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Sunday, January 20, 2008

PLA Navy Ming class Submarine equipped with Datalink system for long range attack

In January 2008, CCTV military news disclosed that PLA Navy Ming Class conventional submarine has equipped with datalink system for underwater attack.

In the TV news story, a submarine captain from the 12th submarine detachment of PLA Navy Northern fleet introduced that Ming class submarine has used datalink system.

Ming Class Conventional Submarine inside structure

Ming Class Conventional Submarine inside structure

Ming Class Conventional Submarine inside structure

Ming Class Conventional Submarine control panel

Class Conventional Submarine control panel

Class Conventional Submarine control panel

Class Conventional Submarine control panel


submarine staff

Training simulator for Ming Class Submarine

Training simulator for Ming Class Submarine


Training simulator for Ming Class Submarine

Tuesday, January 8, 2008

New Yuan-class conventional Submarine appeared in Wuhan







Tuesday, December 4, 2007

CCTV showed SLBM launching scene, possible JL-2



This news is from CCTV 7th-channel, which contains military news for PLA officers and other service people. Resources in China believe that it is JL-2 SLBM.



This video clip is to propagandise a professor in PLA Navy submarine warfare college.



This picture is considered as the closest shot of PLA navy Type 094 SSBN, which can carry 12 JL-2 SLBM.

Tuesday, October 30, 2007

Clear-cut image of China's New SSBN "celebrates" the initiation of CPC congress



When Chinese President Hu Jintao was delivering his report on 17th CPC National Congress, he was unimaginable that at the same time an extremely close shot of China's New Ballistic Nuclear Submarine was being shared in Internet.

Not a satellite image, the clearest picture of this new submarine is found from an online college photo album of Tsing-hua University and was photographed on September 7, 2007. The location is probably the submarine manufacturing base in Dalian HuluDao shipyard, Liaoning Province.

In the images, 2 nuclear Subs can be found. The front one is a Type 092 similar Submarine, but some exterior features differentiate it from previous model.


Firstly, the Sub's sail has some tiny differences with the well-known No.406 "Xia" SSBN, including the diving wing position and observing window. Secondly, this sub has a bulged tip of the tail fin, which perhaps plays as a long-wave communication device for receiving commanding code. Third, the array of drainage on the missile launch compartment is modified.

The rear one has no details but its sail displayed on the image, it can be primarily judged to be the same one with the front.

Type 092

Besides, the lids of 12 SLBM launch tubes of the submarine have been swung open. The inner side of tube cover is looks more hollow than before and it can be reasoned out that Chinese SLBM has less launching impact and better tube-space-saving after using “self-rupturing convex membrane” technologies, which learned from Trident C4 SLBM.



The exact model of these two SSBN can not be confirmed, but these two subs are the main roles which were discovered on Google Earth in October 2007 and discussed in western strategic analyzers. Actually, one photo of new Chinese SSBN has been unleashed in the year of 2006, but it can not be identified from previous type 092 model.

Chinese resources have different voices about this new model, some believed that they are new Type 094 Ballistic Submarine and dissenters insisted that they are just the modified model of Type 092. The exact model or type of these two submarines is nor important. But one truth is clear that China has at least held 3 SSBNs to carry 36 JL-2 Missiles. Under the estimation of 3 MIRVs of JL-2, PLA has really established a basic naval-based nuclear deterrence of over 100 nuke warheads.

Since 80th anniversary of PLA, some PLA's key naval underwater combat systems has emerged to public, including so-called "Type 093 and Type 094" submarines, which have been esteemed as powerful “Sha-Shou-jian” weapon by western countries. But the fact is that these new systems have no distinct advancement: Type 093 still in 1970s level and Type 094 (if it is) remain 12 SLBMs and inherit an outdated design in missile compartment.

Those indicated that China top heads are eager to establish reliable nuclear forces under U.S. pressure and have no patience to wait for low-efficiency state-run military industries providing world-class fighting systems. The negative influence of great degeneracy in 1970s "cultural Revolution" and "Economic Development First" Policy in early 1990 still exist in China military industries.

