SD-10
Encyclopedia
The PL-12 also designated SD-10 (ShanDian-10, 闪电-10), is a radar-guided air-to-air missile
Air-to-air missile
An air-to-air missile is a missile fired from an aircraft for the purpose of destroying another aircraft. AAMs are typically powered by one or more rocket motors, usually solid fuelled but sometimes liquid fuelled...

 developed by China's Luoyang Electro-Optical Technology Development Center. PL-12 is in service with the People's Liberation Army Air Force
People's Liberation Army Air Force
The People's Liberation Army Air Force is the aviation branch of the People's Liberation Army, the military of the People's Republic of China...

 (PLAAF) and its export version, SD-10, is expected to enter service with the Pakistan Air Force
Pakistan Air Force
The Pakistan Air Force is the leading air arm of the Pakistan Armed Forces and is primarily tasked with the aerial defence of Pakistan with a secondary role of providing air support to the Pakistan Army and the Pakistan Navy. The PAF also has a tertiary role of providing strategic air transport...

.

Development history

The PL-12 active-radar BVR air-to-air missile became the highest priority air-to-air weapons programme for China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

's military industry during 2002, and supplanted several previous developmental projects (such as the PL-10
LY-60 / FD-60 / PL10
The LY-60/FD-60/PL-11/HQ-6/6D/64 is a family of PRC missiles developed by the Shanghai Academy of Science and Technology, largely based on the Italian Alenia Aspide missile - itself a version of the American AIM-7 Sparrow missile...

 and PL-11
PL-11
PL-11 is a high-level machine-oriented programming language for the PDP-11, developed by R.D. Russell of CERN in 1971. Written in Fortran IV, it is similar to PL360 and is cross-compiled on other machines....

) in terms of effort and importance. It provides the People's Liberation Army Air Force with a sophisticated, domestic airborne weapon on par with mainstream Western Airforces around the world. It will equip the mainstream of future modern Chinese fighters, and current compatible fighters.

The PL-12 is listed as part of CATIC's current 'Thunder-Lightning' family of air-to-air missiles, that includes the PL-5E, PL- 9C and TY-90 systems (all developed by the Luoyang Electro-Optical Technology Development Center). The chief designer of PL-12 is Fan Huitao (樊会涛) of AVIC I. Development of PL-12 was once led by Dong Bingyin, former chief designer of PL-12 who passed away in 2000.

Prior to the emergence of the PL-12, China's active radar seeker AAM development programme was sometimes identified as the 'AMR-1'. During Air Show China 1996, held during November in Zhuhai, the China Leihua Electronic Technology Research Institute/No 607 Research Institute exhibited a newly-developed active radar seeker, the AMR-1. This seeker was, in turn, believed to have been applied to a new air- to-air missile design, derived from the LY-60 surface-to-air missile, and dubbed the 'PL-12'. This active radar missile, and the earlier semi-active radar homing PL-11, seemed to have a common design heritage with the Italian Aspide missile, supplied to China during the late 1980s. The status of the PL-11 and 'LY-60/PL-12' development programmes is unclear, but sources within CATIC say these earlier programmes have all been abandoned in favor of the PL-12.

The existence of the PL-12 programme was acknowledged by Chinese officials for the first time in early 2002 (the first pictures of the new missile appeared from Chinese sources during 2001). According to CATIC sources the missile has a range of 80 km. Earlier speculation around the AMR-1/LY-60 programme suggested that a ramjet engine was being developed for it, and such a powerplant would allow a missile to be effective at such long ranges.

An article from the PLA Newspaper of 2nd December 2008 reveals that SD-10 has more than 100 km effective range.

Description

The new PL-12 active guided air-launched anti-aircraft missile uses the radar and data link from Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

's very capable Vympel R-77
Vympel R-77
The Russian R-77 Missile is a medium range, air-to-air, active radar-guided missile system. It is the Russian counterpart to the American AIM-120 AMRAAM missile, thus gaining a nickname: Amraamski....

