Tuesday, June 23, 2009

More Chinese Netizen Commentary on Anti-Ship Ballistic Missile Program


A reader directed my attention toward another source of chatter from the Chinese bulletin board system (BBS) regarding China’s anti-ship ballistic missile (ASBM) program. I had excluded it in the previous post on the subject simply because it seems to be a mix of hyperbole and aspiration. However, even with the hyperbole and aspiration, the article could offer some insights when matched against authoritative sources. Because the article has been so widely proliferated around Chinese cyberspace, including on official government sites, it may be worth attention.

Post by "Marine Major" (陆战队少校), the original article seems to have first appeared on iFeng BBS on August 14, 2008. In the following weeks, it spread to other major BBS sites (Huanqiu, Tiexue, Chnqiang, etc), including onto the Xinhua network, the official government news agency. The article continues to be reposted on major BBS sites until today. Interestingly enough, the same article appeared on the Lianyungang city government website for a period of time until it was removed. It’s unclear if the author is the original source.

The article alleges that China has completed R&D on a new variant of the ASBM, referred to as the DF-25B. Presumably because the DF-25 didn’t have sufficient missile defense countermeasures, the PLA put forth the upgrade requirement in 2006. The author describes the new DF-25 variant as flying a depressed trajectory at an altitude of 20-30 kilometers. The “mother body,” presumably a third stage, houses multiple independently guided warheads. The third stage itself has a reserve propellant tank and incorporates electronic countermeasures as it bears down on a carrier at hypersonic speed.

Specifics in this particular BBS article should be taken with a grain of salt. However, as pointed out in the previous post, authoritative industry sources do indicate that significant R&D is being carried out into a boost-glide capability, and there is significant interest into developing a range of flight vehicles that operate in the upper atmosphere between 20-100 kilometers in altitude. The chart to the right shows one relatively basic glide control concept from an industry source (the DF-21D reference appears to be added on later by the BBS service that posted the industry article).

The China Aerospace Science and Technology Corporation (CASC) First Academy (China Academy of Launch Technology) stood up a new research institute in late 2008 that focuses on nothing but upper atmosphere flight vehicles (sources available upon request). In addition, authoritative publications indicate an interest in a submarine-launch ASBM.

Keeping in the mind that some of the technical terms are challenging, below is a rough paraphrased translation of the article. I posted the Chinese as well for interested readers:

China’s New Aircraft Carrier Killer Revealed

中国最新航母克星“航母末日” 嚗光

August 14, 2008
http://blog.ifeng.com/article/1643766.html

弹道导弹打航母的构想大约是出自1996年台海危机。当时,美国派2个航母战斗群部署在台海周围以军事吓阻我们处理“两国论”引发的台海危机的军事行动。

The concept for an anti-ship ballistic missile (ASBM) comes from the 1996 Taiwan Strait crisis. At that time, the US deployed two aircraft carrier battle groups off the coast of Taiwan as a means to deter our military operations intended to manage Taiwan’s “two states theory.”

当时我军只拥有歼-7、歼-8等二代战机和从俄罗斯进口的第一批26架苏-27。而美军航母即使按中等威胁区实施威慑的态势,其F-14A“雄猫”战斗机(现在已经退役,被F-18E/F取代)2个中队24架、F/A-18A“大黄蜂”战斗/攻击队24架,加起来也有近50架三代战机。就是说一艘航母的三代战机已经是当时我们所拥有三代战机总和的2倍!

At that time, our military had only two types of second generation fighters – the F-7 and F-8, as well as 26 Russian Su-27s. But United States military was able to assemble two squadrons of F-14As (already retired and replaced by F-18s), and a squadron of F/A-18As for a total of nearly 50 aircraft. This is about double the number of our third generation aircraft.

