Jump to content

Joint Direct Attack Munition

From Wikipedia, the free encyclopedia
(Redirected from GBU-31)
Joint Direct Attack Munitions
(JDAM)
A Mk 84 bomb fitted with GBU-31 JDAM kit
Place of originUnited States
Service history
In serviceSince 1999
Used bySee operators
Wars
Production history
DesignerMcDonnell Douglas
DesignedLate 1980s–1996
ManufacturerBoeing Defense, Space & Security
Unit costUS $21,000–$36,000[note 1]
VariantsSee variants
Specifications (see specifications)
Launch
platform
F-15E, F-16, F/A-18, F/A-18E/F, AV-8B, A-10, B-1B, B-52H, F-22, B-2A, F-35, MQ-9, MiG-29, Su-27, Tornado, Gripen
ReferencesJanes[3][4] & The War Zone[1][2]

The Joint Direct Attack Munition (JDAM) is a guidance kit that converts unguided bombs, or "dumb bombs", into all-weather precision-guided munitions (PGMs). JDAM-equipped bombs are guided by an integrated inertial guidance system coupled to a Global Positioning System (GPS) receiver, giving them a published range of up to 15 nautical miles (28 km). JDAM-equipped bombs range from 500 to 2,000 pounds (230 to 910 kg).[5] The JDAM's guidance system was jointly developed by the United States Air Force and United States Navy, hence the "joint" in JDAM.[6] When installed on a bomb, the JDAM kit is given a GBU (Guided Bomb Unit) identifier, superseding the Mark 80 or BLU (Bomb, Live Unit) nomenclature of the bomb to which it is attached.

The JDAM is not a stand-alone weapon; rather it is a "bolt-on" guidance package that converts unguided gravity bombs into PGMs. The key components of the system are a tail section with aerodynamic control surfaces, a (body) strake kit, and a combined inertial guidance system and GPS guidance control unit.[6]

The JDAM was meant to improve upon laser-guided bomb and imaging infrared technology, which can be hindered by bad ground and weather conditions. Laser seekers are now being fitted to some JDAMs.[7]

From 1998 to November 2016, Boeing completed more than 300,000 JDAM guidance kits. In 2017 it built more than 130 kits per day.[8] As of January 2024, 550,000 kits had been produced.[9]

History

[edit]

Development

[edit]
U.S. Navy sailors attach a JDAM kit aboard the USS Constellation (CV-64), March 2003.

The U.S. Air Force's bombing campaign during the Persian Gulf War's Operation Desert Storm was less effective than initially reported, in part because it had no precision bombs that were accurate in all types of weather. Laser guidance packages on bombs proved exceptionally accurate in clear conditions, but amid airborne dust, smoke, fog, or cloud cover, they had difficulty maintaining "lock" on the laser designation. Research, development, testing and evaluation (RDT&E) of an "adverse weather precision guided munition" began in 1992. Several proposals were considered, including a radical concept that used GPS.[10]

At the time, there were few GPS satellites and the idea of using satellite navigation for real-time weapon guidance was untested and controversial. To identify the technical risk associated with an INS/GPS guided weapon, the Air Force created in early 1992 a rapid-response High Gear program called the "JDAM Operational Concept Demonstration" (OCD) at Eglin Air Force Base. Honeywell, Interstate Electronics Corporation, Sverdrup Technology, and McDonnell Douglas were hired to help the USAF 46th Test Wing demonstrate the feasibility of a GPS weapon within one year. The OCD program fitted a GBU-15 guided bomb with an INS/GPS guidance kit and on 10 February 1993, dropped the first INS/GPS weapon from an F-16 on a target 88,000 feet (27 km) downrange. Five more tests were run in various weather conditions, altitudes, and ranges.[10] The OCD program demonstrated a 36-foot (11 m) Circular Error Probable (CEP).

The first flight test of the first GPS-guided weapon resulted in a direct hit on a target at Eglin Air Force Base on 10 February 1993.