On his report on 17th CPC national congress, President Hu Jintao said that "China will enhance our capacity for independent innovation in R&D of weapons and equipment with better quality and cost-effectiveness" His words mean that after 20 years’ reform China has determined to erase its weapon systems’ disrepute of “Poor Quality”, “low additional value” and “Pirate Copy”.

Wednesday, July 25, 2007

PLA highly shows Type 093 Sub and PLZ-05 SPH

June 16, "Expo of National Defense and Armed Forces Achievements since New China's Foundation" was held in Beijing "Chinese People Revolutionary military Museum". Several home-made military equipments unveiled in public. Especially, Type 093 attack nuclear submarine and Type 05 self-propelled howitzer can be impressively found in the expo.
Type 093 nuclear-powered submarine is exposed by a photo of its surface sailing state. The photo has no explanation of the sub's designation name but a unclear comment: "New Type Nuclear Submarine", because China never open the fresh weapon's exact model. The distinguished appearance comparing with Type 091 sub, however, tells that the boat in the photo is the legendary Type 093 attack nuclear submarine.




The most notable change in Type 093 submarine is the disappearance of controlling plane on sub's sail. Previously an unconfirmed blurred image of Type 093 submarine on Internet also corroborates the change. If the Type 093 sub uses "bow diving planes" like U.S. navy Virginia class submarines, the main reason is Type 093 has a smaller "conning tower" with no space for rudder steering gear. PLA navy has known the fact that a decreased sized sub sail can reduce the noise and resistance force when in underwater maneuver.




Besides, the positions of Type 093's sail, rescue buoy and bow antenna is changed. And these changes can be compared with the displayed Type 091A model and other previous photos. Actually, the photo gives a sense that the sail's position is backward than before. And this design also needs bow-diving-plane configuration for greater controlling efficient.




But in the picture, the sub's "conning tower" is even looked to be higher and larger than before. So another possibility is that the photographing angle can not shot the sail dive planes.







A widely sited conclusion is that Type 093 project is assisted by Russian Rubin Central Design Bureau or it has heavy Russian influence. Western analyzers often compare Type 093 with Russian Victor-III nuclear-power attack submarine. Now the Photo clarifies that the Chinese Type 093 has its own characters and its shape-design is close to Royal Navy Trafalgar Class submarine.




Another "VIP" in expo is PLZ-05 155mm self-propelled howitzer. PLZ-05 SPH has a enlarged turret which installed on PLZ-45 full-track chassis. PLZ-05 is a exportation designation of NORINCO in the year of 2002. Most technologies of PLA-05 are from PLZ-04 SPH for PLA Army Artillery. It has been known that PLZ-05's barrel length is 52 caliber and PLZ-04 SPH has a 54 caliber length barrel.

The PLZ-05 displayed on the museum has a commander panoramic periscope on the top of turret and a gunner day/night direct fire sight parallel fitted on gun barrel. Indeed, PLZ-04 SPH is a milestone in PLA Army artillery Digitalization.



Furthermore, the outdoor display in museum also includes JH-7A fighter, Type 99G, New Amphibious Vehicle, DF-25 ballistic missile and other Land& air Warfare System.

China Media unveils one Han class Submarine's out of commission

July 3rd,Qingdao local media said that a retired nuclear submarine was going to be exhibited in Qingdao Naval Museum. It means that the type 091 nuclear submarine (NATO called as "Han" class) starts to quit its service in PLA Navy 33 years later and to be replaced by Type 093 submarine.

The report did not say the detail information of the retired submarine. But it is usually believed that the first one is Type 091 SSN-401 submarine, which is called as "Long March No.1" in China. Several years before, some western analyzers have judged that the SSN-401 and SSN-402 submarines have been no longer operational in duty because of technological malfunction and reactor radiation pollution. However PLA never admitted it and the secret-keeping fog on the nuclear submarine fleet close its door to all foreign and domestic civilian news media.