中国海军建立了以空潜快炮为主的海防体系,然而共和国的决策者们在海湾战争后猛然发现,苦心孤诣40年的心血已经无法继续信任下去,世纪末战争中美国海军以射程1000海里的巡航导弹告诉全世界,你们的海岸——不设防。如果说海湾战争对中国军队还只是震撼,96年的台海冲突则给了我们切肤之痛。没有远洋打击力量,更不具备远海防御能力,堂堂三百万人民解放军竟然无法对抗美国海军的两个航母战斗群。近海防御海军的窘迫就在于无法脱离陆地独立行动,不具备远洋攻防作战体系,不能构筑海上钢铁长城御敌于国门之外,只能作为陆军的附属保卫区区十二海里领海线。

The PLA Navy established an air and sub-surface maritime defense system, but decision makers suddenly realized that after 40 years of devoting resources to the military, there’s no defense against U.S. 1000-kilometer range cruise missiles – “your coastal defense sucks” (to paraphrase). If one would characterize the Gulf War as a shock, then the 1996 crisis was hari-kari (meaning extremely painful). Our coastal Navy couldn’t get away from the land or establish a long range interdiction and defensive operational system, and only could come up with an Army-affiliated 12 nautical mile defense zone.

可以说,美国人调集了两个航母编队,极大地刺激了改革开放以来一直让“军队要忍耐”的中国政府。所以,中国提出了一套新的理论,这就是99年的超限战理论。“弹道导弹打航母”便是其中之一。

One could say that the deployment of two aircraft carrier battle groups marked the end of the Chinese government’s policy of military restraint since the reform and opening of China.

最新研制成功的东风-25弹道导弹,可以运载一个或几个分导弹头,弹头内装有被动红外导引装置。弹头重返大气层后,可以进行机动以精确对准目标。

The DF-25 missile has been successfully researched and developed, is able to launch one or a number of warheads that are equipped with passive infrared terminal guidance. After warheads reenter the atmosphere, they are able to maneuver accurately toward the target.

但是美国海军计划对所有装备“宙斯盾”系统的62艘驱逐舰和22艘巡洋舰进行升级,使其具备弹道导弹防御能力。根据美军计划,到2009年美国海军将拥有18艘装备“弹道导弹防御型宙斯盾”系统的战舰,其中包括15艘驱逐舰和3艘巡洋舰。五角大楼水面战委员会主席维克托•吉尔罗伊少将15日表示,18艘反导宙斯盾舰远不够用,因此计划首先对所有的“阿利•伯克”级导弹驱逐舰进行升级,使其具备拦截弹道导弹的能力。随后22艘导弹巡洋舰的升级也将被列上日程。这对地区和平、尤其是东亚和台海安全构成了严重威胁。

But the U.S. Navy planned to upgrade Aegis system, including 62 destroyers and 22 cruisers for missile defense. According to the Navy plans, it will have 18 sea-based missile defense equipped ships, including 15 destroyers and 3 cruisers. A U.S. Navy committee argued that all Arleigh Burke’s should be upgraded. This presents a serious threat to regional peace, especially for security in East Asia and the Taiwan Strait.

从理论上说,如果美国全部宙斯盾战舰作战系统都升级为“导弹防御型宙斯盾”,这样一支反导舰队集中部署在一个方向,将可以同时拦截500枚以上的中程弹道导弹。

Theoretically speaking, if America assembled all its Aegis assets together, they could intercept more than 500 medium range ballistic missiles at one time.

从拦截区域上看,海基拦截系统覆盖面积是“爱国者-3”反导系统的100倍;从技术成熟度上来看,目前海基拦截系统是美国所有能拦截中程弹道导弹的反导系统中拦截成功率最高的一种。
From the perspective of defended area, sea-based missile defenses cover an area 100 times larger than that of PAC-3. In terms of technology, sea-based missile defenses have had the highest success rates.

