China launches biggest rocket diameter than rocket 50%| long fifth _ news

A few days ago, China's new generation of large launch vehicles-the long fifth in Wenchang, Hainan spaceport from Assembly and test facility was successfully completed to the launching Tower vertical transshipment. Now, the "rocket" flight has entered the countdown stage, preparations were already in place.

Long fifth core-level, which is the main part of the Middle up to 5 meters in diameter, larger than your average rocket body diameter 50%, physically strong, nicknamed the "big five". The launch mission is to examine the "fat five" design the correctness and reliability of the flight, as well as matches between the rocket and the launch site. As the rocket's "top priority", the "fat five" what does that mean?

"Rocket" flight has entered the countdown stage

Excellent launch success rate of long March family history about 97%

From 1970, long first launch date, implemented a total of 237 launches China's long March series of launch vehicles, launch success rate as high as 97%. From the international point of view, from 1957 to 2015, the worldwide launch, more than 5,400 times average emission rate of 91.5%.

If you compared the long March series of launch vehicles to a large family, members of his family now has 17, advances achieved from room temperature to the cryogenic propulsion, from in-line to the bundle, from one single arrow more stars, capacity covered by high, medium and low orbits, to meet emission requirements for different loads.

As the "five" why it's better than "brothers" became available later?

However, as the rocket engine technology and human space exploration, the world's major space powers have launched a new generation of large launch vehicles, such as the European Ariane 5 and the United States of the Delta 4 and Atlas 5. China's existing long March family original members in the face of future manned space stations, Lunar and fire works and a series of major aerospace engineering tasks, the flesh is weak. Long March family urgently needs new one "big" members carry the burden.

Even if it is not the first 20-year development period, just after the creation of Li "arrow", the "fat five" spent more than 10 years. Supposed members of the new generation, the "big brother" and "fat five" were the first to start developing, than long sixth and the long seventh but these "brothers", later "married", signifying its difficulty, risk of high.

The "fat five" what is innovation?

Along the way the road will not be smooth, tough and "fat five" is greater than current rockets carrying capacity increased by 2.5 times more than double, but also with other family members to share their research and innovation results in the process.

"A new generation of launch vehicles as a combination series, and modular design, from the highest levels of the State plans the overall development of China's launch vehicles, General technical requirements for using as much as possible, reducing development costs. "The Chief Designer of the long fifth, Li said.

Like, "fat five" with to of thrust big, and than spike of 120 tons liquid oxygen kerosene engine, had was foreign experts think "(China) can design out, also impossible manufacturing out", now has became China new rocket all different configuration rocket total with of based power plant, in zhiqian March sixth,, and March seventh, rocket flew task in the, are has had excellent performance. For example, the "fat five" Advanced "new" on test mode and also took the lead in three dimensional digital design has been successfully used on the long seventh.

Not only that, the long fifth also contributed to China's new generation of carrier rocket base and Wenchang in Hainan spaceport facilities construction, promote scientific and technological progress in China-related technology, has laid a solid foundation for the sustainable development of China's space launch vehicle technology.

"The development not only of the long fifth marks the upgrading of long March series of rockets, and led the entire development platform and industry updates on the construction of China's new generation of nontoxic, pollution-free carrier rockets of the spectrum play traction and radiation, of China's carrier rocket technology represents a major step forward as a whole. "Said Yang Baohua, Deputy General Manager of China Aerospace Science and Technology Corporation.

More valuable is that experience as a major project for next-generation launch vehicle, youngest of five development teams as representatives of a new generation of aerospace personnel also grew up. This is China's largest asset.

The "fat five" is the basis and prerequisite for a large number of future space missions

Turn over a table of China's space industry is more than 10 years of planning, the rhythm more intense-

In 2017, "day boat first" cargo spacecraft launch;

Around 2017, the goddess of the Moon, fifth lunar return flight;

Expected in 2018, Chang fourth will achieve at the far side of the Moon fell month probe and, if successful, China will become the first country to reach the far side of the Moon;

Around 2018, the pilot the launch space station core module;

In 2020, the start the Mars exploration;

By around 2020, China will build its own independent space station;

By 2020, built for new generation launch vehicle system, complete the development of the long eighth and achieved its first flight, breaking the key technology of heavy launch vehicle engineering;

And by 2020, compass global navigation satellite system will be built, providing global coverage of the high precision and reliable positioning, navigation and timing services;

2024 retired at the international space station, China could be the world's only country with space station;

Around 2025, becoming a space power, China;

Expected before and after 2027-2030, the rocket achieved its maiden flight ... ...

Some of these objectives by the "fat five" direct execution of missions, some of which are in the new generation of carrier rocket driven by all linked together. Enough to see, long fifth China spaceflight in the future a large number of major science and technology projects and tasks of the Foundation and premise.

