March fifth rocket using newly-developed hydrogen-oxygen rocket engine
New in XI ' an, August 19 (reporter Tian Jin) space base is located in the XI ' an China Aerospace Science and technology group of 19th March fifth, six flew into kickoff. As the long fifth rocket that provides the core of the hospital level, second level, booster, auxiliary power systems, such as engines, developed two types of hydrogen-oxygen rocket engine as first and second main rocket motor, take flight test missions for the first time, will achieve a hydrogen-oxygen rocket engine technology developed by China.
March fifth rocket was active capacity, China largest and biggest rocket, 56.97 m high, core-level 5 meters in diameter, maximum takeoff mass of 867 tonnes, 13 ton capacity reached geosynchronous transfer orbit, low Earth orbit 25 tons. China uses nontoxic, pollution-free new generation of large launch vehicles propellant, the rocket is a milestone in China's launch vehicle upgrade and an important sign, shouldering the comprehensive strength of China's space, reached the international advanced level of historical mission is of great significance. The construction of China's future space station, lunar phase III projects and other deep space probes will be used for the implementation of the rocket.
According to reports, the newly developed two types of hydrogen-oxygen rocket engine as first and second main rocket motor, is the first to take flight test mission, will achieve a hydrogen-oxygen rocket engine technology developed by China. Boost 8 120 tonnes of liquid oxygen-kerosene engine, first flew in March Chang Zheng, sixth, seventh, tasks performed perfectly. For the upper stage provides two main engines, several upper stage attitude control engine to take a "space shuttle" will be precisely to send into orbit a payload.
Six Yuan President Liu Zhirang China Aerospace Science and technology group, said the long fifth rocket first flew on China's development in recent years is a new generation of rocket engine overall system assessment, which has sent more than more than 60 researchers test team to launch missions.
(Editors: Zhong Qinghui UN660)
2016-08-19 18:50:23
China News Network

长征五号火箭使用中国新研制氢氧发动机
中新社西安8月19日电  (记者 田进)位于西安航天基地的中国航天科技集团六院19日召开长征五号首飞进场动员会。该院为长征五号火箭提供芯一级、二级、助推、辅助动力系统等发动机，新研制的两种型号氢氧发动机作为火箭一、二级主动力，首次承担飞行试验任务，将实现中国氢氧发动机研制的技术跨越。
　　长征五号火箭是中国现役运载能力最大、规模最大的火箭，高56.97米，芯级直径5米，最大起飞质量867吨，运载能力分别达到地球同步转移轨道13吨，近地轨道25吨。作为中国采用无毒、无污染推进剂的新一代大型运载火箭，该型火箭也是中国运载火箭升级换代的里程碑和重要标志，肩负着提升中国航天运输系统综合实力，达到国际领先水平的历史重任，意义十分重大。中国未来空间站的建设、探月三期工程及其它深空探测的实施都将使用该型火箭。
　　据介绍，新研制的两种型号氢氧发动机作为火箭一、二级主动力，是首次承担飞行试验任务，将实现中国氢氧发动机研制的技术跨越。助推采用8台120吨液氧煤油发动机，在长征七号、长征六号首飞任务中表现完美。为上面级提供的两台主发动机、若干台上面级姿态控制发动机承担了“空间摆渡车”的作用，将有效载荷精确送到预定轨道。
　　中国航天科技集团六院院长刘志让说，长征五号火箭首飞是对中国近些年研制的新一代火箭发动机全面系统考核，该院已派出60余名科研人员组成的试验队伍前往发射场执行任务。
(责任编辑：钟庆辉 UN660)
2016-08-19 18:50:23
中国新闻网