Except the No.401 submarine, the SSN-402 submarine (serviced in 1980) and SSN-403(serviced in 1984) have been operational in PLA navy for over 20 years. The newest one, SSN-405, is over 17 years. Since the years of 2000, the main players in exercises are usually SSN-404 and SSN-405.

There is an unconfirmed event that a Type 091 nuclear submarine collided with a Russian Victor-III nuclear submarine (K-234). According to the service time, SSN-401 and SSN-402 may be the sufferer involved in the accident. Actually after entering 21st century, PLA intentionally decreased the size of the original huge number on submarine superstructure to cover the exact active status of Type 091 nuclear submarine.

Now it can be asserted that SSN 401 has been retired from PLA navy, because 33-year service time is not completely unacceptable. USS Los Angeles SSN-688 is still active for 31 years since its commission in 13 November 1976. Since the SSN-401 has been playing a valuable testing platform of PLA, SSN-402 has possibility of being out.

The limited number of PLA navy nuclear submarine kept a special position of Type 091 submarine. In PLA navy, Type 091 was called as “Strategic” Attack Nuclear submarine. In fact, type 091 submarines often carry strategic tasks, like breaking through the second island chain to show PLA’s power in high seas or executing deterrent to U.S. carrier striking group, although the real aftermath is unclear.
Considering PLA Navy’s strategic position in western pacific, the nuclear submarine amount needs to be expanded. So the total retirement of Han class family can not be seen in next 6-8 years.

Tuesday, July 3, 2007

Stirling Engine used in PLA newest conventional Submarine

(other news story used by Jane's Defense Weekly in May, possibly)
In March 2007, Science & Technology Daily, One of China official newspapers, publish a news story, which showed that China has used Stirling Engine as AIP power for PLA navy newest Type 039A conventional Submarines.

The background of “Science & Technology Daily” showed that it has deep relations with China governmental Sci & Tech organizations, including the COSTIND (commission of science technology and industry for national defense). Type 039A is the so-called “Yuan” class submarine named by western countries.

The news story unleashed that the Project of Stirling Engine AIP is run by No.711 research institute under CSIC (China Shipbuilding Industry Corporation). And in 2007 the of project successfully won the first class prize of State Science and Technology Advancement Award (J-10 Fighter is given the special award).

The father of Chinese edition Stirling Engine is Dr. Jin Donghan (金东寒). In China, He is the first people with Doctor degree in Stirling engine research area. And the research on kinds of AIP powers for conventional submarines can be traced to early 1980s.

To fulfill the strategies of “liberating Taiwan” and “Breaking through the US-Japan Blanking off”, PLA navy needs powerful submarine fleets to fight against submarine and anti-submarine forces of US and Japan. However, lots of aged conventional submarines can not realize those tasks.

PLA admitted that the stealth level is very important in judging a submarine’s performance. Of course China can not stand a full-nuclear submarine force like U.S navy, so PLA has always been focusing on AIP powers, such as Closed Cycle Diesel AIP, Stirling Engine AIP and Fuel Cell AIP. Besides, Huang Xuhua, the designer of “Han” class nuclear submarine, even believed that the mini nuclear reactor is the best choice.

Some other resources likely proved that some pre-research activities have begun in those areas since 1980s. After almost 15 years, PLA navy has made rational selection: the nuclear reactor is expensive; fuel cell’s safety is unstable and it is an unpractical goal to China’s technologies; the CCD AIP’s disadvantage is higher noise.

For 10 years (from 1991 to 2000), No.711 Research Institute has made the most excellent achievements. In 1998, Jin Donghan and his team made China’s first theoretic demonstrating Stirling Engine, which power is 75KW. Unlike ROK and Australia, China has solved related technological and engineering difficulties in Stirling Engine. In 2002, Jin Donghan’s team worked out an engineering demonstrator. After 20,000 hours’ testing, China’s own Stirling Engine was installed in China’s Type 039A submarine in 2004.
China’s fruition in Stirling Engine can not be realized without substantial investment for years. From 1991 to 1996, the annual investment is only 70,000 RMB and from 2000 to 2005, the number changed to 10 million RMB.