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Nuke Firing non-stop! Today DF-31 modified for PEACEFUL use, fired on sea over Japs head! GPGT!

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https://mil.news.sina.com.cn/jssd/2019-06-05/doc-ihvhiqay3656869.shtml

中国首次海上发射运载火箭 以东风31为基础改进而来

中国首次海上发射运载火箭 以东风31为基础改进而来



9

作者署名:扬基帧察站
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今儿火箭军官方微博又发了个图,看样子是发东风-31系列
这两天海上颇不宁静。继火箭军和海军官方账号“争相认领”的“异常天象”之后,携带着吉林一号和娄星号两枚卫星的长征11号运载火箭,也将于2019年6月5日在位于黄海海域的海上平台上发射升空。
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发射点和一级落区位置,这也是一次正常安排好的发射计划,真不用联想
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长征11号并非东风-31的简单“军转民”,在改进中逐渐融入了更先进的技术。为了这次海上发射,长征11号又进行了进一步的改进。
虽然说到中国首次“运载火箭海上发射试验”,不少朋友们肯定会和我一样,首先想到的是1982年由6631型弹道导弹试验潜艇执行的“9182任务”;但自从1982年10月12日“9182任务”告捷以来,巨浪系列潜射弹道导弹的每次遥测弹随艇发射,均在水下而非水上进行,所以即使从字面意义上说,长征11号的这次发射,也确实是我国首次“运载火箭海‘上’发射试验”。
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“海上发射运载火箭”这个描述,一度还使得很多人以为6631型只具备水上发射能力
当初根据“二四协定”引进629型(北约称之为G级或“高尔夫”级)常规动力弹道导弹潜艇的建造技术时,中国海军的想法并非是后来那样作为试验潜艇使用,竟然还编列了一个多达40艘的建造规划。考虑到在中苏两国于1959年2月4日签署协定时,连苏联海军自己的第一艘629型还没有服役;对于当时的中国来说,铺开建造这种“先进装备”,自然是顺理成章的事情。
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之前说过,陈列在我校航天馆里的Р-11ФМ,基本就是一发“飞毛腿下海”
然而冷战的科技树爬的实在太快,1959年6月9日,美国海军第一艘弹道导弹核潜艇“乔治·华盛顿”号下水。在其携带的16枚能在水下发射的“北极星”固体燃料中程核导弹面前,629型(包括此时苏联正在建造中的658型弹道导弹核潜艇)的只能在水上发射的3枚Р-11ФМ液体燃料短程导弹,其技术一下子显得无比落后。
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毕竟是定义了现代SSBN为何物的经典
所以虽然Р-11ФМ导弹虽然仍按照协议于1960年交付,但上级在对其技术分析后并不打算仿制该型导弹,而此时大连造船厂为之打造的三个发射筒倒是已经造好了,这就使得1966年3月6631型(629型的国内代号)首艇1101艇交付海军时,该艇的指挥台围壳内还是顶着三个空空的发射筒。
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此时它实际上是一艘地位尴尬的潜艇——既无导弹攻击能力,也不适合执行常规鱼雷攻击潜艇的任务,当时还在建造中的2号艇为此一度计划改为034型常规动力鱼雷攻击潜艇
所幸这种尴尬并未持续太久,一年后海军主持召开092型弹道导弹核潜艇和巨龙-71型(也就是后来的巨浪-1)方案论证审查会议时,决定把服役以来一直“赋闲”的1101艇改装成为弹道导弹试验潜艇。前两期改装工程分别为水下发射模型弹和遥测弹而适配,分别于1972年7月和1982年6月完工交付,保障了9182任务的胜利完成。
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1982年10月12日和15日,200艇在水下相继成功发射巨浪-1遥6和遥7,后者准确命中预定海区
考虑到新弹直径明显大于Р-11ФМ(1.4米对0.88米),而且从一开始就立足于水下发射,其发射筒也远比后者复杂,因此海军决定在拆掉三个老发射筒之后只加装两个新发射筒,剩余位置用于加装测试设备。改装后的1101艇,除排水量下降了40多吨之外,总体性能基本不变。
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后来1101艇舷号改为200,和1701艇改为401大约同期
作为采用“冷发射”技术的潜射弹道导弹,巨浪-1采用了双基发射药燃气系统作为发射动力。这套在200艇上充分验证了可靠性的系统,保障了巨浪-1的模型弹和遥测弹均顺利弹射出水,为092型406艇后续投入“9188任务”——核潜艇水下发射运载火箭奠定了基础。
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9182任务后,海军对发射系统提出的改进意见
根据海军1975年的计划,本来还打算对该艇实施第三期改装工程,将200艇作为战斗艇和406艇一起投入战斗值班。但由于巨浪-1的实际威慑能力有限,增加一艘只能装两枚导弹的老旧常规动力发射平台的意义也不大,所以后来取消了对200艇的这一改装计划。
在9188任务之后,暂时没有试验任务的200艇转入封存状态。直到上世纪末巨浪-2潜射弹道导弹再次上马,200艇才于1999年被启封(同年094型首艇开工),并进行了真·第三期改装——为了能正常操作弹径达两米的巨浪-2,不仅要改发射筒,相当部分的控制设备、包括电缆管路等都要“动手术”。
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真·第三期改装后的200艇
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巨浪-2水下发射组图
在一次执行发射试验任务过程中,被弹出水面的弹体突然掉落,潜艇迅速掉深,产生巨大纵倾,震颤剧烈。艇长急忙连下十几个操纵口令,稳住潜艇,双车加速,脱离射点,使潜艇恢复安全航行。
传承“水下发射试验先锋艇”精神 中国军网2015.04.15
上面这段描述,只是200艇在参与巨浪-2水下发射试验中经历的若干险情之一。作为一艘当时已经服役近40年,多种配套设备和备件都缺乏库存的老艇,能够在这款并不成熟的新型导弹测试中屡屡化险为夷,与其艇员队极高的素质是分不开的。2010年,该艇荣膺中央军委授予的“水下发射试验先锋艇”荣誉称号。
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在094型能够投入使用之前,发射任务全要靠200艇
2013年,劳苦功高的200艇退役。随着同年10月,该艇将荣誉称号传给了32型试验潜艇201艇,其艇员队也随之继续在为国砺剑的水下战场拼搏。而根据央视之前的报道,已经退役多年的200艇也将进驻海博,与401艇共同向世人展示波澜壮阔的中国第一代核潜艇事业。
649d-hxyuaph4851784.jpg

现在唯一的疑问就是,200艇在进驻海博前,会不会为了保密而恢复到测试巨浪-1的状态。。。。。。



China’s first marine launch vehicle was improved on the basis of Dongfeng 31
China’s first marine launch vehicle was improved on the basis of Dongfeng 31
9

Author's signature: Yankee Frame Station

Today, the Rocket Army official Weibo has sent a picture, it looks like Dongfeng-31 series

The sea was not quite quiet in these two days. Following the "abnormal celestial" of the Rockets Army and the Navy's official account "come to claim", the Long March 11 carrier rocket carrying the two satellites, Jilin No.1 and Iridium, will also be located in the Yellow Sea on June 5, 2019. Launched on the offshore platform of the sea.

