China tests 3,000-kph ‘super-Maglev’ train concept

mckoin

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Re: China tests 3,000-kph ‘super-Maglev’ train concept

May 12, 2014, 09:09:46 AM

#41

Incoming Pekin-Newyork train!

bryant.coleman (OP)

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Re: China tests 3,000-kph ‘super-Maglev’ train concept

May 12, 2014, 09:11:16 AM

#42

Quote from: mckoin on May 12, 2014, 09:09:46 AM

Incoming Pekin-Newyork train!

Sounds awesome... but I have no idea how they are going to cross the Bering strait.

A suggestion:

deisik

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Re: China tests 3,000-kph ‘super-Maglev’ train concept

May 12, 2014, 10:00:29 AM

#43

Quote from: bryant.coleman on May 12, 2014, 09:11:16 AM

Quote from: mckoin on May 12, 2014, 09:09:46 AM

Incoming Pekin-Newyork train!

Sounds awesome... but I have no idea how they are going to cross the Bering strait.

A suggestion:

They said about 200 km tunnel under the Bering strait. BTW, the bridge on the picture would be demolished by ice pretty fast... Cool

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bryant.coleman (OP)

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Re: China tests 3,000-kph ‘super-Maglev’ train concept

May 12, 2014, 10:57:01 AM

#44

Quote from: deisik on May 12, 2014, 10:00:29 AM

They said about 200 km tunnel under the Bering strait. BTW, the bridge on the picture would be demolished by ice pretty fast... Cool

Constructing a tunnel in the Bering strait? That will be extremely expensive. The 50 km Channel Tunnel cost the British some $8 billion. This tunnel will cost somewhere around $100 billion and $200 billion.

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Re: China tests 3,000-kph ‘super-Maglev’ train concept

May 12, 2014, 11:07:59 AM
Last edit: May 12, 2014, 03:29:22 PM by deisik

#45

Quote from: bryant.coleman on May 12, 2014, 10:57:01 AM

Quote from: deisik on May 12, 2014, 10:00:29 AM

They said about 200 km tunnel under the Bering strait. BTW, the bridge on the picture would be demolished by ice pretty fast... Cool

Constructing a tunnel in the Bering strait? That will be extremely expensive. The 50 km Channel Tunnel cost the British some $8 billion. This tunnel will cost somewhere around $100 billion and $200 billion.

Money estimation of such mega-projects is only one part of the issue. You know, during Great Depression the U.S. government made jobless people busy (and paid them some money indeed) by building roads. So this path has been treaded before (no pun intended)... Grin

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Gerald Davis

Re: China tests 3,000-kph ‘super-Maglev’ train concept

May 12, 2014, 03:21:46 PM

#46

Quote from: Kluge on May 12, 2014, 03:06:15 AM

I would be surprised if the g-force "problem" weren't solved prior to a hard launch.

The problem is already solved. It is called limit your acceleration. It is simple and effective. The nice thing about a train (as opposed to say a car or plane) is it follows a fixed track. With a programmed acceleration and deceleration curve, all the g forces over the entire trip becomes deterministic.