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Could maglev trains eventually replace air travel?

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    biggytbiggyt Posts: 466
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    A train track over the Pacific and Atlantic? What could possilby go wrong!
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    bluebladeblueblade Posts: 88,859
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    They started experimenting with them in the early 1950's, and they've still not caught on.
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    Diamond statDiamond stat Posts: 1,473
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    biggyt wrote: »
    A train track over the Pacific and Atlantic? What could possilby go wrong!

    Well trains usually prefer tunnels to riding waves/
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    ValaraukarValaraukar Posts: 54
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    It would be good to have maglev trains running in airlocked underground and subsea tunnels that contain a vacuum. Velocities could easily exceed the speed of sound.
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    Gordie1Gordie1 Posts: 6,993
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    The vacuum tunnel is supposedly the future, London to New york in 45 mins, london to Glasgow in 6 minutes.:D
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    biggytbiggyt Posts: 466
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    Well trains usually prefer tunnels to riding waves/

    A 4000 mile long tunnel? Never happen
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    CentaurionCentaurion Posts: 2,060
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    What's a maglev train then ?
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    WhatJoeThinksWhatJoeThinks Posts: 11,037
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    In a word, no.

    The infrastructure costs somewhere in the order of a billion pounds per mile of track, before you even begin running services. They're ideal in big cities where journeys are short and road traffic densities are high, as they can help to reduce congestion. There is no congestion over the oceans.
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    Gordie1Gordie1 Posts: 6,993
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    Magnetic levitation, basically the train doesn't touch the tracks as the ,train is clamped around the track but electromagnets hold it "off the rails", meaning you could push it, and it would simply glide, it takes some of the resistance out of the equation, and also means there is less noise and the ride is smoother as really the train in flying.
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    ValaraukarValaraukar Posts: 54
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    biggyt wrote: »
    A 4000 mile long tunnel? Never happen

    Probably not in our lifetime, but one day it will most likely happen.

    http://www.tunneltalk.com/Strait-Crossings-Jan10-Conference-report.php
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    AneechikAneechik Posts: 20,208
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    What happens when it goes over the continental boundary as they're moving all the time?
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    [Deleted User][Deleted User] Posts: 1,954
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    Aneechik wrote: »
    What happens when it goes over the continental boundary as they're moving all the time?

    Expansion joints on a larger scale, they're used in engineering all over the place for varying reaons.
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    nvingonvingo Posts: 8,619
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    Gordie1 wrote: »
    Magnetic levitation, basically the train doesn't touch the tracks as the ,train is clamped around the track but electromagnets hold it "off the rails", meaning you could push it, and it would simply glide, it takes some of the resistance out of the equation, and also means there is less noise and the ride is smoother as really the train in flying.
    Also the track is the motor, meaning the vehicle doesn't carry fuel or motors for locomotion, and the motor can be immensely powerful.
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    david16david16 Posts: 14,821
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    Going to the centre of London from the north of the uk via Heathrow airport seems a silly way to get tgere.

    Heathrow airport is not even in London.
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    d'@ved'@ve Posts: 45,531
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    Hmmm, 311 mph, eh? Well as a maglev in Japan reached 360 mph 11 years ago in 2003, that's not exactly progress. And as our HS2 will have a maximum possible speed of 250 mph (if it actually happens), the answer to the original question is probably "not within a generation". They might not even replace conventional High Speed trains, never mind planes (here). Infrastructure costs compared to aircraft will probably always be prohibitive except in a few special cases.
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    DigitalSpyUserDigitalSpyUser Posts: 1,319
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    blueblade wrote: »
    They started experimenting with them in the early 1950's, and they've still not caught on.

    This. The concept has been around for decades but nobody has really been able to turn it into a practical reality.
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    nanscombenanscombe Posts: 16,588
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    biggyt wrote: »
    A 4000 mile long tunnel? Never happen
    Aneechik wrote: »
    What happens when it goes over the continental boundary as they're moving all the time?
    Andrew-W wrote: »
    Expansion joints on a larger scale, they're used in engineering all over the place for varying reaons.

    Maybe you could create a submerged, yet suspended, tube instead.

    Perhaps some supports could be on rollers / wheels so that the support wouldn't actually move even if the crust underneath did.
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    TelevisionUserTelevisionUser Posts: 41,417
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    Could maglev trains eventually replace air travel?

    Not for transatlantic fights.
    Gordie1 wrote: »
    The vacuum tunnel is supposedly the future, London to New york in 45 mins, london to Glasgow in 6 minutes.:D

    It's the past and it turned out to be a right lemon: http://www.theguardian.com/science/the-h-word/2014/apr/04/brunels-atmospheric-railway-history-technology-
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    snukrsnukr Posts: 19,729
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    david16 wrote: »
    Going to the centre of London from the north of the uk via Heathrow airport seems a silly way to get tgere.

    Heathrow airport is not even in London.
    Yes it is, it's right on the edge of Greater London, it's the only 'London' airport that is actually in London though, apart from London City airport.
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    Old Man 43Old Man 43 Posts: 6,214
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    The problem with Maglev systems is that they are completely incompatible with normal railways.

    This means it would be impossible for trains to run on both the high speed and the normal speed rail lines.

    In the case of most European high speed systems the trains run on both high speed lines and normal speed lines. This is also planned to be the case with HS2.

    So all in all it is unlikely that we will get High Speed Maglev in this country.
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    AndrueAndrue Posts: 23,366
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    Doubtful. They've been in development since the 1970s. They've probably had their day.
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    Diamond statDiamond stat Posts: 1,473
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    They are becoming the new staple for Japan and China and replacing traditional railways...
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    TelevisionUserTelevisionUser Posts: 41,417
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    They are becoming the new staple for Japan and China and replacing traditional railways...

    It is an expensive prestige technology but what would really help its uptake and growth is the development of room temperature superconductors.

    http://en.wikipedia.org/wiki/Superconductivity
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    grumpyscotgrumpyscot Posts: 11,354
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    Gordie1 wrote: »
    london to Glasgow in 6 minutes.:D

    Crikey - going either way would put me off travel for life! One city I absolutely hate (beings with "L") the other I barely tolerate!
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    David (2)David (2) Posts: 20,632
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    Gordie1 wrote: »
    The vacuum tunnel is supposedly the future, London to New york in 45 mins, london to Glasgow in 6 minutes.:D


    If we want that sort of stuff in the UK, the gov will have to quadruple the council tax for everyone in the country. Maybe double the amount of tax on petrol/diesel as well, maybe put vat up to 40%.

    In short, unless prices for such massive engineering projects comes down radically, I can't see it happening.
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