The launch point and the first-level landing position, this is also a normally scheduled launch plan, really no association

The Long March 11 is not a simple “military transfer to the people” of Dongfeng-31, and gradually incorporates more advanced technologies in the improvement. For this sea launch, the Long March 11 has undergone further improvements.

Although it is said that China’s first "launch launching rocket launch test", many friends will certainly be like me. The first thing that comes to mind is the "9182 mission" carried out by the 6631 ballistic missile test submarine in 1982; but since October 12, 1982 Since the "9182 mission" was successful, every telemetry bomb of the Julang series submarine-launched ballistic missiles was launched with the boat, both underwater and not on the water, so even in the literal sense, the launch of the Long March 11 It is indeed the first "launch test" on the "carrier rocket sea" in China.

The description of "sea launching rockets" once made many people think that the 6631 type only has water launching capability.

When the introduction of the 629 (NAT called G-class or "Golf" class) conventional power ballistic missile submarine under the "Second-Fourth Agreement" was introduced, the Chinese Navy’s idea was not used as a test submarine later, but it was also listed. A construction plan for up to 40 ships. Considering that when the two countries signed the agreement on February 4, 1959, even the Soviet Union’s own first 629 was not in service; for China at that time, the construction of such "advanced equipment" was naturally It is a matter of course.

As I said before, the Р-11ФМ displayed in the aerospace museum of our school is basically a "Flying leg to the sea"

However, the technology tree of the Cold War climbed too fast. On June 9, 1959, the US Navy’s first ballistic missile submarine, the "George Washington", was launched. In front of the 16 "North Star" solid fuel medium-range nuclear missiles that can be launched underwater, the 629 (including the 658 ballistic missile submarine currently under construction in the Soviet Union) can only be launched on the water. The -11ФМ liquid fuel short-range missile, its technology suddenly seems to be backward.

After all, it is a classic that defines what modern SSBN is.

Therefore, although the Р-11ФМ missile was still delivered in accordance with the agreement in 1960, the superior did not intend to imitate the missile after its technical analysis. At this time, the three launchers built by Dalian Shipyard had already been built. This resulted in the delivery of the first boat 1101 of the 6631 (Type 629 domestic code) to the Navy in March 1966, and there were three empty launchers in the shell of the boat.

At this time, it is actually a submarine with a status quo - neither missile attack capability nor the task of performing a conventional torpedo attack submarine. The No. 2 boat that was still under construction was once planned to be converted to the 034 conventional power. Torpedo attack submarine

Fortunately, this kind of embarrassment did not last long. After a year, the Navy presided over the 092-type ballistic missile submarine and the Julong-71 (also later JuLang-1) program demonstration review meeting, decided to have been idle since serving. The 1101 boat was converted into a ballistic missile test submarine. The first two phases of the modification project were adapted for underwater launching model bombs and telemetry bombs. They were delivered in July 1972 and June 1982 respectively, guaranteeing the completion of the 9182 mission.

On October 12 and 15, 1982, 200 boats successfully launched huge waves-1 and 6 and 7 at the underwater. The latter accurately hit the scheduled sea area.

Considering that the diameter of the new projectile is significantly larger than Р-11ФМ (1.4m vs. 0.88m), and it is based on underwater launch from the beginning, its launch tube is far more complicated than the latter, so the Navy decided to remove three old launchers. Only two new launchers are added afterwards, and the remaining positions are used to install test equipment. After the modification of the 1101 boat, the overall performance remained basically the same except that the displacement decreased by more than 40 tons.

Later, the 1101 boat number was changed to 200, and the 1701 boat was changed to 401.

As a submarine-launched ballistic missile using "cold launch" technology, Julang-1 uses a dual-base propellant gas system as its launching power. This system has fully verified the reliability of the 200-boat, ensuring that the model and telemetry bombs of the Julang-1 are successfully ejected, and the "9188 mission" is followed for the 092-406 406--the submarine underwater launch vehicle Foundation.

After the 9182 mission, the Navy’s improvements to the launch system

According to the Navy’s 1975 plan, it was intended to carry out the third phase of the conversion project for the boat, and put 200 boats as combat boats and 406 boats together for combat duty. However, due to the limited deterrent ability of JuLang-1, it is not meaningful to add an old conventional power transmission platform that can only hold two missiles. Therefore, this modification plan for 200 boats was cancelled.

After the 9188 mission, 200 boats that were not currently in the test mission were transferred to the archived state. Until the end of the last century, the Julang-2 submarine-launched ballistic missile was launched again, and the 200-boat was unsealed in 1999 (the first 094-type first boat was started in the same year), and the third phase of the modification was carried out - in order to operate normally up to two The huge wave of meters-2, not only to change the launch tube, but also a considerable part of the control equipment, including cable runs, must be "operated."

True · the third modified 200 boats

Julang-2 underwater launch group map

During the execution of the launch test mission, the projectile that was ejected from the water surface suddenly fell, and the submarine quickly fell deep, causing a huge trim and a sharp tremor. The captain hurriedly connected dozens of maneuvering passwords to stabilize the submarine, accelerate the two cars, and leave the shooting point to restore the submarine to safe navigation.

Inheriting the spirit of "underwater launch test pioneer boat" China Army Network 2015.04.15

The above description is just one of the dangers that 200 boats experienced in participating in the Julang-2 underwater launch test. As an old boat that has been in service for nearly 40 years, and a variety of supporting equipment and spare parts are lacking in inventory, it can be repeatedly used in this immature new missile test, and the high quality of its crew is inseparable. of. In 2010, the boat was awarded the honorary title of “Underwater Launch Test Pioneer Boat” by the Central Military Commission.

Before the Type 094 can be put into use, the launch mission depends on 200 boats.

In 2013, 200 hard-working boats were retired. In October of the same year, the boat passed the honorary title to the Type 32 pilot submarine 201, and its crew continued to fight for the underwater battlefield of the National Sword. According to previous reports from CCTV, 200 boats that have been retired for many years will also be stationed in Haibo, and together with 401 boats will show the world's first generation of nuclear submarines.

The only question now is whether the 200 boat will return to the test of the Hulang-1 for confidentiality before entering the Haibo. . . . . .
 

Tony Tan

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Illustration of Putin's Poseidon Nuke Torpedo courtesy call greeting NY
东风怒号巨浪飞:巨浪3服役后我军是否需要核鱼雷?

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2019.06.04 17:55:53


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  • 此前俄罗斯军方在宣传片中提到,波塞冬鱼雷是通过在敌方近海地区引爆造成带海啸来摧毁敌军的沿海城市的。但实际上根据美军的研究,不管是核爆炸还是陨石造成的海啸,都无法对海岸城市造成实质性的杀伤,因为“海啸的大部分能量都在大陆架上被分散和吸收了”。


http://slide.mil.news.sina.com.cn/h/slide_8_62085_72237.html#p=13

No. Julang Fei: Does the army need a nuclear torpedo after the service of Julang 3?


