## China to buy 100 350 km/h (217 mph) Domestic High-Speed Trains

##### 17 March 2009

Xinhua. China’s Ministry of Railways (MOR) signed a deal with state-owned vehicle producer CNR Corporation Limited (CNR) for 100 high-speed CRH (China Railway High-speed) trains for 39.2 billion yuan (US$5.730 billion). With a designed speed of 350 km/h (217 mph), the new CRH trains will travel between Beijing and Shanghai in 2011, when the construction of the 1,318-km, high-speed railway between the capital city and the country’s financial hub is expected to complete. “The contract does not include any foreign parties, as Chinese companies possess core technologies for the high-speed trains and have complete intellectual rights over the 350 km/h CRH type,” said Zhang Shuguang, director of the transport department under the MOR. The MOR had introduced railway technologies from Japan, France, Germany and Canada in the development and production of the 200 km/h CRH trains already in operation at present. All 100 trains will be self-developed and manufactured under the CNR group. Tangshan Railway Vehicle Co. and Changchun Railway Vehicle Co., two CNR subsidiaries, will be in charge of the production of 60 sets and 40 sets, respectively. The MOR plans to spend 500 billion yuan (US$73.092 billion) to buy trains over the next four years.

In the US anything faster than 79 MPH is "high speed". Pathetic.

These trains are no doubt all-electric.  They will make very nice replacements for short- and medium-haul air transport.

China is ready for the decline in world oil production.  The USA isn't even trying.

A Chinese friend of mine visited the plant where some of this rolling stock happens to be built. He was telling me that they also build the lower tech 150mph trains there also. He was told that the bogies for the higher speed trains, which are said to be 300mph capable by the way, are all aluminum plus much of the body work as well - like an aircaft. They have also abandoned the use of gearboxes in favor of equipping each wheel with its own drive motor, obviously to avoid reliability and maintenance issues.

It's possible a typical railcar will therefore have eight motors. Effectively you have the eqivalence of a single very large frame size motor because of the lower rpms, that is until you consider that at the high sevice speeds contemplated, these motors will probably be spinning at over 3000rpm.

When you factor in that only the leading and the trailing railcars will have significant aerodynamic losses it seems to make sense.

The compactness of the controls allows all the cars to be self sufficient in fact the official stressed that there is no separate control loco - all the cars carry passengers.

One other advantage is gradeability. Conventional trains are good only for 1%-2% grades. As you might expect these new trains can maintain speed at much higher inclines which offers possible savings on new track construction.
T2

Thanks for the information T2, it is always interesting to read some details. This makes a lot of sense from a lot of angles. Maybe we can learn something from them.

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