Interpretation: for He Changzheng seventh choice in Hainan Wenchang launch | | aerospace _ long seventh, news

Launch yesterday to the long seventh, ready/news service

Legal evening news (reporters Li Wenji) at 8 o'clock in the morning yesterday, Wenchang, Hainan spaceport, smooth after about 3 hours later, performs first flight test tasks long seventh rocket launch platform and carry the load combinations of activities along the long Rails, safe, accurate and smooth transport to the launch Tower for the first time in front of the world with true. Reporters from the China manned space engineering office was informed that the long seventh plan from June 25 to 29th satellite launches, do the first flight test mission.

　　Undertake the task space cargo ship launch

Yesterday, the legal evening news (app ID:fzwb_52165216) reporters from the China manned space engineering office was informed that the long March launch vehicle and carrying the load, seventh flight products since the middle of May after entering, according to flight test launch procedures, completed Assembly testing and other technical aspects of the preparations.

At present, Hainan Wenchang space launch site system, monitoring and communication systems, landing systems, has completed the implementation of long seventh related to preparations for the launch vehicle missions for the first time. "The Assembly is the last pass, must be based on the highest standard requirements. "Up to seven final assembly technique head Choi Yun said.

Long seventh carrier rocket is a new generation of medium-level liquid bundled rockets, use nontoxic, pollution-free liquid oxygen/kerosene propellant, low Earth orbit 13.5 tons, 700-kilometer sun-synchronous orbit of 5.5 tons of carrying capacity. Long seventh is mainly used for launching low-Earth orbit or Sun-synchronous orbit payloads, will take on manned space missions for cargo ships, and affordable commercial space launch requirements and other spacecraft.

And the long fifth long-seventh is also affiliated to China Aerospace Science and Technology Corporation, the Chinese Academy of launch vehicle technology development.

"Every night work prior to 10:30 not to work overtime. "Deputy Director of the General Designer Liu Lidong in final assembly and test facility in the run up and down, this is his first model after graduation, worked for 8 years, he smiled and said," 8 years rubs a sword, there will be a good result. ”

　　International vertical transport technology lead

Legal evening news (app ID:fzwb_52165216) reporter learned the long seventh, one of the highlights is a vertical transport technologies. Lifting system of Hainan spaceport, the commander said, our country is the 2nd master "Mono differential turn walking technology" country, following the United States, the European Space Council, Japan 4th master "launch platform turns walking technology" countries (institutions). When the long seventh rocket when you embark on this track, means that flew into the countdown. Hainan Wenchang space launch site, and a new generation of Chinese medium-launch vehicles will be ushered in with "debut".

Then said the long seventh rocket with improved vertical Assembly, vertical tests, vertical transitions "new three-down" test pattern, shorten the preparation-time of rocket launching area, improve the reliability of launch. Overall this technology reached the international advanced level.

In addition, the vertical transport the long seventh carrier rocket on the tracks have turned 4 corner, before reaching the launch site. This is to and shared a long fifth launch vehicle transit tracks, covers an area of savings. If two straight, spoiled this ecological. Hainan Wenchang launch site design planning, the idea is that ecological and environmental protection. To lay such a Babel of green environmental-friendly, safe and reliable road, site builders have done a lot of hard work. Especially a new generation of rockets is heavyweight big demanding of track.

　　Why location Hainan? Sea Launch safer

Up to now, a total of 4 satellite launch centers in China, namely, the Jiuquan Satellite Launch Center and the Xichang satellite launch Center, the Taiyuan Satellite Launch Center and the Wenchang satellite launch Center. Why long seventh went all the way across the ocean, to the Wenchang launch latitude?

According to legal evening (micro-letter ID:fzwb_52165216) reporter understand, and for launches "Shenzhou" and is famous for its of Jiuquan Satellite Launches Center, and for exploration months Engineering named "Moon city" of Xichang satellite launches Center, and Success launches China first star meteorological satellite "cloud first," of Taiyuan Satellite Launches Center compared, Wenchang launches base is China first Marina launches base, is world Shang few of latitude launch site one of, has its obviously advantage.

The Chinese Academy of engineering academician, Chief Designer of the Shenzhou spacecraft Qi Faren, referred to the siting of Wenchang's reasons, said: "China train culvert is too narrow, can't transport large rocket, choosing Wenchang would have been different, could be made in Beijing, Tianjin shipment, transported by ship to Hainan. "It is understood that due to the limited railway tunnel diameter more than 3.5 m-diameter rocket will not pass the rail transport. Wenchang base in a coastal area near the port, will rocket this monster by sea transport issues.

Base offshore also means the rocket safer. Usually after the rocket, rocket boosters, and some arrows experience is split to form the rocket debris, Wenchang as the vast expanse of the South China Sea to the East of the launch site would greatly improve the security of rocket debris falling.