所以,东风-25弹道导弹采用了“隐形战术弹头”概念,以减少
弹头在实施分导开始阶段的“雷达反应红外线” 特征,使得东风25导弹更加难以拦击。但要确保突破宙斯盾反导系统从而达到击沉航母的目的,还是有很大难度的。

Therefore, the DF-25 incorporates a “tactical stealth warhead” concept in order to reduce the “radar reaction infrared” (awkward wording in Chinese that is hard to translate), when the warhead is in the initial phase of payload separation, and make the DF-25 hard to intercept. But it’s still difficult to ensure the ability of missile to penetrate the Aegis missile defense system and destroy the carrier target.

故中国人民解放军在2006年提出了进一步研制新型弹道导弹,争取在3年内装备3种新型弹(目前定型为:
东风25乙 东风26甲 东风26乙三型)。要求采用低轨分导式,既导弹升空后保持在20千米至30千米的低轨道飞行,不必重返大气层,使美军装备的“宙斯盾”海基拦截系统没有充足的反应拦截时间。

In accordance with a 2006 PLA proposal, R&D began on new ballistic missiles to be finished within three years (finalized designs include the DF-25B, DF-26A, and DF-26B). The requirement is to adopt a low trajectory with separable warheads, maintain a 20-30 kilometer altitude in order to not give Aegis destroyers sufficient time to respond.

{{Note: In a version posted on Sina.com a few days after the iFeng article, the language stresses a DF-26 sea-launch variant, rather than the surface-launched DF-25:

其中东风25乙为路基型,东风26甲为海基型,东风26乙的具体情况还不太清楚。


Roughly translated, “the DF-25B is ground-launched, the DF-26A is sea-launched, and specific details of the DF-26B aren’t clear.” }}


野战陆基型低轨分导式“航母末日”反航母导弹系统(即东风25乙)的部分性能指标:

Following is a general description for the ground-based, depressed trajectory, multiple warhead, “carrier killer” (literally “final days of the aircraft carrier”) ASBM system (specifically the DF-25B):

1.弹头数量:6枚分弹头

1. Number of warheads: Six

2.导弹飞行高度:20千米至30千米低轨机动飞行

2. Missile flight altitude: 20-30 kilometers, maneuvering, depressed trajectory

3.导弹射程:1300千米__1800千米

3. Missile range: 1300-1800 kilometers

4.机动发射准备时间:小于9分钟

4. Mobile launcher preparation time: Less than nine minutes

5.每枚弹头当量:450千克黑索今 (相当于1100千克TNT当量)

5. Individual warhead weight: 450kg explosive (equivalent to 1100kgs of TNT)

6.导弹飞行速度:8马赫__12马赫

6. Missile flight speed: Mach 8-12

7.弹头攻击角度:60度__90度俯冲攻击

7. Warhead angle of attack: Between 60-90 degrees diving attack

8.弹头飞行速度:6马赫__8马赫小动量变轨飞行

8. Warhead flight speed: Mach 6-8 with minor maneuvering

9. 弹头制导方式:红外; 自备激光群发; 可视电视; 图像记忆

9. Warhead Guidance: Infrared, self-equipped lasing (this is a tough one to translate); electro-optical; imaging

10. 弹头攻击方式:穿甲; 延时自爆

10. Warhead Attack Method: Armor piercing; delayed fuse

11. 弹头飞行距离:60千米
11. Warhead flight range: 60 kilometers

野战陆基型低轨分导式“航母末日”反航母导弹(东风25乙)具备隐身和超强抗各种干扰能力,发射准备阶段和距离航母舰队500千米前,利用GPS、北斗系统、低轨侦察卫星、天波雷达、地面监听站等设备对航母舰队进行连续跟踪,以保证飞行方向。距离航母舰队500千米时,弹载雷达设备自动寻的,对目标方位进行修正、定位。

Using stealth and ECCM, the ground-launched “carrier killer” ASBM (DF-25B) relies on GPS, Beidou, LEO satellites, OTH-B, and SIGINT sites to establish a continuous track during the launch preparation stage and up to 500 kilometers from the aircraft carrier group. At a range of 500 kilometers, the missile-borne radar starts its autonomous search for the target, and adjusting its direction and position in relation to the target.