, combined with a Chinese missile motor. Some sources claim the resulting combination has a greater range than the Russian missile, and a fire-and-forget active guidance (from R-77) capability comparable to the modern U.S.
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 AIM-120 AMRAAM
AIM-120 AMRAAM
The AIM-120 Advanced Medium-Range Air-to-Air Missile, or AMRAAM , is a modern beyond-visual-range air-to-air missile capable of all-weather day-and-night operations. Designed with the same form-factor as the previous generation of semi-active guided Sparrow missiles, it is a fire-and-forget...

.

The PL-12 is outwardly very similar to the US-designed AIM-120 AMRAAM. The two share a comparable aerodynamic configuration, although the PL-12 is a little longer, wider and heavier than the AMRAAM. The PL-12 has four rear-mounted control fins that each have a very distinctive notch cut into their base. These fins are longer and more prominent than those of the AMRAAM and are cropped at an angle (rather than in line with the missile body). Four larger triangular fins are fixed to the mid-section of the missile. Internally, the leading edge of the centrebody fins is in line with the start of the missile's rocket motor. That motor is a variable-thrust
Thrust
Thrust is a reaction force described quantitatively by Newton's second and third laws. When a system expels or accelerates mass in one direction the accelerated mass will cause a force of equal magnitude but opposite direction on that system....

 solid rocket booster, that offers two levels of motive power for different sections of the flight envelope.

CATIC is known to be developing X-band and Ku-band active radar
Radar
Radar is an object-detection system which uses radio waves to determine the range, altitude, direction, or speed of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. The radar dish or antenna transmits pulses of radio...

 seekers, which may be intended for the PL-12. However the latest reports confirm that China has been co-operating closely with Russia's AGAT Research Institute, based in Moscow
Moscow
Moscow is the capital, the most populous city, and the most populous federal subject of Russia. The city is a major political, economic, cultural, scientific, religious, financial, educational, and transportation centre of Russia and the continent...

, and that AGAT is the source of the PL-12's essential active seeker. This joint development effort (perhaps with the name 'Project 129') has reportedly seen the supply of AGAT's 9B-1348 active-radar seeker (developed for the Vympel R-77, AA-12 'Adder') to China for integration with the Chinese-developed missile. Alternatively, technology from AGAT's 9B-1103M seeker family may be offered to China. Russia is also the source for the missile's inertial navigation system
Inertial navigation system
An inertial navigation system is a navigation aid that uses a computer, motion sensors and rotation sensors to continuously calculate via dead reckoning the position, orientation, and velocity of a moving object without the need for external references...

 and datalink.

The PL-12 has four engagement modes. To take the greatest advantage of its maximum range it will use a mix of command guidance (via a datalink) plus its own inertial guidance before entering the active radar terminal guidance phase. The missile can also be launched to a pre-selected point, using its strap-down inertial system, before switching on its own seeker for a terminal search. Over short ranges the missile can be launched in a 'fire-and-forget' mode using its own active seeker from the outset. Finally, the PL-12 has a 'home-on-jam' mode that allows it to passively track and engage an emitting target, without ever using its own active radar or a radar from the launch aircraft. This capability is the foundation on which the capability of anti-radiation missile is developed. The seeker is connected to a digital flight control system that uses signal processing techniques to track a target. The missile's warhead is linked to a laser proximity fuse.

The PL-12 is claimed to have an operational ceiling of at least 21 km, with a maximum effective range of 70km and a minimum engagement range of 1,000 m. The missile has a 38+ g manoeuvering limit and, according to CATIC, it has been tested for a 100-hour captive 'live flight' life. According to Chinese claims, PL-12 is more capable than the American AIM-120 A/B
AIM-120 AMRAAM
The AIM-120 Advanced Medium-Range Air-to-Air Missile, or AMRAAM , is a modern beyond-visual-range air-to-air missile capable of all-weather day-and-night operations. Designed with the same form-factor as the previous generation of semi-active guided Sparrow missiles, it is a fire-and-forget...

, but slightly inferior than the AIM-120C
AIM-120 AMRAAM
The AIM-120 Advanced Medium-Range Air-to-Air Missile, or AMRAAM , is a modern beyond-visual-range air-to-air missile capable of all-weather day-and-night operations. Designed with the same form-factor as the previous generation of semi-active guided Sparrow missiles, it is a fire-and-forget...

.