In addition, Hainan is the closest to the equator, the provinces with the lowest latitude, at the time of launch of the geosynchronous satellite, can take full advantage of the rotation of the Earth satellite need to consume less energy reach orbit only, you can save a lot of fuel consumption. Compared to the higher latitude such as Jiuquan, Xichang and Taiyuan launch Center, in the Wenchang launch Center to the same type of rocket thrust will increase by about 10%. In addition, because you can take full advantage of the rotation of the Earth's energy, saving satellites to bring energy, will be able to extend the satellite life.

It is reported that at present, Hainan Wenchang space launch site system, monitoring and communication systems, landing systems, has completed the implementation of long seventh related to preparations for the launch vehicle missions for the first time.

　　Trailer watch Hotel tickets are sold out

As far as the river evening news reported, China's new generation rocket long March seventh, opened to the public viewing for the first time launch the entire process. Wenchang city announced the 8 best viewing points, including hotels and beaches, hotel 388 Yuan ticket for sale, allowing visitors to live, watch Hotel tickets are sold out.

Hilton told Xinhua, in first-day guests can enjoy private channel leading to the coastal beaches, but the hotel rooms have been booked as early as around June 15, to start the day have all been booked, "villas are fully booked." Known as "the closest to rocket launching point a straight line from view point of" Lung Lau Zhen Tian fu Yun long Bay Resort, also first day all filled to capacity.

However, even if the guest is staying in the resort and want to get the best viewing experience you want to purchase tickets. Staff, hotel around 4 o'clock in the afternoon on the first day of martial law, when tickets available in a 4-story hotel's roof to watch the launch, from the launching base of 2.8 km, can be seen with the naked eye the rocket sent to the Tower, assembling, launching the whole process.

According to the reporter, 8 viewing points in the half in and around hotels, but who wants to get the best viewing experience still needs to purchase the tickets, in a 4-story hotel's roof to watch the launch, General of 288 Yuan tickets, VIP ticket 388 Yuan a piece.

　　Hainan over more than 50 public micro-signals and broadcast

In order to improve the dissemination of "the long seventh" lifted off South China Sea net start "first flew Wenchang in Hainan in the world" event, live hundreds of media at home and abroad hand in hand long seventh flight. By then, the network will join the South China Sea over more than 50 common live coverage of Wenchang Hainan, micro-Union public pomp of the rocket flight.

Micro-Union of Hainan (Hainan app ranking Union) as Hainan larger media publishing platform, platform resources throughout all cities and counties of Hainan, all members are local micro-letter number of the most influential, Hainan wider distribution, resource, has become a powerful publishing platform. Micro letter charts currently inputting all cities and counties in Hainan, Hainan's leading micro-letter public, nearly, platform fans user group of up to 5 million passengers.

Text/reporter Li Wenji

Responsible editor: Sun Ailin SN146

Article keywords:
Long seventh aerospace

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解读：为何长征七号选择在海南文昌发射|长征七号|航空航天_新闻资讯

长征七号昨天运至发射区，已准备就绪图/中新社

　　法制晚报讯（记者 李文姬）昨天上午8点，海南文昌航天发射场，经过平稳行驶约3小时后，执行首次飞行试验任务的长征七号运载火箭与搭载载荷组合体 的活动发射平台沿着长长的钢轨，安全、准确、流畅地转运至发射塔架，首次在世人面前露出真容。记者从中国载人航天工程办公室获悉，长征七号计划6月25日 至29日择机发射，执行首次飞行试验任务。

　　承担航天货运飞船等发射任务

　　昨日，法制晚报（微信ID：fzwb_52165216）记者从中国载人航天工程办公室获悉，长征七号运载火箭及其搭载载荷等飞行产品自5月中旬陆续进场后，按照飞行任务测试发射流程，相继完成了总装测试等技术区各项准备工作。

　　目前，海南文昌航天发射场系统、测控通信系统、着陆场系统，已完成执行长征七号运载火箭首次飞行任务的相关准备工作。“总装车间是最后一道关，必须要以最高标准来要求。”长七总装技术负责人崔蕴表示。

　　长 征七号运载火箭是新一代中型两级液体捆绑式运载火箭，采用无毒、无污染的液氧/煤油推进剂，具备近地轨道13.5吨、700千米太阳同步轨道5.5吨的运 载能力。长征七号主要用于发射近地轨道或太阳同步轨道有效载荷，将承担载人航天货运飞船等发射任务，未来也可以承担商业航天和国内其他航天器的发射需求。

　　和长征五号一样，长征七号也是由中国航天科技集团公司所属中国运载火箭技术研究院为主研制。

　　“每天晚上十点半前下班都算不上加班。”总体副主任设计师刘立东在总装测试厂房里跑上跑下，这是他毕业以后干的第一个型号，一干就是8年，他笑着说：“8年磨一剑，一定会有个好结果的。”

　　垂直转运技术国际领先

　　法 制晚报（微信ID：fzwb_52165216）记者了解到，长征七号一大亮点是拥有垂直转运技术。海南航天发射场吊装分系统指挥员张再经表示，我国是第 2个掌握“单轨差速转弯行走技术”的国家，也是继美国、欧空局、日本之后第4个掌握“发射平台转弯行走技术”的国家（机构）。当长征七号火箭踏上这个轨道 时，就意味着首飞进入了倒计时。海南文昌航天发射场和中国新一代中型运载火箭将一起迎来“首秀”。

