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

On Aug 13, 9:39 am, Sanny hotmail.com> wrote:

In sci.physics Sanny hotmail.com> wrote:

Sure, all you need is massive amounts of power to get above Mach 1,
aerodynamic design to keep the thing from either shaking itself to
pieces or flying off the track, and some way to keep people from
miles around coming to blow up the tracks when they are fed up
with the sonic booms.

Which requires current which cost money on a continual basis in addition
to the cost of building and maintaining a complex roadbed and control
system.

Because physics is not the same thing as manufacturing.

You've never built a thing in your life, have you?

oldcoot wrote:

On Aug 13, 9:53 pm, oldcoot sbcglobal.net> wrote:

What if we create a tunnel air free [Vacuum]. So no air friction and
also all that noise will not get out. As Sound needs a medium to
travel.

So the train will be moving in a Vaccum tunnel at speed of 2000 Km/ hr

Bye
Sanny

On Aug 13, 10:45 am, andy everett verizon.net> wrote:

Frontal area probably would present the largest percentage of drag.
Once the nose has "punched the hole", the length of the train should
present little additional drag. A Google under 'supercavitating
torpedo' presents a good analogy. And for some really cool videos of a
jet car breaking the sound barrier, go on YouTube and search under
'Thrust ssc'.

Dear Sanny,

On Aug 13, 11:22 am, Sanny hotmail.com> wrote:
...

This is possible, ans would reduce losses to air friction.
http://www.impactlab.com/2008/06/27/trans-atlantic-supersonic-maglev-vacuum-tube.../

Additionally, you could increase the temperature of the air and
increase its speed of sound. The tunnel could be hot, and you could
still exchange heat into it from the passenger compartment.

David A. Smith

Sanny wrote:

Maybe mach 1 but air resistance is a big issue....

...and the other is acceleration and braking time. A route that permit
super fast maglevs would have points quite separated.

I'm sure it looks that way in dreams.

Sanny wrote:

It's the route thing. Are you imagining people commuting 1000km between
stops?