![Image](http://2.bp.blogspot.com/-I9lr41ZD5qw/Tq5mOlI9GcI/AAAAAAAAEbY/CkGt3jjG-UM/s1600/Improved+YuanQing+submarine+pla+navy+ssk+export+missile+c802+602+babur+missile++%252811%2529.jpg)
here a useful Qing vs Yuan comparison.... in the middle of the blog is a picture of both...
http://warships1discussionboards.yuku.c ... 66youg6uHH
http://chinesemilitaryreview.blogspot.c ... arine.html
![Image](http://1.bp.blogspot.com/-Eb5ZjQVL-N8/TyKiUGJ-MvI/AAAAAAAAKkA/8-NXjOEno1w/s1600/yuan+class+submarine,Chinese+submarine.jpg)
Called the Qing-class SSK, it is a variant of the Type 041A Improved Yuan-class SSK, which is also due to begin its sea trials later this month. It is now believed that the contract inked between CSIC and Pakistan early last April calls for the CSIC’s Wuhan-based Wuchang Shipyard to supply six Qing-class SSKs, all of which will be equipped with a Stirling-cycle AIP system and will be able to carry up to three nuclear warhead-carrying CJ-10K LACMs each. The double-hulled Qing-class SSK, with a submerged displacement close to 3,600 tonnes, bears a close resemblance to the Russian Type 636M SSK, and features hull-retractable foreplanes and hydrodynamically streamlined sail. The first such SSK was launched in Wuhan on September 9 last year, and a total of three such SSKs are on order from China’s PLA Navy as well.
The AIP system for the Qing-class SSK was developed by the 711th Research Institute of CSIC. R & D work began in June 1996, with a 100-strong team of scientists and engineers led by Dr Jin Donghan being involved in developing the Stirling-cycle engine, while another team led Professor Ma Weiming of China’s Naval Engineering University began developing the all-electric AIP system. The two projects entered the production engineering stage in 2007, with the Shanghai Qiyao Propulsion Technology Ltd, a wholly owned subsidiary of the 711th Institute, becoming the principal industrial entity charged with producing the AIP system. Incidentally, the Qing-class SSK’s all-electric propulsion system is a derivative of a similar system that was developed about a decade ago for the PLA Navy’s six Type 093 Shang-class SSGNs and three Type 094 Jin-class SSBNs.
http://trishul-trident.blogspot.com/201 ... s-new.html
http://cnair.top81.cn/han_xia_kilo_song.htmThe first boat of a much improved Yuan class (Type 039B? Qing Class?) was launched at Wuhan Shipyard on September 9, 2010. This class was speculated to feature a new sonar system (flank sonar arrays?), a new surveillance and targeting system (periscope, radar etc.), and a new weapon system (possibly long-range AshM launched from torpedo tubes). However there is no indication that it carries a towed array sonar. The submarine also borrows some experience learned from the Russian Type 636 design, such as the hull mounted retractable foreplanes. The most noticeable feature is a new sail which appears larger in length and width as well as more hydrodynamically streamlined compared to that of 039A. As indicated by a detachable compartment in the mid-section of the sail, it is likely to house an integrated submarine escape system. One image suggests there is a bulge at the bottom of the boat in the mid-section. Speculations were that it could house a single SLBM launch tube extending from the bulge all the way to the top of the sail, a design similar to Russian Golf class SSB. Therefore this particular boat has been speculated to be an SLBM experiment submarine to replace the vintage Golf class SSB (200) still in service with PLAN. As the result its submerged displacement may have been increased to 4,200t. However this theory may turn out to be false if additional boats are built in the future. The improved Yuan/Qing class sailed to a naval base in Shanghai in May 2011 and is currently undergoing its sea trial.
http://chinesemilitaryreview.blogspot.c ... arine.htmlChinese Type 041 Qing Class Submarine was launched at Wuhan Shipyard last year. It is rumored that Type 041 Qing Class Submarines are fitted with flank sonar arrays and improved targeting system to effectively provide guidance to the long-range antiship missiles and land attack cruise missiles.
Qing Class Submarine features hull mounted retractable foreplanes and very large hydrodynamically streamlined sail.
Type 041 Qing Class submarines may also be able to house vertical launch tubes in its sail section to launch cruise missiles.
Submarine's submerged displacement is around 4,200t.
According to some sources Beijing expressed interest to acquire Russian S-400 counter-missile system. To date the Chinese use the components of the S-300 system but are said to be willing to enter closer co-operation on military and technological levels which would eventually lead to implementation of the S-400′s in a near future. Russia is currently developing its replacement, i.e. S-500 which is about to enter the line around 2020.
http://defense-update.com/20120507_chin ... riumf.html
Aujourd'hui à 14h49 locales, un second exemplaire de l'avion de combat chinois J-20 prenait son envol depuis l'aérodrome de Chengdu, berceau de l'avionneur Chengdu Aircraft Corporation (CAC). L'appareil, portant sous la verrière l'immatriculation 2002, a effectué un vol d'essais d'une durée de dix-huit minutes.
Les premières images de ce deuxième prototype étaient apparues au tout début du mois d'avril sur les forums de discussion chinois. Les premiers essais de roulage avaient eu lieu le 10 mai. Extérieurement, il est très difficile de distinguer les deux avions. La différence la plus visible porte sur le tube de pitot qui, sur le n°2001, est légèrement décentré par rapport à la pointe avant, ce qui n'est pas le cas sur le n°2002.
Le 11 mai, le premier prototype, qui avait son vol inaugural le 11 janvier 2011, a quitté l'aérodrome de Chengdu pour une destination officiellement inconnue, depuis laquelle une nouvelle phase d'essais en vol pourrait commencer. Certaines sources chinoises mentionnent la base militaire de Yanliang comme nouveau port d'attache.
http://chinesemilitaryreview.blogspot.c ... s-10a.htmlCHINA REPLACES AL-31FN WITH WS-10A TURBOFAN ENGINES IN J-10B FIGHTER JET
9:43 PM QAMAR NO COMMENTS
China has started using indigenously developed WS-10A Taihang turbofan engines instead of Russian Saturn AL-31FN turbofan engines on its newly developed version of the J-10 Vigorous Dragon fighter jet (J-10B prototype1035). The People's Liberation Army Air Force (PLAAF) is already using the WS-10A turbo Fan engines on its J-11B Flanker.
The first prototype of the improved J-10B fighter was powered by a Russian Saturn AL-31FN turbofan engines and it flew for the first time on December 23, 2008. The J-10B fighter jet uses a chin mounted Diverterless supersonic inlet (DSI) to reduce weight and its overall frontal Radar cross section (RCS).
The J-10B also features a new Infra-Red Search / Track (IRST) for passive detection and a X-band Active Electronically Scanned Array (AESA) radar. The Chengdu Aircraft Corporation (CAC) has also integrated an electronic warfare system in the J-10B’s redesigned vertical tailfin.
China is currently facing a production capacity issues as to limited production of the WS-10A turbofan engines is hampering the production rate of the new build J-11B, J-11BS, J-15 and J-10B fighter jets which are ordered in large numbers by the People's Liberation Army Air Force and People's Liberation Army Navy.
Chinese government has also placed an order for the purchase of additional 123 Russian Saturn AL-31FN turbofan engines for the continuous operations of the J-10A, J-10S, Sukhoi Su-30MKK, Su-30MK2, Shenyang J-11A and Sukhoi Su-27s.