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HEMU-430X (standing for High-Speed Electric Multiple Unit 430 km/h eXperimental) is a South Korean high-speed train intended for a maximum speed of . On the last day of March 2013, it achieved 421.4 km/h in a test run, making South Korea the world's fourth country after France, Japan and China to develop a high-speed train running on conventional rail above 420 km/h.〔http://news.naver.com/main/read.nhn?mode=LSD&mid=sec&sid1=103&oid=001&aid=0006179734〕 The main new feature of the train compared to older South Korean high-speed trains is distributed traction. The foreseen commercial version of the train, tentatively named KTX-III, would enter regular service in 2015 with a top speed of . ==History== The original 1991 plan for the Korea Train Express (KTX) high-speed rail system foresaw an operating speed of to enable a travel time under two hours between Seoul in the northwest and Busan in the southeast of South Korea, the terminuses of the first line. Later, planned top speed was reduced to the maximum of existing high-speed trains on the market.〔 Korail then ordered high-speed trains on the basis of Alstom's TGV Réseau, the KTX-I, which started KTX service on April 1, 2004, and operate at a top speed increased slightly to in November 2007. In a project South Korean government research institutes and rail industry companies launched in 1996 to fully localise high-speed rail technology, the know-how gained in the technology transfer for the KTX-I was used as the basis to develop the experimental train HSR-350x, which was to be tested at up to so that the commercial version can have a top speed of . However, the maximum speed achieved in the HSR-350x tests was on December 16, 2004; and the design and top speeds of the commercial version, the KTX-II (KTX-Sancheon) were set to be the same as those for the KTX-I. The aim to develop commercial trains with a top speed of was taken up again in the project to build another experimental train, the HEMU-400X (''H''igh-speed ''E''lectric ''M''ultiple ''U''nit - ''400'' km/h e''X''periment), which was launched in July 2007. The six-year project schedule was originally set to last until July 2013, and involved of test runs with speeds reaching .〔(【引用サイトリンク】title=Project Overview )〕 The project is led by the Korean Railroad Research Institute (KRRI) and Hyundai Rotem, and also involves the Korea Institute of Construction & Transportation Evaluation and Planning (KICTEP),〔 20 other companies, 13 universities, and one other organisation.〔 The project budget was set at 97.11 billion won, with a government contribution of 69.2 billion won.〔 Following a call by Nam-Hee Chae, the president of the Korea Railroad Research Institute, for proposals for a generic name for Korean-made high-speed trains, on April 5, 2007, Chae announced the name Hanvit (Hangul: 한빛), which means a streak of intense light in Korean.〔 Under the new naming scheme, HEMU-400X is also called Hanvit 400.〔 The preliminary design was presented to the public in May 2009.〔 A full-scale mock-up of an end car was first shown in June 2009 at the RailLog 2009 exhibition in Busan. Detailed designs were presented in October 2010, when the prototype was expected to be completed in 2011 and start line tests in 2012. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「HEMU-430X」の詳細全文を読む スポンサード リンク
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