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Type 904 dive tender is a class of Chinese dive tender in service with the People's Liberation Army Navy. Type 904 shares the same hull of Type 991II Youdian class cable layer, but the original design encountered difficulty when the development of domestic Chinese saturation diving support system stalled. Decision was made to import such system from abroad, with French system eventually selected. Consequently, the original Type 904 never went into production because the design had to be modified to accommodate the foreign saturation diving support system, and the modified design is designated as Type 904I. ==Type 904I== Type 904I is a slight variation of earlier Type 904 design with design change to incorporate machinery to handle foreign diver support system. The crane at the stern is capable of lifting 13-ton weight. Equipped with French SM358-Z dive support system, Type 904I can support divers up to a depth of two hundred meters. Designed by the 708th Institute of China State Shipbuilding Corporation, which is also more commonly known as China Shipbuilding and Oceanic Engineering Design Academy ((中国船舶及海洋工程设计研究 )) nowadays, Type 904I is capable of normal operations in sea state 3 and wind scale 5. Type 904I is named as Kan-Cha (Kancha, 勘查) I, meaning Exploration in Chinese. Specification:〔(Type 904I )〕 *Length (m): 69.9 *Width (m): 10.5 *Draft (m): 3.64 *Displacement (t): 1354.8 *Speed (kt): 13.5 *Propulsion: 2 diesel engines @ 1100 hp (809 kW) 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「Type 904 dive tender」の詳細全文を読む スポンサード リンク
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