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2019.06.04 17:55:53



Earlier, the Russian military mentioned in the propaganda film that the Poseidon torpedo was a coastal city that destroyed the enemy by causing a tsunami in the enemy's offshore area. But in fact, according to US military research, neither the nuclear explosion nor the tsunami caused by meteorites can cause substantial damage to coastal cities because "most of the energy of the tsunami was dispersed and absorbed on the continental shelf."
 

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Xijinping is going to show Japs UFO tonight by flying DF-31 over their heads! Hari Rays Sepecial fireworks!

GVGT click here for video:

http://www.sohu.com/a/318661805_114988?spm=smpc.home.top-news2.1.15597076593685V1Gs74





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长征十一号运载火箭5日在黄海海域进行首次海上发射

2019-06-05 10:12



国家航天局:长征十一号运载火箭将进行首次海上发射

新京报快讯 据国家航天局官网消息,长征十一号运载火箭将于6月5日北京时间12:00左右在中国黄海海域实施海上发射试验,发射技术试验卫星捕风一号A、B星及五颗商业卫星。发射点位于东经121.19度、北纬34.90度。火箭按121.6度射向实施发射,火箭飞行过程二子级残骸落入北太平洋公海。

长征十一号运载火箭是我国研发的绿色固体火箭,火箭及搭载物不含肼类危险物,火箭残骸不会对周边海域造成危害。在本次试验前,火箭已经过6次成功飞行试验,技术成熟,可靠度高。

本次试验火箭飞行采用成熟的安全控制措施,实现火箭相关飞行段全过程受控。同时,火箭配置飞行中止系统,一旦出现异常情况,火箭将中止飞行。

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The Long March 11 launch vehicle made its first sea launch in the Yellow Sea on the 5th.
2019-06-05 10:12

National Space Administration: Long March 11 launch vehicle will launch its first sea launch

According to the official website of the National Aeronautics and Space Administration, the Long March 11 carrier rocket will conduct a sea launch test in the Yellow Sea area of China around 12:00 Beijing time on June 5, launching a technical test satellite to catch the wind No. 1 A and B stars. And five commercial satellites. The launch point is located at 121.19 degrees east longitude and 34.90 degrees north latitude. The rocket fired at 121.6 degrees and the second child wreckage fell into the North Pacific high seas during the rocket flight.

The Long March 11 launch vehicle is a green solid rocket developed by China. The rocket and its carrying objects do not contain cockroach dangerous objects. The rocket wreckage will not cause damage to the surrounding sea areas. Before this test, the rocket has passed 6 successful flight tests, with mature technology and high reliability.

This test rocket flight uses mature safety control measures to control the entire process of the rocket-related flight segment. At the same time, the rocket is equipped with a flight suspension system, and once an abnormal situation occurs, the rocket will suspend the flight.
 

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Xijinping fire DF-31 ICBM modified @ sea to launch 7 satellites at the same launching.





https://mil.news.sina.com.cn/china/2019-06-05/doc-ihvhiqay3699228.shtml

中国完成首次海上火箭发射 长征11号一箭七星升空

中国完成首次海上火箭发射 长征11号一箭七星升空



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中国航天完成首次海上发射 长征十一号一箭七星!

e4e6-hxyuaph5688768.png

[转!祝贺!#中国航天完成首次海上发射# 长征十一号一箭七星!]
d2a5-hxyuaph5706789.png

今天12时06分,我国在黄海海域使用长征十一号运载火箭(CZ-11 WEY号)成功完成“一箭七星”海上发射技术试验,这是我国首次在海上进行航天发射,填补了我国运载火箭海上发射空白,为我国快速进入太空提供了新的发射方式!
新华社青岛6月5日电(记者胡喆、萧海川)2019年6月5日12时6分,我国在黄海海域用长征十一号海射运载火箭,将技术试验卫星捕风一号A、B星及五颗商业卫星顺利送入预定轨道,试验取得成功,这是我国首次在海上实施运载火箭发射技术试验。
此次试验采用长征十一号海射型固体运载火箭(又名CZ-11 WEY号),以民用船舶为发射平台,探索了我国海上发射管理模式,验证了海上发射能力,有利于更好地满足不同倾角卫星发射需求。
专家介绍,运载火箭海上发射具有灵活性强、任务适应性好、发射经济性优等特点,可灵活选择发射点和落区,满足各种轨道有效载荷发射需求,为“一带一路”沿线提供更好的航天商业发射服务。
此次发射的捕风一号A、B卫星由中国航天科技集团有限公司所属中国空间技术研究院研制,将实现小卫星编队探测海面风场的突破,可提高全天候海面风场探测能力,提升我国台风监测和气象精准预报能力。由中国电子科技集团有限公司研制的两颗天象小卫星,是我国首个基于Ka频段星间链路的双星组网小卫星系统。陶行知教育一号卫星暨天启三号卫星,装有空间拍照相机和物联网通信载荷。此外,潇湘一号04星由天仪研究院研制,吉林一号高分03A卫星由长光卫星技术有限公司研制。
国家航天局负责固体运载火箭海上发射技术试验项目的组织管理协调,中国航天科技集团有限公司所属中国运载火箭技术研究院负责研制火箭,海工企业负责船舶发射平台,中国卫星发射测控系统部负责发射、测控任务组织实施。此次发射是长征系列运载火箭第306次发射。

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中国首次海上发射长征11火箭


China completes its first marine rocket launch, Long March 11
China completes its first marine rocket launch, Long March 11
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China Aerospace completed its first sea launch, the Long March 11th, an arrow and seven stars!

[转! congratulate! #中国航天 completed the first sea launch #长征十一号一箭七星! ]

At 12:06 today, China successfully completed the "One Arrow and Seven Stars" launch technology test using the Long March 11 launch vehicle (CZ-11 WEY) in the Yellow Sea. This is the first time that China has carried out a space launch at sea, filling the country. The launch of the rocket at sea has provided a new launch mode for China's rapid entry into space!

Xinhua News Agency, Qingdao, June 5 (Reporter Hu Wei, Xiao Haichuan) At 12:6 on June 5, 2019, China used the Long March 11 sea launch vehicle in the Yellow Sea to catch the wind. The B-star and five commercial satellites were successfully put into the orbit and the test was successful. This is the first time that China has carried out a launch vehicle launch technology test at sea.

In this test, the Long March 11 sea-launched solid-state launch vehicle (also known as CZ-11 WEY) was used to explore the maritime launch management mode of China with civilian ships as the launching platform, which verified the sea launching capability and facilitated better Meet the launch requirements of satellites with different tilt angles.

According to experts, the launching of the launch vehicle is characterized by flexibility, good adaptability to the task, and excellent economics of launch. It can flexibly select the launching point and the falling area to meet the needs of various rail payload launches, and provide better coverage along the “Belt and Road”. Aerospace commercial launch service.

