The CALT Long March 7 medium-heavy space launcher will go into production in 2014, according to current plans, completing a new family of Chinese rockets with new fuels and engines. Sized between the Long March 5 and 6, the new rocket will offer up to 720 tons (1,590,000 lb.) of liftoff thrust from six engines fed by liquid oxygen and kerosene. The first stage of the Long March 7 will have two YF100 engines, CALT Vice President Hao Zhaoping tells Aviation Week. The YF100 is already known to have a thrust of 120 tons.
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机译：根据目前的计划，CALT长征3月7日中型空间发射器将于2014年投入生产，从而完成了一系列新型的中国火箭，其中使用了新的燃料和发动机。新火箭的尺寸定在3月5日至6月6日之间，它将通过由液态氧和煤油供油的6台发动机提供高达720吨（1,590,000磅）的起升推力。 CALT副总裁郝兆平告诉《航空周刊》，Long March 7的第一阶段将配备两台YF100发动机。 YF100的推力为120吨。
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