The first JDAM kits were delivered in 1997, with operational testing conducted in 1998 and 1999. During testing, over 450 JDAMs were dropped achieving a system reliability in excess of 95% with a published accuracy under 33-foot (10 m) CEP.[11] In addition to controlled parameter drops, the testing and evaluation of the JDAM also included "operationally representative tests" consisting of drops through clouds, rain and snow with no decrease in accuracy from clear-weather tests. In addition, there have been tests involving multiple weapon drops with each weapon being individually targeted.[12]

Ex-Schenectady (LST-1185) damaged by seven 2,000-pound JDAMs during USAF exercise Resultant Fury in November 2004.

JDAM and the B-2 Spirit stealth bomber made their combat debuts during Operation Allied Force. The B-2s, flying 30-hour, nonstop, round-trip flights from Whiteman Air Force Base, Missouri, delivered more than 650 JDAMs during Allied Force. An article published in the Acquisition Review Journal in 2002 cites that "during Operation Allied Force ... B-2s launched 651 JDAMs with 96% reliability and hit 87% of intended targets..."[13] Due to the operational success of the original JDAM, the program expanded to the 500-pound (230 kg) Mark 82 and 1,000-pound (450 kg) Mark 83, beginning development in late 1999. As a result of lessons from Operation Enduring Freedom and Operation Iraqi Freedom, both the US Navy and US Air Force pursued improvements to the kits such as better GPS accuracy as well as a precision seeker for terminal guidance for use against moving targets.

JDAM bombs are inexpensive compared to alternatives such as cruise missiles. The original cost estimate was $40,000 each for the tail kits; however, after competitive bidding, contracts were signed with McDonnell Douglas (later Boeing) for delivery at $18,000 each. Unit costs, in current-year dollars, have since increased to $21,000 in 2004 and $27,000 by 2011.[14] To the cost of the tail kit should be added the costs of the Mk80-series iron bomb, the fuze and proximity sensor which bring the overall weapon cost to about $30,000. For comparison, the newest Tomahawk cruise missile, dubbed the Tactical Tomahawk, costs nearly $730,000 (FY 2006).[15][16]

Operational use

[edit]
JDAMs loaded under the left wing of an F-16 Fighting Falcon, with a LITENING II Targeting Pod visible beneath the fuselage

Guidance is facilitated through a tail control system and a GPS-aided inertial navigation system (INS). The navigation system is initialized by transfer alignment from the aircraft that provides position and velocity vectors from the aircraft systems. Once released from the aircraft, the JDAM autonomously navigates to the designated target coordinates. Target coordinates can be loaded into the aircraft before takeoff, manually altered by the aircrew in flight prior to weapon release, or entered by a datalink from onboard targeting equipment, such as the LITENING II or "Sniper" targeting pods. In its most accurate mode, the JDAM system will provide a minimum weapon accuracy CEP of 16 feet (5 m) or less when a GPS signal is available. If the GPS signal is jammed or lost, the JDAM can still achieve a 98-foot (30 m) CEP or less for free flight times up to 100 seconds.[6]

The introduction of GPS guidance to weapons brought several improvements to air-to-ground warfare. The first is a real all-weather capability since GPS is not affected by rain, clouds, fog, smoke, or artificial obscurants. Previous precision guided weapons relied on seekers using infrared, visual light, or a reflected laser spot to "see" the ground target. These seekers were not effective when the target was obscured by fog and low altitude clouds and rain (as encountered in Kosovo), or by dust and smoke (as encountered in Desert Storm).[citation needed]

The second advantage is an expanded launch acceptance region (LAR). The LAR defines the region that the aircraft must be within to launch the weapon and hit the target. Non-GPS based precision guided weapons using seekers to guide to the target have significant restrictions on the launch envelope due to the seeker field of view. Some of these systems (such as the Paveway I, II, and III) must be launched so that the target remains in the seeker field of view throughout the weapon trajectory (or for lock-on-after-launch engagements, the weapon must be launched so that the target is in the field of view during the terminal flight). This requires the aircraft to fly generally straight at the target when launching the weapon.

