Can a magnetic levitation train travel at supersonic speed?

Magnetic levitation trains are not uncommon for a long time. Today it is undoubtedly one of the most promising modes of transport of the future. Not so long ago in China, the Shanghai Maglev Train managed to accelerate to 430 km / h. However, this record was broken by its Japanese counterpart - Maglev LO, which overcame the milestone of 500 km / h.

And yet these “champions” have their own problems and limits. The fact is that up to 83% of the energy they spend on overcoming air resistance. Professor Deng Zigang of Chengdu University and his colleagues have developed an original technology called Super-Maglev. Its implementation will allow in the future "magnetic" trains to rush at a speed of more than 2 times the speed of sound.

According to this technology, trains will move inside a sealed tunnel, where a partial vacuum will be created. The vacuum obtained in this way minimizes air resistance many times over and will allow a speed of up to 3000 km / h.

A prototype transport system of the future called Evacuated Tube Transport has already been built. The pressure inside the tunnel is 10 times lower than the outside atmospheric pressure. True, it's too early to talk about prohibitive speeds - the speed of the locomotive does not exceed 25 km / h, which is explained by the size of the system and the small turning radius