其它性能:

Other Characteristics:

1.导弹母体在飞行中敌方雷达可探测距离小于100千米。

1. Enemy radars can detect the main missile body at a range of less than 100 kilometers.

2.导弹母体在释放出分弹头后,可在战区上空盘旋,为分弹头提供制导,并对航母舰队进行强电磁、电子压制。

2. After the main missile body releases warheads, it can loiter within the theater and provide warheads with guidance as well as conduct electronic countermeasures against the aircraft carrier battle group.

3.
导弹母体保持200秒以上盘旋时间。

The main missile body can loiter for more than 200 seconds.

4.导弹母体保持200秒以上盘旋时间后,携带预留高燃剂以10马赫速度、90度直角俯冲攻击航空母舰。

4. After loitering for more than 200 seconds, the missile body can carry a reserve high energy propellant in order to achieve a speed of Mach 10 and dive toward the carrier at a 90 degree angle of attack.

5.导弹母体俯冲攻击航空母舰兼磁爆效应。

5.As it dives, it can have an electromagnetic explosive effect (difficult to translate).

另外,野战陆基型低轨分导式“航母末日”反航弹道母导弹(东风25乙)备有多种弹头

In addition, the ASBM (DF-25B) has several types of warheads:

1.高爆穿甲弹

High-explosive armor piercing shell

2.电磁炸弹

EMP Bomb

3.高爆穿甲燃烧弹

Highly explosive armor piercing incendiary shell

4.高爆子母弹

High explosive submunitions

5.声波弹

Acoustic warhead

6.诱饵弹

Decoys

前段时间国防大学军事专家张教授提出我国目前并不急于建造航空母舰的建议,原因很可能是知道反航母弹道导弹“航母末日”既将问世。

At previous times, NDU Professor Zhang raised that China shouldn’t rush to build aircraft carriers, because perhaps the “final days of the aircraft carrier” are going to become public.

陆基型低轨分导式“航母末日”可有效地将航空母舰阻挡在海岸线1000千米——1500千米外,并对进入“航母末日”有效射程范围内的敌舰予以毁灭性的打击。

Ground-based low trajectory, separable warhead ASBM could effectively prevent the aircraft carrier from crossing a 1000-1500 kilometer line. And also the ASBM will effectively enable us to destroy vessels that come within this range.

{{Note: In the Sina.com version, the final two paragraphs are substituted with the following discussion of the sub-launched DF-26 variant and a torpedo-like payload without any additional detail:

另外具可靠消息透露,中国军方正加紧开发新型“航母末日”专用超高速潜水高爆火箭
弹头,取名“龙啸”。预计“龙啸”脱离母弹入水后的速度为500千米,水下航程80千米,爆炸当量达到900千克TNT.

In addition, according to reliable sources, the PLA is developing a special use underwater warhead referred to as the “Longxiao.” It’s estimated that the Longxiao would separate from the main missile body and enter the water at a range of 500 kilometers (Chinese says “speed” though), have an underwater range of 80 kilometers, and have 900kg of explosives.

美军方分析,因潜射型低轨分导式“航母末日”反航弹道母导弹弹体偏大,目前中方只有094型战略导弹核潜艇和在研的095型核攻击潜艇、096型战略导弹核潜艇能够搭载。由于094型、096型战略导弹核潜艇的定位不同,携带“航母末日”的数量在3枚以内;095型核攻击潜艇可携带“航母末日”的数量在8——10枚左右.

American sources claim that because the size of a sub-launched ASBM structure is large, only the 094 submarine, 095 submarine that’s in development, and the 096 submarine could serve as launch platforms. Because the positions of the 094 and the 096 subs aren’t the same, they can only carry three missiles or less. The 095 should be able to carry 8-10 missiles.

END

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