The PL-12 can be deployed by the Chengdu J-10
Chengdu J-10
The Chengdu J-10 is a multirole fighter aircraft designed and produced by the People's Republic of China's Chengdu Aircraft Industry Corporation for the People's Liberation Army Air Force...

, Shenyang J-8F
Shenyang J-8
The Shenyang J-8 is a high-speed, high-altitude Chinese-built single-seat interceptor fighter aircraft.-J-8:...

, Shenyang J-11
Shenyang J-11
The Shenyang J-11 with NATO reporting name: Flanker B+ is a single-seat, twin-engine jet fighter based on the Soviet-designed Sukhoi Su-27 air superiority fighter produced by the Shenyang Aircraft Corporation...

 and JF-17 combat aircraft.

Three new variants of the PL-12 have been unveiled with newer ones in development:
  • PL-12B: with improved guidance system
  • PL-12C: with foldable tailfins for internal carriage on 5th-generation fighters
  • PL-12D: with a belly inlet and ramjet engine for even longer range attacks, similar to the PL-21

Surface launched version

Like the AIM-120 AMRAAM, PL-12 is also used as SAM, and tests have already successfully completed as the possible replacement of LY-60, but such system has not entered service because China has already been developing the vertical launched version. The vertical launching system is developed by the Luoyang
Luoyang
Luoyang is a prefecture-level city in western Henan province of Central China. It borders the provincial capital of Zhengzhou to the east, Pingdingshan to the southeast, Nanyang to the south, Sanmenxia to the west, Jiyuan to the north, and Jiaozuo to the northeast.Situated on the central plain of...

 Optronic Technological Development Center in Henan
Henan
Henan , is a province of the People's Republic of China, located in the central part of the country. Its one-character abbreviation is "豫" , named after Yuzhou , a Han Dynasty state that included parts of Henan...

, and the system is called CCL, short for Concentric Cylindrical Launcher, which is similar to American Mk 48 VLS in appearance, but due to the very limited information publicized, it is difficult to tell if the Chinese VLS is a "cold launch" system or a "hot launch" system like that of American Mk 48 VLS.

LS-II ADS

At the 7th Zhuhai Airshow held at the end of 2008, a mobile air defense system (ADS) based on PL-12/SD-10 were revealed to the public. The weapon system is designated as LS-II ADS, with LS stands for Lie Shou, meaning Hunter in Chinese (猎手). The launching system does not incorporate VLS technology, but is very similar to Raytheon
Raytheon
Raytheon Company is a major American defense contractor and industrial corporation with core manufacturing concentrations in weapons and military and commercial electronics. It was previously involved in corporate and special-mission aircraft until early 2007...

 SL-AMRAAM (Surface Launched - Advanced Air-to-Air Missile).

The launching platform is Dongfeng (东风, East Wind) EQ2050 Iron Armor (Tiejia, 铁甲) or other Chinese High Mobility Multipurpose Wheeled Vehicle (HMMWV)
PRC HMMWVs
There are at least two Chinese automobile manufacturers building Humvee copies, possibly with the assistance of AM General. Both Humvee copies rely heavily on imported U.S.-made parts including chassis, gear box, and diesel engine. It appears that at least one company, Dongfeng Motor Corporation ,...

, and like SL-AMRAAM, both the short-range IR guided AAM and medium-range AAM are included. The Chinese LS-II ADS launching platform differs from its Raytheon counterpart in that the latter has a total of 6 missiles, while former only has four. LS-II ADS only contains two short-range IR guided AAMs (PL-9) and two medium-range AAMs (PL-12/SD-10), with PL-12/SD-10 missiles mounted in the center, and the PL-9 missiles mounted on the outside. The second pair of medium-range AAMs of Raytheon SL-AMRAAM system outside the short-range IR guided AAMs does not exist on the Chinese LS-II ADS.

In addition to the launching vehicle, LS-II ADS also include two other vehicles, which is also often based on the Dongfeng (东风, East Wind) EQ2050 Iron Armor (Tiejia, 铁甲) or other Chinese High Mobility Multipurpose Wheeled Vehicle (HMMWV)
PRC HMMWVs
There are at least two Chinese automobile manufacturers building Humvee copies, possibly with the assistance of AM General. Both Humvee copies rely heavily on imported U.S.-made parts including chassis, gear box, and diesel engine. It appears that at least one company, Dongfeng Motor Corporation ,...

