Long march five first flight: China Aerospace history from now will be divided into two sections: the first flight of the long march figure five rocket Chinese 20:40 on November 3rd, the first large-scale rocket "long 5" was launched in Hainan Wenchang spaceport. Long march five is milepost chinascarrier rockets renewal, improve our ability to enter the space, is the symbol of our country towards space power from space powers, China space history from now is divided into two sections. After the rocket development course of the end of the cold war, Europe and other developed countries to develop a new generation of carrier rockets, such as the United States, Atlas 4 and delta 4, Europe’s Ariane 5 rocket series and H-II in japan. Even the older generation is Europe and the United States rocket and ballistic missile programs are inextricably linked, and a new generation of rocket based on the use of space launch of people, not only the carrying capacity has been greatly improved, but also the technology and application of more advanced design, has higher reliability, safety and environmental performance. In 1980s, China’s first generation of rockets gradually completed development at the same time, China space also in the demonstration and development of brewing a new generation of carrier rockets, 863 plan is specifically referred to the development of new generation launch vehicles. Beginning in 1986, the Chinese aerospace has been demonstrated for a long time, carried on the preliminary research of the key technology, and completed the preliminary demonstration of the overall plan of the new generation of rockets. The early completion of key technical breakthrough, in 2000 and 2001 120 tons of liquid oxygen kerosene engine and 50 tons liquid hydrogen engine officially approved, entered the engineering development stage, and gradually began to heat ignition test. Development of the system on the right track after 2006, a new generation of carrier rockets of the pillar, it is known as big rocket Long March rocket number five officially approved, this time from a new generation of rocket start demonstration has been 20 years. Figure YF-100: 120 ton of LOX / kerosene engine was developed in March five rocket main engine of a new generation of carrier rockets, has completed a 120 ton YF-100 type oxygen kerosene engine and 50 ton YF-77 liquid hydrogen engine, and the test of 5 meters diameter of liquid oxygen and liquid hydrogen storage tank, respectively through the power system of 5 meters level and second level of hydrogen oxygen heat test. Also the big rocket booster separation test and fairing separation test and completed the test, whole rocket vibration characteristics of rocket in Asia’s largest vibration on the new tower, paving the way for the first flight of the rocket step by step. The main engine of YF-100 type long march five rocket boosters using 120 tons of liquid oxygen kerosene engine is also a new generation of rocket Long March six and March seven, September 20, 2015 and June 25, 2016, the long march rocket Long March six and seven rocket has the successful first flight, YF-100 LOX / kerosene engine through the actual flight test test, but also for the long march five rocket’s first flight has laid a solid foundation for success. Figure: 5 meters of low-temperature storage box static load test core was developed in September 20, 2015 five, March five rocket in Tianjin port of embarkation, Yuanwang 21 and 2)相关的主题文章:

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