This restriction is eased in some other systems, such as the GBU-15 and the AGM-130, through the ability of a Weapon System Operator (WSO) in the aircraft to manually steer the weapon to the target. Using a WSO requires a data link between the weapon and the controlling aircraft and requires the controlling aircraft to remain in the area (and possibly vulnerable to defensive fire) as long as the weapon is under manual control. Since GPS-based flight control systems know the weapon's current location and the target location, these weapons can autonomously adjust the trajectory to hit the target. This allows the launch aircraft to release the weapon at very large off-axis angles including releasing weapons to attack targets behind the aircraft.[citation needed]

JDAMs prior to being loaded for operations over Iraq, 2003

The third advantage is a true "fire-and-forget" capability in which the weapon does not require any support after being launched. This allows the launching aircraft to leave the target area and proceed to its next mission immediately after launching the GPS guided weapon.[citation needed]

Another important capability provided by GPS-based guidance is the ability to completely tailor a flight trajectory to meet criteria other than simply hitting a target. Weapon trajectories can be controlled so that a target can be impacted at precise headings and vertical angles. This provides the ability to impact perpendicular to a target surface and minimize the angle of attack (maximizing penetration), detonate the warhead at the optimum angle to maximize the warhead effectiveness, or have the weapon fly into the target area from a different heading than the launch aircraft (decreasing the risk of detection of the aircraft). GPS also provides an accurate time source common to all systems; this allows multiple weapons to loiter and impact targets at preplanned times and intervals.[citation needed]

In recognition of these advantages, most weapons including the Paveway, GBU-15, and the AGM-130 have been upgraded with a GPS capability. This enhancement combines the flexibility of GPS with the superior accuracy of seeker guidance.[citation needed]

GBU-38 explosions in Iraq in 2008.

Despite their precision, JDAM employment has risks. On 5 December 2001, a JDAM dropped by a B-52 in Afghanistan nearly killed Hamid Karzai while he was leading anti-Taliban forces near Sayd Alim Kalay alongside a US Army Special Forces (SF) team. A large force of Taliban soldiers had engaged the combined force of Karzai's men and their American SF counterparts, nearly overwhelming them. The SF commander requested Close Air Support (CAS) to strike the Taliban positions in an effort to stop their advance. A JDAM was subsequently dropped, but instead of striking the Taliban positions, it struck the Afghan/American position, killing three and injuring 20. An investigation of the incident determined that the U.S. Air Force Tactical Control Party (TACP) attached to the Special Forces team had changed the battery in the GPS receiver at some point during the battle, thereby causing the device to return to "default" and "display its own coordinates." Not realizing that this had occurred, the TACP relayed his own coordinates to the delivery aircraft.[17][18]

On 5 May 2023, during the 2022 Russian invasion of Ukraine, MSN reported that Russia was able to jam the GPS guidance system to cause JDAMs to miss their targets. The leaked Pentagon document described the JDAMs as being particularly susceptible to the disruption.[19]

On 6 June 2023, the Royal United Services Institute (RUSI) released a commentary by an electronic warfare (EW) expert on the jamming of JDAMs by Russian forces. The paper notes that the Russian R-330Zh Zhitel has had impacted GPS signals that JDAMs rely on. GPS signals are "very weak by the time they have travelled the 10,900 nautical miles (20,200 km) from the satellite to Earth", making them "easy to jam with comparatively little power". In the "early 2000s" the US military rolled out the Selective availability anti-spoofing module (SAASM), along with encrypted military M-code GPS signaling to ensure that the JDAM only accepts signals with correct encryption and rejects all other signals. However, according to one electronic warfare (EW) expert who spoke to RUSI, despite the mentioned steps to increase jamming resiliency, the "sheer brute force" of a powerful jamming signal can prevent the JDAM's global navigation satellite system (GNSS) receiver from obtaining the encrypted signal.

