B - 611 The B - 611 missile and its derivatives are a series of Chinese short - range ballistic weapons ( SRBM ) first developed in the late 1990s by the China Precision Machinery Import and Export Corporation ( CPMIEC ) . Typical targets intended for the B - 611 include supply lines , warehouses , missiles sites , battery units , command centers , airfields , transportation hubs , and area targets in urban surroundings . The B - 611 missile with the NATO reporting name CSS - X - 11 , is the follow - on to the earlier Dongfeng - 11 ( M - 11 , with the NATO reporting name ' CSS - 7 ' ) . The missile weighs approximately two tons and is powered by a solid rocket motor . The inertial guidance system with a mechanical gyro , provides an accuracy of Circular error probable ( CEP ) of 150 meters or better ; this can be upgraded with a laser gyro or a fiber - optical gyro based on the customer ’ s request , thanks to the modular design concept adopted . When combined with other guidance systems such as that controlled by satellite , accuracy is increased ten - fold . Thanks to the same modular design concept , a variety of warheads can be equipped , increasing the versatility of the missile . A typical B - 611 battery would include three vehicles , the transporter / erector / launcher ( TEL ) , housing the missile , the communication and command vehicle , and a support vehicle . The system is highly digitized ; the TEL only requires three operators , and can be deployed and operated independently if needed . Its deployment time is less than twenty - five minutes from a traveling state to launch , and any targets within the ±45° sector can be attacked . After launch , it would take less than five minutes to move , thus reducing the risk of possible counterattacks from the enemy . Although the 480 kg payload of a B - 611 can include a single tactical nuclear warhead , it is not normally carried . J - 600T . With the exception of a very limited number in the Chinese military for evaluation purposes , the B - 611 has not entered service en masse . Instead , they would later place large orders for the B - 611M , the follow - up to the B - 611 . However , the B - 611 found its way to the Turkish military , when CPMIEC ( the China Precision Machinery Import - Export Corporation ) , secured a successful export deal for the B - 611 . Information provided by CPMIEC assisted after the Turkish Army failed to secure a deal to import M270 rocket launchers , the B - 611 missile system was then considered by the Turkish authoritis . Negotiations with CPMIEC was started soon afterwards . After signing a contract for the licensed production of the Chinese WS - 1A and WS - 1B rockets in Turkey under the name of ' Kasırga ' in 1997 , a similar contract was signed with CPMIEC for the B - 611 SRBM system in 1998 , for licensed production of 200 + B - 611 missiles in Turkey , at a reported cost of 300 million US dollars . The Turks renamed the missile the ' J - 600T Yıldırım ' , and developed its own version of the TEL named the F - 600T , based on a MAN 26 . 372 6x6 truck , which is also the chassis of the Turkish - built T - 122 ' Sakarya ' and T - 300 ' Kasırga ' Multi - Barrel Rocket Launchers . This has greatly simplified logistics and reduced costs . P - 12 . The P - 12 SRBM is a development of the B - 611 ; it made its public debut at the sixth Zhuhai Airshow . The P - 12 is a shorter version of the B - 611 and is vertically launched . The chassis of the TEL is a cross - country 6 x 6 truck , a total of two missiles are carried in an enclosed compartment in the back of the truck . The short deployment time of the B - 611 is inherited by the P - 12 , despite the number of missiles being carried being doubled . During the launch , the first missile is erected and fired , followed quickly by the second ; this can be achieved in a minute . Range of the P - 12 is 150 km , its warhead is around 300 kg . A variety of warheads can be selected , the cluster warhead of the P - 12 contains a total of nineteen sub - munitions . Designed as a low - cost tactical ballistic missile , the P - 12 adopts the same modular design concept inherited from its predecessor , the B - 611 ; this means that sub - systems of the missile can be selected from a wide range of options based on the customers ’ requirements . For example , the most basic form of inertial guidance system of the P - 12 provide an accuracy of 80 meters or better , but this can be greatly improved to as much as ±2 meters when combined with other measures , such as satellite , radar and optical guidance . Video footage of test