LS PGB

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Lei Shi (Template:Zh), abbreviated as LS, is a series of precision-guided munitions (PGM) developed by Luoyang Optoelectro Technology Development Center (LOTDC),[1][2] a subsidiary of Aviation Industry Corporation of China (AVIC). Leishi is a type of guidance kit that can modify existing unguided bomb into guided standoff munition. These maneuverable guided bombs are similar in roles to the American Joint Direct Attack Munition (JDAM) kit but with longer ranges.

Development

File:JF17-10-113-1742.jpg
A model of the LS-6 precision-guided glide bomb (left). The folding wings on top of the bomb can be seen, as well as the tail kit, both colored white.

Background

The Chinese development of the precision-guided bomb began in the 1970s after the Chinese military observed the American usage of Paveway in the Vietnam War. Factory 624, later known as the Harbin Jiancheng Group, a subsidiary of Norinco, began the development process in 1974, with prototypes completed in 1980. Between 1984 and 1985, the guided bomb was tested via ground laser designation, while in 1986, the bomb was tested with an aerial laser targeting pod prototype. Prototypes were tested on the H-5 bomber. The project was canceled in the late 1980s due to budgetary issues.[3] The prototype guided bomb in the canceled project was designated Type 7712.[4]

A new laser-guided bomb project was initiated in 1992 after Chinese observation of the Gulf War. This project received more budgetary, human, and political resources. The bomb system was tasked to the Luoyang-based China Airborne Missile Academy (CAMA, 612th Research Institute), and the targeting pod was tasked to the Luoyang Optoelectro Technology Development Center (LOTDC, 613th Research Institute), and the production was tasked to the Factory 624 (Harbin Jiancheng Group). The final product was LS-500J laser-guided bomb, later renamed LT-2 laser-guided bomb for export.[3] LS-500J (LT-2) was one of the most widely used guided bombs in China's arsenal.[3][5]

Eventually, the original LS-500J branched out to the other series of guided bombs,[3] which were manufactured by different defense factories and institutions:[6]

LS-6 series

LS-6 precision-guided bomb was initially revealed at the 2006 Zhuhai Airshow.[15][16]

LS kit is a strap-on upgrade package to provide general-purpose bomb with range extension and precision strike capabilities.[17] The kit consists of two modules: the guidance module and gliding wings. The guidance module includes inertial/satellite guidance, typically mounted in the tail cone of the weapon, and electro-optical seeker with scene matching area correlator[18] or laser guidance seeker, which is mounted at the tip of the bomb.[17] The gliding module, including the folding wings and cruciform tail control surfaces, is made of composite material and comes in different versions for different sizes of gravity bomb, such as Template:Cvt, Template:Cvt, Template:Cvt, and Template:Cvt.[17] The range for the Template:Cvt bomb is Template:Cvt at Template:Cvt with release attitude of Template:Cvt.[18] A miniaturized turbojet kit can be mounted at the aft end, boosting LS-6's range to Template:Cvt.[19]

LS kit series uses the GJV289A standard, the Chinese equivalent of MIL-STD-1553B. The adaptation of such military standards means that the weapon can be readily deployed on any Western platform. The Template:Cvt and Template:Cvt variants of the LS-6 are externally similar to the GBU-39 Small Diameter Bomb, which can be carried in the internal weapons bays of stealth fighters such as the Chengdu J-20.[20]

Variants

Type 7712
Prototype laser-guided bomb. Marketed as LT-1 for export by Norinco in the early 1990s. The marketing was halted after the project cancellation.[21]
LS-500J
First generation of the laser-guided bomb. Renamed to LT-2 for export.[22] In PLAAF service, the LS-500J (LT-2) is designated K/YGB500.[23]
LS-6/500
LS-6 glide bomb kit with a pair of horizontal wings mounted on a Template:Cvt unguided bomb. The guidance module consists of GNSS and INS.[18]
LS-6/250
LS-6 glide bomb kit with a pair of horizontal wings mounted on a Template:Cvt unguided bomb. The guidance module consists of GNSS and INS.[18]
LS-6/100
LS-6 glide bomb with compact control surfaces and a nose-mounted electro-optical seeker mounted on a Template:Cvt unguided bomb. The guidance module consists of INS and satellite guidance, with either laser-homing or scene-matching area correlator terminal seeker.[18][24]
LS-6/50
LS-6 glide bomb with compact control surfaces and a nose-mounted electro-optical seeker mounted on a Template:Cvt unguided bomb. The guidance module consists of INS and satellite guidance, with either laser-homing or scene-matching area correlator terminal seeker.[18][24]

Specifications

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Bomb specifications.[17][18][25]
LS-6/500
Launch mass Approx. Template:Cvt
Warhead Template:Cvt HE Blast
Length Approx. Template:Cvt
Diameter Template:Cvt
Span Approx. Template:Cvt
Range Template:Cvt at Template:Cvt
Template:Cvt at Template:Cvt
Release altitude Template:Cvt
Release speed Template:Cvt
Steering Cruciform trailing edges + folded high-wing
Guidance GNSS + INS
Accuracy (CEP) ≤15m

Operator

See also

References

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