The launch of the Wind Capture No. 1 A and B satellites was developed by the China Space Technology Research Institute of China Aerospace Science and Technology Corporation Ltd., which will realize the breakthrough of small satellite formations to detect the sea surface wind field, improve the all-weather sea surface wind field detection capability and enhance China. Typhoon monitoring and meteorological precision forecasting capabilities. The two small satellites developed by China Electronics Technology Group Co., Ltd. are the first dual-satellite small satellite system based on the Ka-band inter-satellite link in China. Tao Xingzhi Education No. 1 Satellite and Tianqi No. 3 Satellite are equipped with space cameras and IoT communication payloads. In addition, the Xiaoxiang No.1 04 star was developed by Tianyi Research Institute, and the Jilin No.1 high score 03A satellite was developed by Changguang Satellite Technology Co., Ltd.

The National Space Administration is responsible for the organization and management coordination of the marine launch vehicle technology pilot project of the solid rocket. The China Academy of Launch Vehicle Technology, affiliated to China Aerospace Science and Technology Corporation, is responsible for the development of the rocket. The offshore enterprise is responsible for the launching platform of the ship. The China Satellite Launch Measurement and Control System Department is responsible for the launch. The measurement and control tasks are organized and implemented. The launch was the 306th launch of the Long March series of launch vehicles.
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China's first sea launch Long March 11 rocket
 

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That is a copy of space -x.


Space-X is an IDIOT desperate to save USA's ass by experiment with TINY REVERSED LANDING ROCKET which has TINY USELESS HOAX PAYLOAD CAPACITY. A failure in the end because TINY payload. Why they are so desperate? Because Putin SANCTION THEM! Not selling them the huge powerful Russian Rocket Engines! Hence they have to struggle like dying dogs to REUSE EACH LAST ENGINE in their hands! Only about less than 20 are left in USA, cannot get any further!

ONLY CHINESE & RUSSIA can go to space with HUGE PAYLOAD after USA finish off last their RD-180 engine stocks.

Now ONLY CHINESE & RUSSIAN are the Space Payload launchers @ sea, USA is OUT!






http://slide.mil.news.sina.com.cn/k/slide_8_62085_72261.html#p=1

东风化作长征箭:长征11号火箭搞海上发射真的只为省钱?

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2019.06.06 10:23:47

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  • 6月5日我国在山东青岛市附近的黄海北部海域,成功利用民用万吨货轮改装的海上平台发射了长征11号运载火箭,使得我国成为继俄罗斯之后全球第二个拥有海上火箭发射技术的国家。这不仅是中国首次在海上发射运载火箭,也是全球自2014年以来首度海上发射卫星。此次长征11号火箭搭载的是吉林一号高分03A等七颗卫星。那么在已经拥有位于低纬度的海南文昌发射基地的情况下,我国为何还要发展海上发射技术,这在军事方面又有何应用价值?本期《出鞘》就来谈长征11号的首次海上发射。

东风化作长征箭:长征11号火箭搞海上发射真的只为省钱?

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  • 海上发射,其实就是将在陆地上的发射场搬到了大海之上,从而避开了由于土地问题造成的发射场位置影响,可以实现在全球任何海域中的最佳位置执行任务,让火箭在最有利的位置点火,从而降低卫星发射成本。通常情况下,海上发射的位置一般会选择在赤道地区,因为地球自转能在赤道上达到最大的旋转速度,在此发射火箭能得到最大的额外发射速度增量。

东风化作长征箭:长征11号火箭搞海上发射真的只为省钱?

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  • 除了增加发射速度增量外,火箭在赤道地区的海上执行发射任务,还能消除卫星轨道达到零度倾角所需要的轨道平面变化,使得火箭运载能力得到了进一步的提升。比如以火箭从北纬28.5度的卡纳维拉尔角发射为例,相比在赤道发射,其能达到地球静止轨道的载荷相对减少15% -20%。此外海上发射还能降低在人口密集地区发射的风险,避免造成不必要的人员财产损失。

东风化作长征箭:长征11号火箭搞海上发射真的只为省钱?

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  • 虽然我国文昌航天发射场,已经比较靠近赤道了,但是它的纬度还是在19度。有一些卫星发射任务,是需要倾角最好能到5度甚至更小,所以说即使是在海南发射,它对运载的要求也比较大。换句话说,只是大马拉一个小车,这是很不划算的,故而中国火箭研制人员一直在考虑将适当的小火箭机动灵活地拉到更靠近赤道的地方,来实现这种海上发射,以满足一定的卫星发射需求。

东风化作长征箭:长征11号火箭搞海上发射真的只为省钱?

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  • 当然海上发射能靠近赤道的“优势”也是相对而言的。虽然在外界认知中,普遍应该是发射场纬度越低,火箭所耗燃料越少,但事实上这仅是对地球同步轨道等而言的。对于太阳同步轨道,由于轨道自东向西逆行,纬度越低,自转带来的速度就越高,而火箭发射需要克服掉的速度就越高,这种情况下是要更耗费燃料的。一般太阳同步轨道倾角在97到102度之间,火箭发射场的纬度越大,载荷飞到目标逆行轨道的难度其实也就越低。


东风化作长征箭:长征11号火箭搞海上发射真的只为省钱?

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  • 其实自上世纪60年代起,美俄两国就曾做过多次海上平台发射试验,后来美国因为拥有好几个靠近赤道的发射基地,就干脆放弃了这一技术,只剩国土偏居高纬度的俄罗斯继续坚持了下来。俄罗斯天顶3号SL火箭的海上发射能力如今已经达到在赤道附近,能发射6吨多重的载荷到同步转移轨道的地步,可说是非常强悍了。但实际上,这家公司在20多年的营业中仅发射了30多次,而且在2007年还发生过一次火箭爆炸事故,生意可以说是相当惨淡。

东风化作长征箭:长征11号火箭搞海上发射真的只为省钱?

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  • 俄罗斯招揽不到生意是因为,虽然利用海上发射平台能够以更低的成本将载荷送上倾角较低的中高轨道,但这种低倾角轨道的问题在于,尽管卫星对赤道附近地区的访问率较高,可赤道地区的国家不过也就是一些东南亚、中非和中美的小国罢了,他们的发射需求实在太低。所以这几十年来,俄罗斯的海上发射一直只能承接一些拜科努尔发射场丢下的残羹冷炙。
东风化作长征箭:长征11号火箭搞海上发射真的只为省钱?

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  • 一般海上发射需要一个较为风平浪静的海况。对于液体火箭来说,测试、起竖和加注的全流程一般都需要一个平稳的环境,而且这套流程往往要长达数天之久,海上发射对后勤保障要求极高。而固体火箭由于集成度高,燃料已事先装填,无需加注,测试、发射流程简单,只要在射前很短的时间内起竖就行。所以世界上固体火箭的发射准备时间普遍会比液体火箭短一个数量级,以长征11号为例,它发射准备时间就缩减到了24小时以内。

东风化作长征箭:长征11号火箭搞海上发射真的只为省钱?

