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Bombs, grenades & mines2004—presentProfile in progress
LGB / Precision-guided bomb
LT PGB is a lGB / Precision-guided bomb originating in China. Reported operators include People's Liberation Army Air Force.
ChinaLGB / Precision-guided bomb
China
2004—present
People's Liberation Army Air Force
2004—present
570kg
3580mm
380mm
950mm (tail fin)
various gravity bombs
Impact / Proximity
≥230m/s (at launch)
laser guidance
aerial platforms
LT-2 was the first bomb in the LT series, which was renamed from the LS-500J guided bomb. The LT-2 is a strap-on bomb kit that can be mounted on any 500 kg (1,100 lb) class general-purpose bomb . The seeker is an annular airfoil seeker with a quadrant detection assembly similar to that of Paveway I and II. The tail kit is in a similar configuration to the Paveway I. The guidance system is unstabilized in roll, relying on bang–bang control like the Paveway II, and the cruciform tail assembly provides maneuverability.
LT-3 is a sophisticated upgrade of LT-2. The LT-3 has a dual-mode seeker, combining a satellite / inertial guidance tail kit with a gimbaled laser guidance module. Weighing 564 kg (1,243 lb) and ranging 24 km (13 nmi), the warhead can penetrate 1.5 meters thick reinforced concrete . The mounting bracket and tail structure of the LT-3 is derived from the LS-6 250kg version, though the two bombs have different guidance methods and masses. The concept of the LT-3 is very close to the Paveway III or GBU-55 Laser JDAM . According to the Industry Corporation of China (AVIC) representative at Zhuhai Airshow 2008, the upgrade was substantial. The LT-3 uses a wide field-of-view (FOV) laser beam-riding gimbal, similar to Paveway III. In contrast, the older LT-2 relies on the bang–bang control system that was common in the 1960s on bombs such as Paveway I.
In the 1990s, multiple targeting pods were developed for the laser-guided bombs. One of the earliest types was called Blue Sky ( Chinese : 蓝天 ; pinyin : Lán tiān ), and was publicly revealed in the late 1990s. The Blue Sky targeting pod is externally similar to the American LANTIRN . The targeting range for LT-2 is 15 km (8.1 nmi). Alternatively, LT PGB can be guided by forward-looking targeting pods, such as FILAT .
LT-2 : Laser-guided 500 kg (1,100 lb) bombs, originally called LS-500J. In PLAAF service, LS-500J (LT-2) is designated K/YGB500.
LT-3 : Laser + satellite / inertial navigation dual moddule guided 500 kg (1,100 lb) bombs with a wide FOV seeker, incorporating technologies from LS-6 series.
Reference text from Wikipedia contributors, used under CC BY-SA 4.0.
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