Type 730 CIWS The Type 730 is a Chinese seven - barrelled 30 mm Gatling gun CIWS . It has a PLA - N designation H / PJ12 . It is mounted in an enclosed automatic turret and directed by radar , and electro - optical tracking systems . The maximum rate of fire is 5800 rd / m , and the effective range is up to 3 km . Origin . The system ' s primary purpose is defence against anti - ship missile s , and other precision guided weapons . However , it can also be employed against fixed / rotary wing aircraft , ships and other small craft , coastal targets , and floating mines . Though externally similar to the Dutch Goalkeeper in appearance , it is thought to operate indigenous radar and optical systems . Another reported source of technology was reported to be the French which had experimented with the same General Electric EX - 83 mount for their CIWS requirements . Two systems , SAGEM ' s SAMOS and the Thomson - CSF ' s SATAN were under evaluation in October 1987 . The SAGEM SAMOS system featured the EX - 83 mount with a SAGEM VOLCAN optical director , while the Thomson - CSF variant was controlled with an off - board Castor IIJ fire - control radar . Photos of the prototype Type 730 unit under trial apparently shows a SAGEM VOLCAN EO director in place of the domestic OFC - 3 EO director . Development . The gun is designed by the 713th ( research ) institute under the name ' Project 850 ' and is powered by two electric motors . The radar TR47C is a derivative of the EFR - 1 / LR66 J - band radar ( NATO code name : Rice Lamp ) by Xi ' an Research Institute of Navigation Technology , but it is unclear that if this derivative is developed by the same institution . The OFC ( Optical Fire Control ) - 3 electro - optical fire control system is designed by the Central China Optronic ( electro - optical ) Research Institute . Radar . The TR47C radar operates in the same way of AN / APY - 1 / 2 radar onboard E - 3 Sentry in that the azimuth is scanned mechanically , while the elevation is scanned electronically , incorporating a total of 169 transceivers of phased array technology that enables the radar to pick up the splashes of 30 mm rounds . Like the western CIWS , the information is processed on site , via local computers of the radar and the gun mount , thus providing faster reaction time than the Russian design in which the radar and fire control system are separately located . Electro - optics ( optronics ) . The OFC - 3 system is modular design that comprises a laser range finder , a color TV camera , and an IR camera , and the laser range finder can be replaced by a laser designator ( for a laser beam - riding SAM ) , the TV camera can be replaced by a night vision camera , and the IR camera can be replaced by an ImIR , at higher cost . Development to incorporate the dual band IR , night vision camera , and the color TV camera is reportedly in progress . Fire - control system . Like western CIWS , Type 730 CIWS is an autonomous closed - loop system and thus offers faster reaction time than the Russian AK - 630 . Type 730 CIWS is fully compatible with Chinese and European combat data systems such as ZKJ - 1 , ZKJ - 4 , ZKJ - 4A - 3 , ZKJ - 5 , ZKJ - 6 , ZKJ - 7 , H / ZBJ - 1 , and Thomson - CSF TAVITAC , and can be directly integrated with these combat data systems without any modification . Range . The system can track a sea - skimming target with 0 . 1 square metre radar cross section at 8 km , extended to 15 km if the radar cross section is increased to 2 square metres , and further extended to 20 km if the radar cross section is increased to 10 square metres , though the targets could not be engaged until much closer ( 3 km ) due to the limited range of the gun . Gun . The 30 mm Gatling gun mount designated as H / PJ - 12 is extremely similar to the General Electric GAU - 8 / A Avenger . Although there are sources claiming that it is the Chinese version of the Russian Gryazev - Shipunov GSh - 6 - 30 Gatling gun , this appears to be unlikely , since the Russian Gatling gun only has six barrels . H / PJ - 12 is versatile in that its FCS system can be either separately installed at different locations like the Soviet AK - 630 , or directly integrated on the gun mount like most western equivalents . Like the American GAU - 8 / A Avenger , it is recommended not to fire longer than a single minute at a rate of 4 , 200 rounds per minute , after which the generated heat would begin melting the rifles of the barrel , shortening its useful life . Rates of fire beyond 4 , 200 rounds per minutes increase wear . There are two ammunition drums each contains 250 rounds , and other versions of the ammunition drums have been reportedly developed . LD - 2000 . The Chinese Navy is currently developing a new version of the system which will include missiles on the same installation . A land based variant designated LD - 2000 ( LD : Lu Dun , 陆盾 , meaning Land Shield ) have also been successfully developed , but this land version lacks the electro - optic fire control system of the ship - borne version , instead , the radar is supplemented by a thermal imaging sight . The weapon is loaded with 1 , 000 rounds , enough , apparently , for about 48 potential target engagements , same as its naval counterpart , with effective range of 2 . 5 to 3 . 5 km . However , the missile armed version was first successfully developed for the land based version as LD - 2000 Gai , with six surface - to - air missiles , three on each side of the turret , as it was revealed to public in 2005 , but it is not clear the exact type of the missile , some claim that they are TY - 90 , while others claim they are DK - 9 , the surface - to - air version of PL - 9 . Deployment . The system has been fitted on board the Type 052 ( after 2011 refit ) , Type 052B , Type 052C , Type 052D , Type 051C destroyers , and the F - 22P and Type 054A frigates so far , and may replace some Type 76 mounts on older combatants . Type 1130 . Further development of Type 730 results in Type 1130 , which first appeared on Chinese aircraft carrier Liaoning . This successor of Type 730 is also 30 mm caliber and has a total 11 barrels , with reported rate of fire of 9 , 000 to 11000 rounds per minute Originally developed with 10 barrels , it eventually had 11 barrels when completed , and rumored to have the nickname Vulcan . Although it ' s reported that FL - 3000 missiles can be integrated to the gun like FCS , this has not occurred yet , and FL - 3000 was installed separately on the first Chinese aircraft carrier in its own launchers . Type 1130 reportedly is able to intercept missiles with a speed of up to Mach 4 , and has reportedly achieved a 96 % success rate in tests .