Responsible editor: Xiang Changming SN123

Article keywords:
Long fifth

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中国发射最大火箭 直径比一般火箭大50%|长征五号_新闻资讯

　　日前，中国新一代大型运载火箭——长征五号在海南文昌航天发射场顺利完成了从总装测试厂房到发射塔架的垂直转运。现在，“大火箭”首飞已经进入了倒计时阶段，各项准备工作已经就绪。

　　长征五号的芯级，也就是中间的主体部分直径达5米，比一般的火箭主体直径大了50%，体格壮实，绰号“胖五”。这次发射任务主要是检验“胖五”设计的正确性、飞行的可靠性，以及发射场和火箭之间的匹配性。作为运载火箭的“重中之重”，“胖五”究竟意味着什么呢？

“大火箭”首飞已经进入倒计时阶段

　　长征家族历史成绩优秀 发射成功率高达97%左右

　　从1970年长征一号运载火箭发射至今，中国长征系列运载火箭共实施了237次发射，发射成功率高达97%左右。从国际上来看，从1957年到2015年，全球共发射5400多次，平均发射成功率是91.5%。

　　如果将长征系列运载火箭比作一个大家族，现在其家庭成员已经有17个了，实现了从常温推进到低温推进、从串联到捆绑、从一箭单星到一箭多星，运载能力覆盖高、中、低各种轨道，能够满足不同载荷的发射要求。

　　作为“五哥” 为啥它比“弟弟们”面世要晚？

　　但是，随着火箭发动机技术的日益成熟和人类对宇宙空间的不断探索，世界主要航天强国纷纷推出新一代大型运载火箭，比如欧洲的阿里安5、美国的德尔塔4和宇宙神5。而中国现有的长征家族原有的成员在面对未来载人空间站、探月和探火工程等一系列重大航天工程任务，有些心有余而力不足。长征家族迫切需要新引入一位“大块头”成员扛起重担。

　　哪怕不算前20年的研制期，仅仅是立项后的砺“箭”，“胖五”就花了10年时间。按说在新一代成员里，“老大哥”“胖五”是最先启动研制的，但是却比长征六号和长征七号这些“兄弟们”更晚“成家立业”，足见其难度之大、风险之高。

　　“胖五”有哪些创新成果？

　　虽然一路走来道路并不平坦，坚韧不拔的“胖五”却比现役火箭的运载能力提升2.5倍以上，还能够与其他家族新成员共享其研制过程中产生的创新成果。

　　“新一代运载火箭按照系列化、组合化、模块化思想进行设计，从国家最高层面规划中国运载火箭的整体发展，尽可能多地采用通用技术，降低研制成本。”长征五号总设计师李东说。

　　比如，“胖五”用到的推力大、比冲高的120吨液氧煤油发动机，曾被外国专家认为“（中国）能设计出来，也不可能制造出来”，现在已经成为中国新一代运载火箭各个不同构型火箭共用的基础动力装置，在之前长征六号、长征七号火箭首飞任务中，都有过出色表现。再比如，“胖五”先进的“新三垂”测发模式和全三维数字化设计也都率先在长征七号上进行了成功应用。

　　不仅如此，长征五号还推动了中国新一代运载火箭产业化基地和海南文昌航天发射场等配套设施的建设，促进了中国相关技术领域的科技进步，为中国航天运载技术的可持续发展奠定了坚实基础。

　　“长征五号的研制不仅标志着长征系列火箭的升级换代，而且带动了整个研制平台和产业链的更新，对构建中国新一代无毒、无污染运载火箭的型谱发挥牵引和辐射作用，使中国运载火箭的整体技术水平向前迈进了一大步。”中国航天科技集团公司副总经理杨保华说。

　　更为宝贵的是，通过新一代运载火箭这样重大工程的历练，以年轻的长五研制团队为代表的新一代航天人才也成长起来。这是中国航天最大的财富。

　　“胖五”是中国一大批未来航天任务的基础和前提

　　翻开中国航天事业未来十几年的规划表，节奏更加紧张——

　　2017年，“天舟一号”货运飞船升空；

　　2017年前后，嫦娥五号实现绕月返回飞行；

　　预计2018年，嫦娥四号将实现在月球背面落月探测，如果成功，中国将成为到达月球背面的第一个国家；

　　2018年前后，发射空间站试验性核心舱；

　　2020年，启动火星探测；

　　到2020年左右，中国将建成自己的独立空间站；

　　力争到2020年，基本建成新一代运载火箭系统，完成长征八号的研制并实现其首飞，突破重型运载火箭工程关键技术；

　　到2020年前后，将建成北斗全球卫星导航系统，提供覆盖全球的高精度、高可靠的定位、导航和授时服务；

　　2024年国际空间站退役时，中国可能成为全球唯一拥有空间站的国家；

　　2025年左右，中国成为航天强国；

　　预计2027-2030年前后，重型火箭实现首飞……

　　而上述目标有些由“胖五”直接执行发射任务，有些是在新一代运载火箭的推动下实现，整个计划环环相扣。足以见得，长征五号是中国航天未来一大批重大科技专项和任务的基础和前提。

责任编辑：向昌明 SN123

文章关键词：
长征五号

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