Counter-EW systems, while classified, might allow a JDAM to recognize a jamming signal and its direction and "block out" signals coming from that direction. A GNSS receiver will "typically need to 'see' – that is have an uninterrupted Line-of-Sight (LOS) with – at least four satellites", and will "often" have more satellites available to it. Thus, blocking signals from one direction might not affect the receiver's ability to "see" other satellites. Russian forces may choose to respond by placing more jammers in order to deny a line of sight to the satellites that it requires. Russian EW units might also have the ability to spoof or fake the M-Code that it confuses the JDAM as to its location and time. Ukrainian forces have been able to locate Russian jammers and hit them with "kinetic" attacks such as artillery. Several Russian EW units have been targeted and lost equipment.[20][21][22]

On 13 August 2024, Ukrainian Su-27 launched a JDAM at a Russian command post in Tetkino, which was reportedly destroyed.[23]

In December 2023, the WSJ report stated that US arms shipments to Israel since the start of the Israel–Hamas war included approximately 3,000 JDAMs.[24] Israeli F-15I fighter jets are believed to have used BLU-109 bunker buster bombs with JDAM guidance kits in the strikes that killed Hezbollah leader Hassan Nasrallah in Beirut, Lebanon on 27 September 2024.[25][26]

Upgrades

[edit]
A DSU-33 Airburst sensor (right)

Experience during Operation Enduring Freedom and Operation Iraqi Freedom led US air power planners to seek additional capabilities in one package, resulting in ongoing program upgrades to place a precision terminal guidance seeker in the JDAM kit.[27] The Laser JDAM (LJDAM), as this upgrade is known, adds a laser seeker to the nose of a JDAM-equipped bomb, enabling it to engage moving targets. The laser seeker is a cooperative development between Boeing's Defense, Space and Security unit and Israel's Elbit Systems.[28]

It is called the Precision Laser Guidance Set (PLGS) by Boeing and consists of the laser seeker itself, now known as DSU-38/B, and a wire harness fixed under the bomb body to connect the DSU-38/B with the tail kit. During FY2004, Boeing and the U.S. Air Force began testing of the laser guidance capability for JDAM, with these tests demonstrating that the system is capable of targeting and destroying moving targets.[29] This dual guidance system retains the ability to operate on GPS/INS alone, if laser guidance is unavailable, with the same accuracy of the earlier JDAM.

A GBU-54 laser seeker

In June 2007, Boeing announced that it had been awarded a $28 million contract by the U.S. Air Force to deliver 600 laser seekers (400 to the Air Force and 200 to the Navy) by June 2009.[30] According to the Boeing Corporation, in tests at Nellis Air Force Base, Nevada, Air Force F-16 Fighting Falcons and F-15E Strike Eagles dropped twelve 500 lb (230 kg) LJDAMs that successfully struck high-speed moving targets. Using onboard targeting equipment, the launch aircraft self-designated, and self-guided their bombs to impact on the targets. In addition to the LJDAM kits, Boeing is also testing under a Navy development contract, an anti-jamming system for the JDAM, with development expected to be completed during 2007, with deliveries to commence in 2008.[31] The system is known as the Integrated GPS Anti-Jam System (IGAS).

In July 2008 Germany signed a contract with Boeing to become the first international customer of LJDAM. Deliveries for the German Air Force began in mid-2009. The order also includes the option for further kits in 2009.[32]

Boeing announced in September 2008 that it had conducted demonstration flights with the LJDAM loaded aboard a B-52H.[33][34]

The GBU-54 LJDAM made its combat debut in August 2008 in Iraq when an F-16 from the 77th Fighter Squadron engaged a moving vehicle in Diyala province.[35] The GBU-54 LJDAM made its combat debut in the Afghan theater by the 510th Fighter Squadron in October 2010.[36]

In September 2012, Boeing began full-rate production of Laser JDAM for US Navy and received a contract for more than 2,300 bomb kits.[37]

In November 2014, the U.S. Air Force began development of a version of the GBU-31 JDAM intended to track and attack sources of electronic warfare jamming directed to disrupt the munitions' guidance. The Home-on-Jam seeker works similar to the AGM-88 HARM to follow the source of a radio-frequency jammer to destroy it.[38]