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  • 由于上述原因,相比于俄罗斯海上发射使用的是液体火箭,中国此次选择了使用固体燃料的长征11号火箭。固体火箭在储存性方面,较传统的液体火箭具有一定优势,同时较小的起飞重量,也使其对发射平台的影响降低。比如起飞重量120吨的长征11号火箭,使用一艘平板驳船类的平台即可完成发射任务。不过虽然中国使用固体火箭规避了一些海上发射的难点,但是长征11号火箭的搭载能力相对不足的问题却仍是无法规避的。


东风化作长征箭:长征11号火箭搞海上发射真的只为省钱?

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  • 目前中国已经开始研制可在海上发射的更大型固体运载火箭了,比如长征11号火箭的改进型。据悉改进型火箭的一级发动机由直径2米提升到了2.65米,推力也由120吨提升到了200吨,装药量则由35吨提升到了71吨。此外发动机的壳体也由原先的钢壳体,发展为高性能纤维缠绕复合材料壳体,这使得发动机综合性能更为先进、运载能力大幅提升,预计改进型火箭在700公里太阳同步轨道的运载能力可从400公斤左右提升到1.5吨左右。
东风化作长征箭:长征11号火箭搞海上发射真的只为省钱?

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  • 此外海上发射在选用固体火箭或液体火箭时,其对发射平台振动等要求也不同。以俄罗斯海上发射公司所使用的天顶3号SL火箭为例,它为了确保安全,不仅使用了液氧和煤油作为第一级发动机的燃料,同时在执行发射任务时,用于发射火箭的“奥德赛”平台也需要加注15000吨海水,从而使排水量从3.1万吨暴增到了4.6万吨,以符合海上发射时的振动要求。而中国由于采用固体火箭,对海上发射平台的要求降低了不少,一般仅用大型半潜式驳船进行简易改装即可。

东风化作长征箭:长征11号火箭搞海上发射真的只为省钱?

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  • 当然固体火箭在海上发射同样也存在不少问题。正如前面所提到的,低纬度发射只有在载荷准备运行于地球同步轨道的情况下才能降低成本,而用固体火箭来打地球同步轨道却太过“奢侈”,要么火箭本身要5级起步,要么载荷重量就低得可怜。俄罗斯解决的办法,是直接硬上使用液体燃料的天顶3号火箭,但这又会导致前面所提到的液体火箭海上发射的劣势了,况且目前我国似乎也没有能在海上发射平台发射的液体火箭型号。

东风化作长征箭:长征11号火箭搞海上发射真的只为省钱?

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  • 那么海上发射技术有没有什么军事意涵呢?我们不妨再拿出俄罗斯发展海上发射技术的案例。俄罗斯曾利用海上发射技术,在1998年7月利用“新莫斯科夫斯克”号德尔塔IV级战略核潜艇发射了一枚无风-1型运载火箭,成功将德国研制的两枚通信卫星发射升空,而这次发射也成为了人类历史上首次从核潜艇上进行的水下卫星发射。值得一提的是,据《俄罗斯报》5月8日报道称,当时负责指挥发射的“新莫斯科夫斯克”号潜艇艇长尼古拉·叶夫梅诺夫,还在近日被任命为了俄罗斯海军的新任总司令。

东风化作长征箭:长征11号火箭搞海上发射真的只为省钱?

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  • 无风-1型运载火箭由R-29RM潜射导弹改装,主要是将原来安装核弹头的地方改用来安装卫星,此外原来用于制导的天线也被改成发射卫星所需要的测控装置,控制导弹飞行的软件也做了调整。不过由于核潜艇弹舱有限,火箭的体积不能设计的太大,火箭的运载能力因此也大大受限,无风-1型火箭的两次发射中,最重的卫星也只有77公斤。面对当今动辄几吨重的各类卫星,这个运载能力实在是捉襟见肘,这也是该火箭仅进行过两次发射的原因(另一次是在2006年发射了一枚用于地球磁场变化与地震研究的卫星)。

东风化作长征箭:长征11号火箭搞海上发射真的只为省钱?

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  • 从俄罗斯的案例来看,尽管效益不彰,海上发射技术还是具有一定的军事价值的,尤其对于战时保障各类作战卫星。况且长征11号火箭本身就是我国用于紧急发射、战时发射、应急补射卫星的核心火箭,是我军太空卫星网络的重要机动力量。以苏联为例,他们在阿富汗战争时曾在战区上空紧急部署了一套卫星通讯系统,用于各部队尤其是运输机部队的通讯问题。同样我国利用长征11号火箭,一天内也能在太空建立一个小型卫星星座,保障作战。

东风化作长征箭:长征11号火箭搞海上发射真的只为省钱?

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  • 而海上发射技术的用途则在于,一方面在陆基发射场和陆基应急火箭被摧毁的情况下,可以利用潜射火箭来补充,另一方面则是能避开美军关岛基地对我低纬度轨道卫星发射时的拦截。考虑到长征11号火箭本身就是东风31洲际弹道导弹的“军转民”型号,而东风31洲际弹道导弹则与巨浪2潜射弹道导弹有着牵扯不清的技术关系。我军完全可以利用掌握的长征11号火箭的海上发射技术,对巨浪2/3潜射导弹进行部分改动,从而使094战略核潜艇和未来的096战略核潜艇具备一定战时应急补发卫星的能力。

东风化作长征箭:长征11号火箭搞海上发射真的只为省钱?

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  • 当然上述看法目前仅是猜测,不排除我国将长征11号火箭搬到海上,也仅仅是出于经济效益考虑而已。毕竟相对于SpaceX公司能免费租用发射场(人员费用仍自己出,约占发射成本的一成左右)不同的是,我国火箭发射单位使用发射场不仅程序相对繁琐,而且成本偏高(有说法指其占发射成本近四成)。长征11号的海上发射技术成熟后,显然能在我国微小卫星市场蓬勃发展的当下,进一步降低市场准入门槛。那么本期《出鞘》就到这里,我们下期再见。






Dongfeng turned into a long march arrow: Is the Long March 11 rocket launching a sea launch really only to save money?


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On June 5, China successfully launched the Long March 11 launch vehicle on the offshore platform of the Yellow Sea near Qingdao, Shandong Province, making China the second country in the world to have a marine rocket launch technology after Russia. . This is not only the first launch of a launch vehicle at sea in China, but also the world's first marine launch satellite since 2014. The Long March 11 rocket is equipped with seven satellites, such as the Jilin No. 1 high score 03A. Then, in the case of already having a Hainan Wenchang launching base at a low latitude, why should China develop sea launch technology, and what is its application value in military affairs? This issue of "Sheathing" comes to talk about the first sea launch of the Long March 11.


Dongfeng turned into a long march arrow: Is the Long March 11 rocket launching a sea launch really only to save money?


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The launch of the sea is actually to move the launch site on the land to the sea, thus avoiding the influence of the launch site caused by the land problem, and can achieve the best position in any sea area in the world, so that the rocket is the most Favorable position ignition, thereby reducing satellite launch costs. Normally, the location of the sea launch is generally chosen in the equator, because the Earth's rotation can reach the maximum rotational speed on the equator, where the rocket can get the maximum additional launch speed increment.


Dongfeng turned into a long march arrow: Is the Long March 11 rocket launching a sea launch really only to save money?


