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|family = Long March |derivatives = |comparable = Delta IV, Atlas V, Falcon 9, H-IIA, Angara |status = In development |sites = Wenchang, Jiuquan, Xichang, Taiyuan |launches = |success = |fail = |partial = |other_outcome = |first = |last = |only = |payloads = |stagedata = }} The Long March 7 (), or Chang Zheng 7 as in pinyin, abbreviated LM-7 for export or CZ-7 within China, is a Chinese liquid-fuelled carrier rocket, which is being developed by the China Aerospace Science and Technology Corporation. Its maiden flight is scheduled for 2016. 〔 17 March 2015, China Outlines New Rockets, Space Station and Moon Plans ()〕 As one of the new generation rocket family of Long March 5, Long March 6 and Long March 7, it is to be a medium-heavy launch vehicle and fits the gap between the heavy Long March 5 family and the small-mid Long March 6 family. The structure will be based on the reliable man-rated Long March 2F rocket. Thus it will inherit the 3.35m-diameter core stage and 2.25m-diameter liquid rocket boosters. However, it will use LOX/kerosene fuel instead of the expensive and dangerous N2O4/UDMH fuels used previously in the Long March 2 rocket family. The new engine is borrowed from the engines developed for Long March 5, similar to Long March 6. The target is to build a more cost-effective and less environmentally damaging rocket family to replace today's Long March 2 and potentially Long March 3 serial to satisfy both domestic and international launch market needs.〔SINA News ''Sina'', 19 November 2010, ()〕 It will be capable of placing of payload into a sun-synchronous orbit.〔 With payloads in the range of 10-20 tons cited, it is likely to use two YF-100 first-stage engines at the 1st core stage, and one YF-100 engine for each of its 4 liquid rocket boosters.〔Bradley Perrett, ''Aviation Week'', 15 March 2010, Longer Marches〕〔Bradley Perrett, ''Aviation Week'', 5 March 2010〕 Bradley Perrett from Aviation Week writes that the description of Long March 7 corresponds with the mid-sized launcher that the China Academy of Launch Vehicle Technology detailed in 2007. The configuration displayed then had the two K3 core modules, four K2 boosters and a special 3-meter-dia. module, H3, that would presumably be an optional third stage for missions beyond low Earth orbit. But the range of payloads quoted for Long March 7, 10-20 tons, shows that it would be built with a variety of booster combinations. A single YF-100 would presumably provide second-stage propulsion. ==References== 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「Long March 7」の詳細全文を読む スポンサード リンク
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