JDAM Extended Range

[edit]
JDAM-ER attached to a modified pylon under the wing of a Ukrainian Air Force Su-27

In 2006, the Australian Defence Science and Technology Organisation in conjunction with Boeing Australia successfully tested extended range 500 lb (230 kg) JDAM variants at the Woomera Test Range.[39]

In 2009, Boeing announced that it will jointly develop the Joint Direct Attack Munition Extended Range (JDAM-ER) 2,000 lb (910 kg) version with South Korea.[40] The wing kit will triple the range of JDAM to 80 kilometres (50 mi) for the same accuracy, and will cost $10,000 per unit.[41] The first prototypes were completed in 2010 or 2011.

The wing kits of Australia's JDAM-ER weapons will be built by Ferra Engineering. First tests were to be conducted in 2013 with production orders in 2015.[42]

In 2010, Boeing proposed adding a jet engine tailkit to the JDAM-ER for 10 times greater range.[43][44] The U.S. Air Force initially showed no interest in the concept, but by 2020 Boeing believed the service had regained interest in acquiring low-cost cruise missiles. The Powered JDAM combines a 500 lb (230 kg) bomb with a wing kit and a propulsion module, giving it the range of more sophisticated missiles through a low-cost engine while being cheaper though not having a stealthy shape or the ability to conduct low-altitude flights. Though less survivable, Powered JDAMs could be networked to provide a cheap standoff weapon to overwhelm air defense systems.[45][46]

In late February 2023, it was revealed that JDAM-ERs would be provided to the Ukrainian Air Force as part of an arms package during the Russian invasion of Ukraine. With a standoff range of up to 72 km (45 mi), it delivers similar range to M142 HIMARS rockets, but with heavier warheads and at a lower cost. Although Russian air defenses force Ukrainian aircraft to fly at extremely low levels, they could pop up and release the bombs on a lofted trajectory to glide toward a target. Ukrainian platforms needed modifications to employ the weapons, as had been done with the AGM-88 HARM.[47][48] The JDAM-ER was already in use by the Ukrainians by the time of the reports of its delivery.[49]

Yuriy Ignat, a spokesman for Air Force Command of the Ukrainian Armed Force, told Ukrainian TV that: "These bombs (JDAM) are slightly less powerful, but extremely accurate. I would like to have more such bombs for success at the front." This comment might be a reference to the fact that these bombs are 500 pounds. As to how many were supplied one US official said "enough to do a couple of strikes."[50]

On 26 April, the first recorded use of JDAMs, by the Ukrainian Air Force, occurred in Bakhmut. Four 500 pound JDAMs were dropped on a high rise building in the Russian controlled part of the city, the aircraft used appear to be MiG-29s. Both sides have destroyed high rise buildings in Bakhmut to prevent them from being used "as ammo dumps, fighting positions and observation posts."[51]

In response to Russian use of electronic warfare to jam GPS-guided weapons, in May 2024 the U.S. awarded a contract for the acquisition of Home-on GPS Jam seekers to be integrated into JDAM wing kits for Ukraine.[52]

Anti-ship deployments

[edit]
An inert JDAM Quickstrike Extended Range mine is attached to a U.S. Air Force B-52H Stratofortress

In September 2014, the U.S. Air Force performed the first-ever drop of a precision-guided aerial sea mine, consisting of a Quickstrike mine equipped with a JDAM kit. The Quickstrike is a Mark 80-series general-purpose bomb with the fuze replaced with a target detection device (TDD) to detonate it when a ship passes within lethal range, a safe/arm device in the nose, and a parachute-retarder tailkit in the back. Dropping of naval mines has historically been challenging, as the delivery aircraft has to fly low and slow, 500 ft (150 m) at 320 knots (370 mph; 590 km/h), making it vulnerable to hostile fire. The first aerial mining mission of Operation Desert Storm resulted in the loss of an aircraft, and the U.S. has not flown any combat aerial minings since.[53][54][55]