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In addition to increasing the launch speed increment, the rocket performs the launch mission at sea in the equatorial region, and it can also eliminate the orbital plane changes required for the satellite orbit to reach a zero dip angle, which further enhances the rocket carrying capacity. For example, the rocket is launched from the Cape Canaveral angle of 28.5 degrees north latitude. Compared with the launch at the equator, the load that can reach the geostationary orbit is reduced by 15%-20%. In addition, marine launches can reduce the risk of launching in densely populated areas and avoid unnecessary loss of property.


Dongfeng turned into a long march arrow: Is the Long March 11 rocket launching a sea launch really only to save money?


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Although the Wenchang Space Launch Site in China is relatively close to the equator, its latitude is still at 19 degrees. There are some satellite launch missions that require a dip angle of up to 5 degrees or less, so even if it is launched in Hainan, it has a greater requirement for carrying. In other words, it’s just a big deal for a big horse. So Chinese rocket developers have been thinking about moving the appropriate small rockets closer to the equator to achieve this kind of sea launch. Meet certain satellite launch requirements.


Dongfeng turned into a long march arrow: Is the Long March 11 rocket launching a sea launch really only to save money?


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Of course, the "advantage" of sea launching near the equator is also relatively speaking. Although in the outside world, it is generally said that the lower the latitude of the launch site, the less fuel the rocket consumes, but in fact it is only for the geosynchronous orbit. For the sun-synchronous orbit, since the orbit is retrograde from east to west, the lower the latitude, the higher the speed of rotation, and the higher the speed at which the rocket launch needs to be overcome. In this case, it is more fuel-intensive. Generally, the sun-synchronous orbital inclination angle is between 97 and 102 degrees. The greater the latitude of the rocket launching field, the lower the difficulty of the load flying to the target retrograde orbit.



Dongfeng turned into a long march arrow: Is the Long March 11 rocket launching a sea launch really only to save money?


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In fact, since the 1960s, the United States and Russia have conducted many offshore platform launch tests. Later, because the United States had several launching bases close to the equator, it simply gave up this technology, leaving only the country at a high latitude. Russia continues to persist. The sea launch capability of the Russian Zenith 3 SL rocket has now reached the point where it can launch 6 tons of multiple loads to the synchronous transfer orbit near the equator. It is very powerful. But in fact, the company only launched more than 30 times in more than 20 years of business, and there was a rocket explosion in 2007, the business can be said to be quite bleak.


Dongfeng turned into a long march arrow: Is the Long March 11 rocket launching a sea launch really only to save money?


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Russia does not attract business because, although the use of offshore launch platforms can send loads at lower cost to mid-high orbits with lower dip angles, the problem with such low-angle orbits is that although satellites have lower access rates to areas near the equator High, but the countries in the equatorial region are just some small countries in Southeast Asia, Central Africa and Central America. Their launch demand is too low. Therefore, in the past few decades, Russia’s sea launches have been able to undertake only some of the wreckage left behind by the Baikonur launch site.

Dongfeng turned into a long march arrow: Is the Long March 11 rocket launching a sea launch really only to save money?


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Generally, sea launches require a relatively calm sea state. For liquid rockets, the entire process of testing, erection and filling generally requires a stable environment, and this process often takes several days, and marine launches require extremely high logistical support. Due to the high integration of the solid rocket, the fuel has been pre-filled, no need to raise, and the test and launch process is simple, as long as it is vertical in a short time before shooting. Therefore, the launch time of solid rockets in the world is generally an order of magnitude shorter than that of liquid rockets. Taking the Long March 11 as an example, its launch preparation time has been reduced to less than 24 hours.


Dongfeng turned into a long march arrow: Is the Long March 11 rocket launching a sea launch really only to save money?


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For the above reasons, China has chosen the Long March 11 rocket using solid fuel compared to the Russian rocket launch. Solid rockets have certain advantages over traditional liquid rockets in terms of storage, and the small take-off weight also reduces the impact on the launching platform. For example, the Long March 11 rocket with a take-off weight of 120 tons can be launched using a platform of a flat barge. However, although China uses solid rockets to circumvent some of the difficulties of launching at sea, the problem of relatively insufficient carrying capacity of the Long March 11 rocket is still unavoidable.



Dongfeng turned into a long march arrow: Is the Long March 11 rocket launching a sea launch really only to save money?


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At present, China has begun to develop larger solid-state launch vehicles that can be launched at sea, such as the improved version of the Long March 11 rocket. It is reported that the first-class engine of the improved rocket has been upgraded from 2 meters in diameter to 2.65 meters, the thrust has been increased from 120 tons to 200 tons, and the charge has been increased from 35 tons to 71 tons. In addition, the engine's casing has also evolved from the original steel casing to a high-performance fiber-wound composite casing, which makes the engine's comprehensive performance more advanced and its carrying capacity greatly improved. It is expected that the improved rocket will be carried in the 700-km sun-synchronous orbit. The capacity can be increased from around 400 kg to about 1.5 tons.

Dongfeng turned into a long march arrow: Is the Long March 11 rocket launching a sea launch really only to save money?


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In addition, the launch of the sea is based on the choice of solid rocket or liquid fire.
 

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Another RARE ROCKET ARMY GESTURE for Shangri-La Dialog, they scrambled 10 DF-21D for simultaneous firing to show what can happen at South China Sea to Dotard's Navy. 10 units of DF-21 simultaneously at a single time means whole aircraft carrier battle group wiped out by entire fleet with about 10mins only.

Nobody else in this world is capable of this attack. ONLY PLA ROCKET ARMY can do Ballistic Missile ANTI-SHIP.

This video of firing drill was deliberately carried out during Shangri-La Dialog in Pee Sai and immediately put online. Together with the JL-3 SLBM fired from 096 nuke sub at sea, same time.

Message is clear, we hit your homeland and your Pacific Fleet at the same time, you want to try? Dotard must watch this video:

https://mil.news.sina.com.cn/china/2019-06-05/doc-ihvhiews6834487.shtml

中国火箭军罕见亮剑 10枚东风-21D导弹高高竖起

2019年06月05日 07:30 央视



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视频-中国火箭军罕见亮剑 10枚东风-21D高高竖起


原标题:安全感爆棚!中国火箭军罕见亮剑,10枚东风-21D高高竖起
近日,在火箭军发布的一则视频短片中,出现了10枚东风-21D弹道导弹高高竖起的画面。作为我国导弹领域的杰出之作,该导弹具有攻击大中型水面舰艇的能力,是我国非对称作战的杀手锏武器。


Https://mil.news.sina.com.cn/china/2019-06-05/doc-ihvhiews6834487.shtml


Chinese rocket army rare bright sword 10 Dongfeng-21D missiles erected high


June 05, 2019 07:30 CCTV



6,923




Video - China Rocket Army rare bright sword 10 Dongfeng-21D high up


Original title: The sense of security is bursting! Chinese rocket army rare sword, 10 Dongfeng-21D high erect

Recently, in a video clip released by the Rockets, 10 Dongfeng-21D ballistic missiles appeared high. As an outstanding work in China's missile field, the missile has the ability to attack large and medium-sized surface ships, and is the killer weapon for asymmetric warfare in China.


