Initial Operational Capability (IOC):
Also Known As: GBU-31(V)1, GBU-31(V)3 and GBU-31B
Origin: United States of America
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Description: The Joint Direct Attack Munition (JDAM) is a tail kit which converts free fall unguided bombs into precision-guided weapons. The tail section contains a GPS/INS guidance system that guides the JDAM bomb through the selected target. The JDAM bombs is available for all the fighting aircraft of the US inventory (B-1B, B-2A, B-52H, F-16C/D, F/A-18C/D, F/A-18E/F, F-15E, F/A-22, F-35, A-10A, S-3, F-117, AV-8B, and F-14A/B/D) as well as aircraft in development and foreign aircraft. The JDAM were used for the first time during operation Allied Force in 1999.
The JDAM bombs can be released in day/night and adverse weather at up to 15 miles away from the selected target. The Pentagon claims that JDAM bomb accuracy is about 13 meters CEP (Circular Error Probable), but according to Boeing sources JDAM accuracy is 9.6 meters CEP. Without the GPS guidance system using only the INS guidance system JDAM accuracy is 30 meters. The advanced capabilities of these smart bombs make possible to attack multiple targets simultaneously as it has been demonstrated during operational representative tests carried out by a B-2 Spirit dropping 16 JDAMs against several targets in a single mission.
The GBU-31 bomb can use the BLU-109 or the Mk-84 warhead to destroy bunkers and hardened targets.
Boeing delivered the 100,000th JDAM tail kit on December 2, 2004, to the US military since production started in 1998. Initial production was 900 tail kits per year, but as of December 2004 and following 9/11 terrorist attacks, tail kit production boosted and stands at 3,000 units per month. These tail kits provide precision strike capability to Mk 80 series bombs through GPS-aided navigation. To date, the US Air Force has received more than 50,000 JDAMs, the US Navy roughly 37,000 units, and the remaining tail kits (10,000?) were produced for international customers.
Boeing was awarded JDAM Lot 9 production contract valued at $609 million on 31-March-2005. The US Air Force Lot 9 contract called for 30,072 JDAM tail kits with 60 percent of those kits to be produced for 500-pound bombs (GBU-38). As of March 2005, Boeing has produced more than 112,000 JDAM tail kits. In October 2005 Australia's Department of Defense awarded Boeing a contract to provide 500-2000 pounds JDAM weapon systems in support of the Royal Australian Air Force's F/A-18 combat aircraft fleet.
In February 2006 Norway signed for the JDAM bomb to equip its F-16 fighter aircraft fleet providing all-weather, autonomous and accurate strike capability against a broad spectrum of targets. With this decision Norway became the 14th international and the fifth European customer for JDAM. In parallel, Boeing released that 140,000 JDAM bomb kits had been delivered to the US and international customers since production series started in 1998. In early March 2006 Boeing was awarded JDAM Lot 10 production contract for 10,000 JDAM tail kits for 500-, 1,000-, and 2,000-pound bombs owned by the US Air Force and the US Navy. This new contract was valued at $240 million and tail kits deliveries were slated for completion by February 2008.
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