The Quickstrike-J is a JDAM-equipped 1,000 lb (450 kg) or 2,000 lb (910 kg) version, and the GBU-62B(V-1)/B Quickstrike-ER is a 500 lb (230 kg) or 2,000 lb (910 kg) gliding version based on the JDAM-ER, which has a range of 40 nmi (46 mi; 74 km) when launched from 35,000 ft (11,000 m). Precision airdropping of naval mines is the first advance in aerial mine delivery techniques since World War II. It can increase the survivability of delivery aircraft, since instead of making multiple slow passes at low altitude directly over the area, an aircraft can release all of their mines in a single pass from a standoff distance and altitude. This increases the mines' effectiveness, since instead of laying a random pattern of mines in a loosely defined area, they can be laid directly into harbor mouths, shipping channels, canals, rivers, and inland waterways, reducing the number of mines required and enhancing the possibility of blocking ship transit corridors. Enemy naval ports can be blockaded, and a defensive minefield quickly planted to protect areas threatened by amphibious assault.[53][54][55]

A direct-attack bomb version called "Quicksink" was tested in 2022,[56] and were successfully used to sink USS Dubuque (LPD-8) and USS Tarawa (LHA-1) during the RIMPAC 2024 exercise.[57][58]

Integration

[edit]
JDAMs loaded onto a Heavy Stores Adaptor Beam (HSAB) under the wing of a B-52H Stratofortress
2,000 lb GBU-31s ripple drop in Afghanistan by two F-15Es, 2009.

Current

[edit]

JDAM is currently compatible with:

Past

[edit]

JDAM was compatible with the following aircraft:

Operators

[edit]
A map with JDAM operators in blue

Current operators

[edit]

Future operators

[edit]

Specifications

[edit]
Bomb specifications[90][91]
GBU-38 GBU-54 JDAM-ER GBU-32 GBU-55 GBU-31 GBU-56
Warhead Mark 82 Mark 83 Mark 84 & BLU-109
Launch weight 559 lb (253.6 kg) 575–591 lb (260.8–268 kg) 498 lb (226 kg) 1,015 lb (460.5 kg) 1,047 lb (475 kg) (est) 2,040–2,120 lb (925.4–961.4 kg) 2,120–2,135 lb (961.6–968.4 kg)
Length 7 ft 8.6 in (2.352 m) 7 ft 10 in (2.38 m) Unknown 9 ft 11.5 in (3.035 m) 10 ft (3.05 m) (est) 12 ft 9 in – 12 ft 5 in (3.879–3.774 m) 12 ft 8 in (3.85 m)
Span 14 in (356 mm) 17 in (431.8 mm) Unknown 19.6 in (498 mm) 25 in (635 mm) 25.3 in (642.6 mm)
Lug spacing 14 in (356 mm) 30 in (762 mm)
Guidance
type 		GPS, INS GPS, INS, SAL GPS, INS GPS, INS, SAL GPS, INS GPS, INS, SAL
Max range 13 nmi (24 km) 39.1 nmi (72.5 km) 13 nmi (24 km)
Accuracy (CEP) GPS: 16 ft 5 in (5 m)
INS: 98 ft 5 in (30 m)

Variants

[edit]
USAF artist rendering of JDAM kits fitted to Mk 84, BLU-109, Mk 83, and Mk 82 unguided bombs.
TUBITAK-SAGE KGK wing-assisted guidance

Similar systems

[edit]

See also

[edit]

Footnotes

[edit]
  1. ^ In the 2021 fiscal year the USAF paid an average US $21,000 per JDAM kit and the USN an average US $22,208 per JDAM kit for orders within their respective base budgets, laser JDAM kits were included in these averages. In the same year, orders for kits through the supplemental Overseas Contingency Operations budget were an average unit cost of $36,000 for the USAF and $23,074 for the USN.[1][2]