Rocket Army actually have bases near SCS within range that they can fire such a barrage without leave their base, just from within base can kill a fleet in SCS. Fire and go back to cookhouse to Makan Celebrate Victory within 10mins.
 

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https://mil.news.sina.com.cn/jssd/2019-06-06/doc-ihvhiews7057088.shtml

中国在海上发射"民用版东风31" 还抢下一项世界第一

2019年06月06日 09:07 新浪军事



95

6月5日,长征-11WEY运载火箭,从海上胜利发射升空!
这标志着中国航天迈入了海上发射运载火箭的全新时代!
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长征-11WEY火箭,将七颗卫星同时送入预定轨道,发射获得成功。这令中国成为世界上第一个完全独立实施海上运载火箭发射任务的国家。此前的相关海上发射,是由涉及多国的联合企业完成的。
中国航天突破自身技术空白,未来将可令部分运载火箭从最佳地理位置起飞,获得最佳收益!
长征-11火箭目前是中国火箭家族中唯一的固体运载火箭,由中国航天科技集团公司负责研制,被戏称为东风41的民用版本。
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长征-11运载火箭最新完成的海上发射,能够将运载火箭安排在低纬度赤道海域进行,最大限度发挥地球自转速度带来的优势,使用较少燃料,就可以发射较多的载荷。同一枚火箭,在赤道附近发射,可利用地球自转速度的增加,获得更强的运载能力,“成本”降低。
海上发射也有助于特定卫星迅速进入地球静止轨道,减少卫星需要改变轨道倾角所消耗的燃料,提高卫星的在轨寿命。
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海上发射较为安全可靠,避免火箭危及人口稠密地区。同时,它的安全性远高于使用飞机携带小型运载火箭、进行空中发射的全新模式,也能适应更重的火箭和载荷,风险要小得多。
我国商业航天蓬勃发展,未来10年国内商业小卫星有1700颗的发射需求,国外商业小卫星需求多达6200颗。海上发射可避免陆上发射场任务过多造成的“瓶颈”,提高总体发射能力,降低经济成本和技术难度。
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长征-11WEY火箭推力120吨,可将500公斤载荷,发射到500公里太阳同步轨道。它的定位是小型全固体燃料运载火箭,因此能够实现陆地机动发射、海上机动发射,反应时间远短于液体运载火箭,可快速进入空间。在需要时,可满足应急发射需求,例如迅速补充损坏的卫星、向空间站提供紧急补给等等。
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长征11发射准备周期不超过72小时,最短发射时间可压缩到24小时以内。长征-11的这种快速能力,成为世界上发射准备周期最短的发射工具之一。
它主要包括固体运载火箭、发射支持系统两个部分。从第三枚测试火箭开始,长征11通过创新,显著改善卫星适应性、运载能力、可靠性、经济性,已经开始执行商业盈利任务。长征11无需固定发射塔,可采用轮式发射车机动发射,也可海上发射。
这一最新突破,再次证明了中国航天发展的巨大飞跃!(作者署名:空中世界加特林)


China launches "civil version Dongfeng 31" at sea and also grabs one of the world's first
June 06, 2019 09:07 Sina Military
95

On June 5th, the Long March -11WEY launch vehicle was launched from the sea and successfully launched!

This marks a new era for China Aerospace to enter the launch vehicle of the sea!

The Long March -11WEY rocket sent seven satellites into the orbit at the same time, and the launch was successful. This made China the first country in the world to fully implement the mission of launching a marine launch vehicle. Previous related sea launches were completed by joint ventures involving multiple countries.

China Aerospace will break through its own technical gap, and in the future, some of the launch vehicles will be taken off from the best geographical location to get the best benefits!

The Long March-11 rocket is currently the only solid-state launch vehicle in the Chinese rocket family. It was developed by China Aerospace Science and Technology Corporation and was dubbed the civilian version of Dongfeng 41.

The newly completed sea launch of the Long March-11 launch vehicle can arrange the launch vehicle in the low latitude equatorial seas to maximize the advantages of the Earth's rotation speed, and use less fuel to launch more loads. The same rocket, launched near the equator, can use the increase in the Earth's rotation speed to obtain a stronger carrying capacity, and the "cost" is reduced.

Offshore launches also facilitate the rapid entry of specific satellites into the geostationary orbit, reducing the need for satellites to change the fuel consumed by the orbital inclination and increasing the satellite's on-orbit life.

Marine launches are safer and more reliable, avoiding rockets endangering densely populated areas. At the same time, it is much safer than using a new model of carrying a small launch vehicle and launching it in the air. It can also accommodate heavier rockets and loads, with much less risk.

China's commercial space is booming. In the next 10 years, there will be 1,700 domestic commercial small satellites, and foreign commercial small satellites will need 6,200. The sea launch can avoid the “bottleneck” caused by too many tasks on the land launch site, improve the overall launch capability, and reduce economic costs and technical difficulties.

The Long March -11WEY rocket has a thrust of 120 tons and can be used to launch 500 kilograms of payload into a 500-km sun-synchronous orbit. It is positioned as a small all-solid fuel launch vehicle, enabling land mobile launches, marine maneuver launches, and response times much shorter than liquid launch vehicles for quick access to space. Emergency launch requirements can be met when needed, such as quickly replenishing damaged satellites, providing emergency recharge to space stations, and so on.

The Long March 11 launch preparation period does not exceed 72 hours, and the shortest launch time can be compressed to within 24 hours. This rapid capability of the Long March-11 has become one of the world's shortest launching tools for launch preparation.

It mainly includes two parts: solid rocket launcher and launch support system. Starting with the third test rocket, the Long March 11 has significantly improved satellite adaptability, carrying capacity, reliability, and economy through innovation, and has begun to implement commercial profit tasks. The Long March 11 does not require a fixed launch tower and can be launched by a wheeled launch vehicle or at sea.

This latest breakthrough proves once again the huge leap in China's space development! (Author's signature: Air World Gatlin)
 

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http://slide.mil.news.sina.com.cn/k/slide_8_400_72248.html#p=1

东风31改型再创佳绩!长征11号完成中国首次海上发射

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  • ff95-hxyuaph5757447.jpg
  • 6月5日12时06分,我国在黄海使用长征十一号运载火箭成功完成“一箭七星”海上发射技术试验,这是我国首次在海上进行航天发射,填补了我国运载火箭海上发射空白,为我国快速进入太空提供了新的发射方式!
东风31改型再创佳绩!长征11号完成中国首次海上发射

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  • 新浪军事深度:2018年,中国航天研制的“长征-11”型运载火箭,将走下发射场,登上发射船,执行中国首次海上发射任务。2月27日,记者从中国航天科技集团获悉,长征十一号运载火箭今年将执行5次发射,包括4次陆上发射和1次海上发射。

