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''Otto Hahn'' was one of only four nuclear-powered cargo vessels built to date. Planning of a German-built trade and research vessel to test the feasibility of nuclear power in civil service began in 1960 under the supervision of the German physicist Erich Bagge. Her nuclear reactor was deactivated in 1979 and replaced by a conventional diesel engine room. The ship was scrapped in 2009. ==History== ''Otto Hahn''s keel was laid down in 1963 by Howaldtswerke Deutsche Werft AG of Kiel. She was launched in 1964 and named in honour of Professor Otto Hahn, the German chemist and Nobel prize winner, who discovered the nuclear fission of uranium in 1938. The first captain of the ''Otto Hahn'' was Heinrich Lehmann-Willenbrock, a German U-boat ace of World War II. In 1968, the ship's 38-megawatt nuclear reactor was taken critical and sea trials began. In October of that year, NS ''Otto Hahn'' was certified for commercial freight transport and research. Configured to carry passengers and ore, ''Otto Hahn'' made her first port call in Safi, Morocco, loading a cargo of phosphate ores, in 1970. In 1972, after four years of operation, her reactor was refuelled. She had covered 250,000 nautical miles (463,000 km) on 22 kilograms of uranium.〔(NS Otto Hahn - Germany's Nuclear Powered Cargo Ship )〕 In 1979 ''Otto Hahn'' was deactivated. Her nuclear reactor and propulsion plant were removed and replaced by a conventional diesel engine room. In nine years, she had travelled 650,000 nautical miles (1,200,000 km) on nuclear power, visiting 33 ports in 22 countries. The containment vessel of the nuclear reactor is stored at the Helmholtz-Zentrum Geesthacht – Zentrum für Material- und Küstenforschung GmbH and the nuclear fuel in the US. 〔Bergedorfer Zeitung (())〕 In 1983, ''Otto Hahn'' was recommissioned as the container ship ''Trophy'' and leased into commercial service. On 19 November, she was renamed ''Norasia Susan''. She became the ''Norasia Helga'' in 1985, ''Hua Kang He'' in 1989, ''Anais'' in 1998, ''Tal'' in 1999 and finally ''Madre'' in the same year. Her last owner, from 2006, was the Liberian-based Domine Maritime Corporation, under the management of Alon Maritime Corporation of Athens, Greece. The ship was scrapped at Alang, India in 2009. Her original funnel is preserved at the Deutsches Schiffahrtsmuseum (German Maritime Museum) in Bremerhaven since the ship was retrofitted with diesel engines. 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「Otto Hahn (ship)」の詳細全文を読む スポンサード リンク
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