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DF-5
The Dongfeng 5() (, literally "East Wind 5") or DF-5 is a three stage Chinese ICBM. It has a length of 32.6 m and a diameter of 3.35 m. It weighs in at 183,000 kilograms and it has an estimated range of 12,000 to 15,000 kilometers. The DF-5 had its first flight in 1971 and was in operational service 10 years later. One of the limitations of the missile is that it takes between 30 and 60 minutes to fuel (and thus cannot launch on warning). The DF-5 is due to be replaced by the DF-41.〔(China Stumbles Forward ) - Strategypage.com, December 19, 2012〕 Around 2015, the newest variant DF-5B force are believed to have received a MIRV upgrade, according to ''Business Insider'' with DF-5B: "China has the ability to deliver nuclear warheads nearly anywhere on earth (outside of South America, at least)".〔http://www.businessinsider.com.au/china-previewed-new-ballistic-missiles-2015-9〕
==History==
The DF-5 was designed under the leadership of Tu Shou'e () at the China Academy of Launch Technology (CALT); Li Xu'e) () served as deputy chief designer. The missile was produced at the China's Factory 211 (Capital Astronautics Co. (), also known as the Capital Machine Shop ()).
The DF-5 was first flight tested in 1971, with final tests into the Pacific Ocean in May 1980. Two silo-based missiles were put into 'trial operational deployment' in 1981.〔 It had a range of 10,000 to 12,000 km which allowed it to threaten the western portions of the United States. Beginning in 1986 the Chinese started developing the improved DF-5A,〔 with range increased to over 15,000 km and a more accurate guidance system. The DF-5A upgrade increased the throw-weight of the system from 3,000 kg to 3,200 kg.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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