东风31改型再创佳绩!长征11号完成中国首次海上发射

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  • 海上发射,将在陆地上的发射场搬到了茫茫大洋之上,从而避开了由于土地问题造成的发射场位置影响,可以实现在全球任何海域中的最佳位置执行任务,让火箭在最有利的位置点火,将卫星送入轨道。通常,海上发射的位置一般会选择在赤道地区,


东风31改型再创佳绩!长征11号完成中国首次海上发射

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  • 035b-hxyuaph5757473.jpg
  • 由于地球自转在赤道上达到最大的旋转速度,在此发射能得到额外的发射速度增量。在海上执行发射任务,消除了地球静止轨道零度倾角需要的轨道平面变化,运载能力得到了显著的提升。同样的火箭从北纬28.5度的卡纳维拉尔角发射,能达到地球静止轨道的载荷将减少15% -20%。

东风31改型再创佳绩!长征11号完成中国首次海上发射

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  • 海上发射降低了在人口密集地区发射的风险,有更好的第三方安全性。由于没有与其他发射系统的冲突,附近也几乎完全没有限制发射的船只或空中交通。

东风31改型再创佳绩!长征11号完成中国首次海上发射

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  • 因此海上发射可以达成任意轨道倾角,例如“海上发射”公司的发射平台,可用轨道倾角范围覆盖了卡纳维拉尔角和范登堡空军基地两个发射场合起来才能得到的轨道倾角范围。


东风31改型再创佳绩!长征11号完成中国首次海上发射

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  • 但是海上发射对火箭的检测、燃料,发射平台的振动等都有着极高的要求,“海上发射”公司使用的“天顶”-3SL运载火箭为了确保安全,使用了液氧和煤油作为第一级发动机的燃料。


东风31改型再创佳绩!长征11号完成中国首次海上发射

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  • 同时,在执行发射任务时,用于发射火箭的“奥德赛”平台需要加注15000吨海水,使其排水量从3.1万吨暴增至4.6万吨,以符合海上发射时的振动要求。

东风31改型再创佳绩!长征11号完成中国首次海上发射

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  • 在这方面,中国另辟蹊径,走上了另一条不同的道路。中国在海上发射方面,选择了使用固体燃料的“长征-11”型运载火箭。



东风31改型再创佳绩!长征11号完成中国首次海上发射

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  • 固体火箭所使用的固体燃料在储存性方面,较传统的液体燃料具有很大的优势,同时相对较小的起飞重量,使其对发射平台的影响降低到相对容易接受的程度。
东风31改型再创佳绩!长征11号完成中国首次海上发射

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  • 起飞重量120吨的“长征-11”型运载火箭,使用一艘平板驳船类的平台即可完成发射任务,最大起飞重量高达800余吨的“天顶”-3SL运载火箭就需要数万吨压舱海水才能保证发射平台的平稳。


东风31改型再创佳绩!长征11号完成中国首次海上发射

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  • 虽然中国使用固体燃料运载火箭规避了一些海上发射的难点,但是“长征-11”运载火箭搭载能力相对不足的问题却是无法规避的。目前,中国航天的海上发射,
东风31改型再创佳绩!长征11号完成中国首次海上发射

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  • adc0-hxyuaph5757655.jpg
  • 还是以积累经验为主,同时对在海上发射更大型的运载火箭展开预研。在不久的将来,中国航天在海上发射方面,会有一个飞跃式的发展。(作者署名:迷彩派)




Http://slide.mil.news.sina.com.cn/k/slide_8_400_72248.html#p=1


Dongfeng 31 modified to create new achievements! Long March 11 completes China's first sea launch


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At 12:06 on June 5, China successfully completed the "One Arrow and Seven Stars" launching technology test using the Long March No. 11 launch vehicle in the Yellow Sea. This is the first time that China launched a space launch at sea, filling the gap of China's launch vehicle sea launch. Providing a new launch mode for China's rapid entry into space!

Dongfeng 31 modified to create new achievements! Long March 11 completes China's first sea launch


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Sina military depth: In 2018, the "Long March-11" launch vehicle developed by China Aerospace will walk off the launch site, board the launch ship, and carry out China's first sea launch mission. On February 27, the reporter learned from China Aerospace Science and Technology Group that the Long March 11 launch vehicle will perform five launches this year, including four land launches and one sea launch.


Dongfeng 31 modified to create new achievements! Long March 11 completes China's first sea launch


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The launch of the sea will move the launch site on the land to the vast ocean, thus avoiding the influence of the launch site caused by the land problem, and it can achieve the best position in any sea area in the world, making the rocket the most favorable. The position is ignited and the satellite is put into orbit. Usually, the location of the sea launch is generally chosen in the equator.



Dongfeng 31 modified to create new achievements! Long March 11 completes China's first sea launch


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Since the Earth's rotation reaches its maximum rotational speed on the equator, an additional emission rate increment can be obtained here. The launching mission at sea eliminates the orbital plane changes required for the zero-degree inclination of the geostationary orbit, and the carrying capacity has been significantly improved. The same rocket is launched from Cape Canaveral at 28.5 degrees north latitude, and the load that can reach the geostationary orbit will be reduced by 15%-20%.


Dongfeng 31 modified to create new achievements! Long March 11 completes China's first sea launch


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Offshore launches reduce the risk of launching in densely populated areas and have better third-party security. Since there is no conflict with other launch systems, there is almost no limit to the launching of ships or air traffic nearby.


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Therefore, the sea launch can achieve any orbital inclination, such as the launch platform of the "Sea Launch" company, and the range of orbital inclination can be obtained by covering the two launches of Cape Canaveral and Vandenberg Air Force Base.



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However, sea launches have extremely high requirements for rocket detection, fuel, and vibration of the launching platform. The "Zenith"-3SL launch vehicle used by the "Sea Launch" company uses liquid oxygen and kerosene as the first to ensure safety. The fuel of the class engine.



Dongfeng 31 modified to create new achievements! Long March 11 completes China's first sea launch


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At the same time, in the implementation of the launch mission, the "Odyssey" platform used to launch the rocket needs to be filled with 15,000 tons of seawater to increase its displacement from 31,000 tons to 46,000 tons to meet the vibration requirements during sea launch.


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In this regard, China has taken another path and embarked on another different path. China has chosen the "Long March-11" launch vehicle using solid fuel for sea launches.




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The solid fuel used in solid rockets has a greater advantage in storage than traditional liquid fuels, while the relatively small takeoff weight reduces the impact on the launching platform to a relatively acceptable level.

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The "Long March-11" launch vehicle with a take-off weight of 120 tons can be launched using a platform of a flat barge. The zenith-3SL launch vehicle with a maximum takeoff weight of 800 tons requires tens of thousands of tons of pressure. The seawater in the tank can ensure the stability of the launching platform.



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Although China's use of solid fuel launch vehicles has circumvented some of the difficulties of launching at sea, the problem of relatively insufficient carrying capacity of the "Long March-11" launch vehicle is unavoidable. At present, the launch of China’s space,

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It is still based on the accumulation of experience, and at the same time pre-study on the launch of larger launch vehicles at sea. In the near future, China Aerospace will have a leap-forward development in launching at sea. (Author's signature: Camouflage)
 
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