| Re: Can Maglev trains travel at speed of Sound? |
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Group: alt.philosophy · Group Profile
Author: PDPD Date: Aug 14, 2008 06:52
On Aug 13, 11:39Â am, Sanny hotmail.com> wrote:> Maglev currently travel at 500 Km/ hr.
>
> It is leviated onm a rail using magnetic field.
>
> Since it is free in air. And have a fixed path can we have maglev
> travelling faster than Sound? at 1-2 mach?
>
> Why is maglev so expenive to create? We only need electrical wire to
> create magnetic field on the rail which forces the magnet in train So
> that it is floating in air.
>
> Its a simple Physics. Then why is creating Maglev trains so costly.
>
> In future I am looking for 2000 Kms long tracks with Maglev trains
> running at 2000 Km / hr. Just floating.
>
> It would be cheap and very efficient mode of transport.
>
> China has made lot of progress in designing such trains. We should
> learn this well As it will shorten the World distances.
>
> Bye
> Sanny
Well, it's not as simple as you make it sound.... :>)
Small problems to figure out:
- The current required in an electromagnetic to lift a loaded train
off the tracks is not small.
- Can't use existing tracks at all. They're not designed for high-
speed trains. So have to lay out new runs.
- Nagging issue of making turns at high speed without throwing
passengers to the floor. Need to discuss with jet pilots who fly at
Mach 2+. (Look up "valsalva")
- Many train runs are only effective if they can stop at a station
every three hours or so to pick up and drop off passengers, at an
average speed of 60 mph between stops. Doing that at 600 mph means
stopping every 20 minutes between the same stations. Doing that at
1200 mph means stopping every 10 minutes, and then there's not enough
time to get up to 1200 mph from a stop. Not without making the
passengers pass out.
PD
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