shinkansen several times and the TGV once. As a professional air traveler I say, TRAINS RULE! thats different though, the main arguments against it are that it'll only be used by a (very) select few, and they want to dig through an area of outstanding national beauty (where common joe cant get their roof re-tiled without a lengthy planning fight), with compulsory purchases of houses, and that the billions they want to spend on it would be far better spent getting the current stuff up to even a half decent standard or spent improving truly god awful roads. The thing that impresses me about japanese train services is that it always seems to be immaculate, on time and efficient, how the heck they do it i have no idea, but if anyone can do high speed rail .. its them!
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#4109957 - 04/22/15 09:20 AM
Re: New Japanese Train Will Operate With Passengers Up To 313 mph
[Re: Legend]
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Joined: Jun 2005
Posts: 2,271
Sluggish Controls
Member
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Member
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Posts: 2,271
Hong Kong
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The Japanese Maglev version does have additional wheels for slow speeds. So Ssnake's scenario would not really affect that version. All maglev trains do, but still the friction of wheels is much higher than that of the magnetic field, so a one-sided levitation failure at high speed is still a very critical event. To the best of my knowledge no maglev manufacturer has actually tested the safety against this type of disaster, and for a reason. Levitation failure at top speed will be disastrous. They do? I sometimes take the SH maglev and you can actually feel the units being lifted a centimeter or two before it departs. For the rest it's a very fast, very uneventful trip - seven and a half minutes and we're there, 30 kilometers from where we started. But I've never felt it use wheels. I'm with Legend on this one. The Shanghai maglev is totally unenventful, but very fast. Love the turns with a gentle roll to keep you comfy in your seat. Not a single bump, and so never expected it to have wheels. Cheers, Slug
"Major Burns isn't saying much of anything, Sir. I think he's formulating the answer..." - Radar - M*A*S*H
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#4110005 - 04/22/15 11:52 AM
Re: New Japanese Train Will Operate With Passengers Up To 313 mph
[Re: oldgrognard]
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Joined: Feb 2000
Posts: 49,716
Jedi Master
Entil'zha
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Entil'zha
Sierra Hotel
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Space Coast, USA
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I am afraid that we will read about a failure. And at that speed it will be bad. Considering how many die when a train going a fraction of that speed derails, I don't really think it can be worse. The Jedi Master
The anteater is wearing the bagel because he's a reindeer princess. -- my 4 yr old daughter
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#4110078 - 04/22/15 12:51 PM
Re: New Japanese Train Will Operate With Passengers Up To 313 mph
[Re: Jedi Master]
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Joined: Mar 2008
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Meatsheild
Arma3 guy!
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Arma3 guy!
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Peoples Republic of Yorkshire
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and look on the bright side, at least the end would be quick! (o come on it had to be said!
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All spelling errors are included free of charge and courtesy of a broken spell checker!
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#4110106 - 04/22/15 01:25 PM
Re: New Japanese Train Will Operate With Passengers Up To 313 mph
[Re: Haggart]
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Joined: Jan 2001
Posts: 10,113
KraziKanuK
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Ottawa Canada
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If anyone whats to build their own maglev, http://students.iitk.ac.in/projects/eclub_maglevAlso includes Working of MAGLEV: General Description in which it states the Japanese system, EDS, is safer than the German system, EMS.
There was only 16 squadrons of RAF fighters that used 100 octane during the BoB. The Fw190A could not fly with the outer cannon removed. There was no Fw190A-8s flying with the JGs in 1945.
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