, for the purpose to simplify logistics, though chassis of other vehicles are also available. One of the two other vehicle is for power source, and LS-II ADS can be fully functional without it, though on a shorter continuous operation. When engaging targets, PL-9/DK-9 would engage targets at lower altitude while PL-12/SD-10 would engage targets at higher altitude, and multiple missiles can be fired together to simultaneously engage multiple targets.

Another vehicle of LS-II ADS carries a passive-phased array radar for fire control. The new radar is based on the anti-stealth radar shown a year earlier at defense exhibition at Abu Dhabi
Abu Dhabi
Abu Dhabi , literally Father of Gazelle, is the capital and the second largest city of the United Arab Emirates in terms of population and the largest of the seven member emirates of the United Arab Emirates. Abu Dhabi lies on a T-shaped island jutting into the Persian Gulf from the central western...

 in 2007, and appears to be a scaled-down version of the former. However, the developer dubbed the radar as Anti-low radar cross section early warning radar, though some capability against stealth target do exist. Electro-optical fire control system is mounted separately on the roof of the driver's cabin of the launching vehicle, and can function independently in the absence of the radar. LS-II ADS is integrated to the larger air defense network via LIN87 data link.

Potential export opportunities

  • The Egyptian Air Force
    Egyptian Air Force
    The Egyptian Air Force, or EAF , is the aviation branch of the Egyptian Armed Forces. The EAF is headed by an Air Marshal . Currently, the commander of the Egyptian Air Force is Air Marshal Reda Mahmoud Hafez Mohamed...

     has shown interest in the PL-12 as well as the JF-17 Thunder
    JF-17 Thunder
    The PAC JF-17 Thunder , or CAC FC-1 Xiaolong , is a light-weight, single-engine, multi-role combat aircraft developed jointly by the Chengdu Aircraft Industries Corporation of China, the Pakistan Air Force and the Pakistan Aeronautical Complex...

    .

Operators

  • People's Liberation Army Air Force
    People's Liberation Army Air Force
    The People's Liberation Army Air Force is the aviation branch of the People's Liberation Army, the military of the People's Republic of China...

  • People's Liberation Army Navy
    People's Liberation Army Navy
    The People's Liberation Army Navy is the naval branch of the People's Liberation Army , the military of the People's Republic of China. Until the early 1990s, the navy performed a subordinate role to the PLA Land Forces. Since then, it has undergone rapid modernisation...



  • Pakistan Air Force
    Pakistan Air Force
    The Pakistan Air Force is the leading air arm of the Pakistan Armed Forces and is primarily tasked with the aerial defence of Pakistan with a secondary role of providing air support to the Pakistan Army and the Pakistan Navy. The PAF also has a tertiary role of providing strategic air transport...


Specifications

  • Length: 3.93 m (12.89 ft)
  • Body diameter: 203 mm (8 in)
  • Wing span: 670 mm
  • Fin span: 752 mm
  • Launch weight: 199 kg (438 lb)
  • Warhead: HE fragmentation
  • Fuse: Active proximity fuse
  • Guidance: Inertial mid-course and/or datalink updates, with active radar terminal homing
    Active radar homing
    Active radar homing is a missile guidance method in which a guided missile contains a radar transceiver and the electronics necessary for it to find and track its target autonomously...

  • Propulsion: Solid dual-thrust
    Dual-thrust
    In a dual-thrust solid fuel rocket motor, the propellant mass is composed of two different types or densities of fuel. In the case of a tandem dual-thrust motor, the fuel closest to the rocket nozzle burns fast and the fuel further into the motor's body burns slower...

     rocket motor
  • Maximum Range: 70+ km
  • Minimum Range: 1 km
  • Maximum g-force: > 38 g
  • Maximum Altitude: 21 km
  • Maximum Speed: > Mach
    Mach number
    Mach number is the speed of an object moving through air, or any other fluid substance, divided by the speed of sound as it is in that substance for its particular physical conditions, including those of temperature and pressure...

     4
  • No Escape Zone (NEZ): 45 km (look-up) or 35 km (look-down) against target with RCS of 3 sq. metres

External links

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