References

[edit]
  1. ^ a b Trevithick, Joseph (18 February 2020). "Here Is What Each Of The Pentagon's Air-Launched Missiles And Bombs Actually Cost". The Drive. Archived from the original on 24 November 2023. Retrieved 28 August 2023.
  2. ^ a b Newdick, Thomas; Rogoway, Tyler (15 December 2022). "What Joint Direct Attack Munitions Could Do For Ukraine". The Drive. Archived from the original on 16 December 2023. Retrieved 28 August 2023.
  3. ^ Janes (1 June 2023), "GBU-31/32/38 Joint Direct Attack Munition (JDAM)", Janes Weapons: Air Launched, Coulsdon, Surrey: Jane's Group UK Limited., retrieved 28 August 2023
  4. ^ Janes (30 May 2023), "GBU-54/55/56 Laser Joint Direct Attack Munition (LJDAM)", Janes Weapons: Air Launched, Coulsdon, Surrey: Jane's Group UK Limited., retrieved 28 August 2023
  5. ^ Hansen, Ryan (17 March 2006). "JDAM continues to be warfighter's weapon of choice". U.S. Air Force. Archived from the original on 6 September 2021. Retrieved 27 July 2007.
  6. ^ a b c "Joint Direct Attack Munition GBU- 31/32/38". U.S. Air Force. 18 June 2003. Archived from the original on 28 December 2023. Retrieved 1 April 2014.
  7. ^ "Laser Guided JDAM Debuts in Iraq". Defense Update. 27 August 2007. Archived from the original on 25 September 2023. Retrieved 5 October 2010.
  8. ^ Bogan, Jesse (27 January 2017). "Boeing boosts production of precision-guided bomb kits made in St. Charles to fight ongoing wars by air". St Louis Post-Dispatch. Archived from the original on 4 April 2023.
  9. ^ "Boeing: Boeing - Precision Engagement Systems". www.boeing.com. Retrieved 2024-01-22.
  10. ^ a b INS/GPS Operational Concept Demonstration (OCD) High Gear Program, IEEE Aerospace and Electronic Systems Magazine, 8 August 1994.
  11. ^ Davis, Charles H. (19 April 2000). "JDAM: The Kosovo Experience and DPAS" (PDF). The Boeing Company. Archived from the original (PDF) on 26 September 2007. Retrieved 2007-09-01.
  12. ^ "U.S. Air Force B-2 Bomber Drops 80 JDAMS in Historic Test". Boeing. 17 September 2003. Archived from the original on 26 September 2023. Retrieved 2 September 2007.
  13. ^ a b Myers, Dominique (2002). "Acquisition Reform-Inside The Silver Bullet" (PDF). Acquisition Review Journal. IX (Fall 2002): 312–322. Archived from the original (PDF) on 26 September 2007. Retrieved 1 September 2007.
  14. ^ "Air Force Justification Book Procurement of Ammunition, Air Force" (PDF). Department of Defense Fiscal Year (FY) 2012 Budget Estimates. US Air Force. Archived from the original (PDF) on 15 December 2011. Retrieved 29 December 2011.
  15. ^ Grier, Peter (1 September 2006). "The JDAM Revolution". Air & Space Forces Magazine. Archived from the original on 31 May 2023.
  16. ^ "BGM-109 Tomahawk - Tomahawk Variants". Global Security. Archived from the original on 26 March 2023.
  17. ^ Burgess, Mark (12 June 2002). "Killing Your Own: The Problem of Friendly Fire During the Afghan Campaign". CDI. Archived from the original on 17 March 2010. Retrieved 5 October 2010.
  18. ^ Ladkin, Peter B. "Checking and Comparison of WB-Graphs" (PDF). University of Bielefeld. p. 9. Archived (PDF) from the original on 4 April 2023.
  19. ^ Marquardt, Alex; Bertrand, Natasha; Cohen, Zachary (6 May 2023). "Russia's jamming of US-provided rocket systems complicates Ukraine's war effort". CNN. Archived from the original on 14 December 2023.