firings shown at the seventh Zhuhai Airshow by the developer has revealed that the combined guidance system of the P - 12 enables it to hit a target such as an ordinary family house - sized warehouse at its maximum range , but the developer did not reveal the exact types of guidance systems deployed . The P - 12 missile has entered Chinese service , along with the B - 611M . B - 611M . A successor to the B - 611 , the B - 611M has been developed for and entered Chinese service , utilizing the experience gained from both the B - 611 and P - 12 missiles . Its basic performance is similar to that of the B - 611 , but its firepower is doubled when adopting the same practice as the P - 12 : putting two missiles on a single TEL . As with the P - 12 , the two missiles can be erected and launched within a minute - a simultaneous launch is not possible . As with the P - 12 , the B - 611M has some maneuverability at its terminal stage of flight , making it more difficult for the enemy to intercept . The chassis of the TEL of the B - 611M is based on a 8 x 8 cross country truck , ( a BeiBen ) at Baotou . Two missiles are stored in the compartment in the back , each with its own launcher / storage container , as opposed to the exposed missiles of the P - 12 , the rectangular launcher / storage containers of the B - 611M are filled with nitrogen for added protection from the environment . As with the B - 611M and the P - 12 , the TEL of the B - 611M is capable of fighting independently in an emergency . BP - 12 . The existence of the BP - 12 was revealed during the eighth Zhuhai Airshow which had been held at the end of 2010 . The BP - 12 is the first of the series that branched out of the B - 611 / P - 12 family . In contrast to the B - 611 / P - 12 which adopts inertial guidance , the BP - 12 adopts a satellite guidance instead . Through GPS , and based on the best accuracy the commercial GPS could provide , the accuracy of the BP - 12 was given by the developer as a CEP of 30 meters or better . After entering Chinese service in very limited numbers for evaluation , the missile was further developed into the Type 621 . Type 621 . The type 621 missile is the first development of the BP - 12 , which incorporates additional satellite guidance systems such as Glonass and Beidou , ( in case GPS is not available ) . The external visual difference between a BP - 12 and a Type 621 is that the missile for the Type 621 is unlike the B - 611 where the weapon is exposed ; the Type 621 is enclosed in a container that also acts as a transporter / erector . Type 631 . The type 631 is a further development of the Type 621 ; its firepower is doubled when two containers / transporters / erectors are incorporated , a design feature rooted from the B - 611M . It is rumored that the Type 631 has a range greater than 400 km , thus it cannot be marketed internationally . However , such a claim has yet to be confirmed by official sources from western or Chinese governments . BP - 12A . A model of the BP - 12A was shown at the eighth Zhuhai Airshow , externally the system appears very similar to the Type 631 described in the brochure , but the maximum range of the BP - 12A is just below 300 km to meet export restrictions of the international arms trade regulations . Nonetheless , the most important upgrade is that the fire control interface of the BP - 12A is identical to the SY - 400 MLRS , thus reducing the cost . Like the SY400 , the storage life of the BP - 12A in its container is twelve years , it only needs to be tested once a year for an annual periodical check , which is done without opening the container . M20 . The M20 tactical ballistic missile ( TBM ) was first revealed in 2011 at a defense exhibition in the UAE , it is another member of the B - 611 family . Very little information has been released about the M20 , but many western observers suspect that it has absorbed technologies of the Russian SS - 26 , such as the addition of infrared guidance and the ability to change its course at the terminal stage of flight to make it more difficult to be intercepted . Many Chinese internet sources have claimed that China had obtained technologies of the SS - 26 not by reverse engineering , but by hiring missile experts from Russia and the Ukraine after the USSR dissolved . Due to the M20 TBM being marketed by the Chinese on the world arms market , its maximum range is just below the 300 km limit . At the ninth Zhuhai Airshow held in November 2012 , the developer revealed that the M20 had incorporated a terminal maneuver capability , thus making it more difficult to intercept .