　　张再经称，这次长征七号运载火箭采用改进后的垂直总装、垂直测试、垂直转场“新三垂”测发模式，缩短了火箭在发射区的射前准备时间，有效提高了发射可靠性。这项技术整体达到国际先进水平。

　　此外，此次垂直转运，长征七号运载火箭在铁轨上一共拐了4个弯，才到达发射阵地。这是因为要和长征五号运载火箭共用一个转运轨道，节省占地面积。如果做两段 直的，就把这一段的生态给破坏了。海南文昌发射场设计规划时，理念就是生态、环保。为了铺设这样一条绿色环保又安稳可靠的通天大道，发射场的建设者们付出 了大量心血。特别是新一代火箭都是重量级的大个子，对轨道的要求极高。

　　为何选址海南？近海发射更安全

　　截至目前，我国卫星发射中心一共有4个，分别是酒泉卫星发射中心、西昌卫星发射中心、太原卫星发射中心，以及文昌卫星发射中心。长征七号为什么要千里迢迢漂洋过海，到低纬度的文昌发射场发射？

　　据 法制晚报（微信ID：fzwb_52165216）记者了解，与因发射“神舟”而闻名的酒泉卫星发射中心、因探月工程得名“月亮城”的西昌卫星发射中心、 成功发射我国第一颗气象卫星“风云一号”的太原卫星发射中心相比，文昌发射基地是我国首个滨海发射基地，也是世界上为数不多的低纬度发射场之一，有其明显 优势。

　　中国工程院院士、神舟飞船总设计师戚发轫在讲到选址文昌的原因时说：“中国火车道涵洞太窄，运送不了大的火箭，选择文昌就不 同了，可以在北京制作，天津装运，通过船只运送到海南。”据了解，由于我国铁路隧道直径的限制，超过3.5米直径的火箭就不能通过铁路运输。文昌基地处在 滨海地区，临近的港口，通过海运方式将可以解决火箭这种庞然大物运输难的问题。

　　基地近海也意味着火箭发射更安全。通常在火箭升空后，火箭助推器和部分箭体会被剥离，从而形成火箭残骸，文昌发射场以东为浩渺无垠的南海，将大大提高火箭残骸坠落的安全性。

　　此 外，由于海南是我国距离赤道最近、纬度最低的省份，在发射地球同步轨道卫星时，可充分利用地球自转的卫星仅需消耗较少的能量到达预定轨道，可以节省大量的 燃料消耗。相较于酒泉、西昌、太原等较高纬度发射中心，在文昌发射基地同型号火箭推力将会增加10%左右。此外，由于可以充分利用地球自转的能量，从而节 省卫星自带能源，将可以延长卫星运行寿命。

　　据悉，目前，海南文昌航天发射场系统、测控通信系统、着陆场系统，已完成执行长征七号运载火箭首次飞行任务的相关准备工作。

　　花絮 观看点酒店门票已售罄

　　据《大江晚报》报道，中国新一代大火箭长征七号首次向公众开放观看升空全程。文昌市公布了8个最佳观看点，包括酒店和沙滩，有酒店出售388元一张的门票，让游客现场直击，观看点酒店的门票已经售罄。

　　希 尔顿酒店工作人员告诉记者，住店客人可在首发日享受通往沿海沙滩的专用通道，但酒店房间早在6月15日左右就已经陆续订出，到首发日期间已经全部客满， “别墅都订完了”。号称“距离火箭发射点直线距离最近的观看点”龙楼镇天福云龙湾度假村，首发日当天同样全部客满。

　　不过，即使是入住该度假村的客人，想要获得最佳观看体验仍需购买门票。工作人员介绍，度假村在首发日下午4点左右就会戒严，届时购票游客可在一栋4层酒店的楼顶观看发射，该地距发射基地2.8公里，能用肉眼看到火箭运送至发射塔、组装、发射的全部过程。

　　据记者了解，8个观看点中有一半在酒店及其周边，但如想要获得最佳观看体验仍需购买门票，在一栋4层酒店的楼顶观看发射，普通票288元一张，贵宾票388元一张。

　　海南50多家公众微信号同时直播

　　为了更好地传播“长征七号”的升空，南海网启动“文昌看首飞世界看海南”主题活动，携手国内外百家媒体直播长征七号首飞。届时，南海网将联合50多家海南微联盟公号共同直播报道文昌火箭首飞盛况。

　　海 南微联盟（海南微信排行榜联盟）作为海南较大的自媒体公号发布平台，平台资源遍布海南各个市县，各成员单位均为当地最有影响力的微信公号，已成为海南分布 较广、资源强大的信息发布平台。海南微信排行榜目前录入海南各市县最有影响力的微信公号近千家，平台粉丝用户群高达500万人次。

　　文/记者 李文姬

责任编辑：孙爱林 SN146

文章关键词：
长征七号 航空航天

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