  20. ^ Malyasov, Dylan (21 April 2023). "Ukrainian forces blow up modern Russian electronic warfare system". Defence Express. Archived from the original on 28 September 2023. Retrieved 26 September 2022.
  21. ^ Withington, Thomas (6 June 2023). "Jamming JDAM: The Threat to US Munitions from Russian Electronic Warfare". Royal United Services Institute. Archived from the original on 8 December 2023. Retrieved 10 June 2023.
  22. ^ Mizokami, Kyle (21 April 2023). "GPS-Guided Bombs Should've Been Ukraine's Ace in the Hole. Then, Russian Jamming Stepped In". Popular Mechanics. Archived from the original on 1 May 2023. Retrieved 10 June 2023.
  23. ^ David Axe (14 August 2024). "Ukrainian Jets Join The Invasion Of Russia's Kursk Oblast—And Blow Up A Russian Command Post". Forbes. Retrieved 14 August 2024.
  24. ^ "US sends 'bunker buster' bombs to Israel for war on Gaza, report says". Al-Jazeera. 2 December 2023.
  25. ^ "Israel likely used U.S.-made 2,000-pound bombs in Nasrallah strike, visuals show". The Washington Post. 29 September 2024.
  26. ^ "US-made 2,000-pound bombs likely used in strike that killed Hezbollah chief Nasrallah, CNN analysis shows". CNN. 30 September 2024.
  27. ^ "Dual Mode Guided Bomb". deagel.com. Archived from the original on 3 March 2016. Retrieved 5 October 2010.
  28. ^ Opall-Rome, Barbara (3 May 2010). "U.S. Backs Israeli Munitions Upgrades". Defense News. Archived from the original on 29 July 2012.
  29. ^ "Boeing Scores Direct Hit in Laser JDAM Moving Target Test". Boeing. 11 July 2006. Archived from the original on 24 May 2011. Retrieved 5 May 2010.
  30. ^ "Boeing Awarded Laser JDAM Contract". Boeing. 11 June 2007. Archived from the original on 17 November 2007. Retrieved 5 October 2010.
  31. ^ "Boeing Completes JDAM Anti-Jamming Developmental Flight Test Program". Boeing. 18 June 2007. Archived from the original on 27 September 2023. Retrieved 5 October 2010.
  32. ^ a b "Boeing Laser JDAM Achieves 1st International Sale". Boeing. 24 July 2008. Archived from the original on 17 February 2015.
  33. ^ "Boeing Laser JDAM Demonstrated on B-52H for 1st Time". Boeing. 15 September 2008. Archived from the original on 9 October 2012.
  34. ^ Kessler, Carrie L. (24 July 2008). "49 TES demonstrates LJDAM for first time". U.S. Air Force 53rd Wing. Archived from the original on 10 January 2024.
  35. ^ "Air Force employs first combat use of laser joint direct attack munition in Iraq". U.S. Air Forces Central. 27 August 2008. Archived from the original on 10 January 2024. Retrieved 27 March 2012.
  36. ^ Nystrom, Tech. Sgt. Drew (1 October 2010). "Vultures make impact with first GBU-54 combat drop in Afghanistan". U.S. Air Forces Central. Archived from the original on 10 January 2024. Retrieved 22 June 2015.
  37. ^ "Boeing Begins Full-Rate Production of Laser JDAM for US Navy". Boeing. 25 September 2012. Archived from the original on 28 January 2022. Retrieved 10 January 2024.
  38. ^ Keller, John (13 November 2014). "Air Force to enable smart weapons to track and kill sources of electronic warfare (EW) jamming". Military Aerospace. Archived from the original on 8 January 2024.
  39. ^ "Tests of Extended range 'smart' bombs". Australian Department of Defence. 12 September 2006. Archived from the original on 9 April 2012.
  40. ^ "Boeing Teams With TAK to Develop Wing Assembly for 2,000-Pound JDAM ER". Boeing. 31 March 2009. Archived from the original on 4 April 2023. Retrieved 10 January 2024.
  41. ^ Hasik, James M. (2008). Arms and Innovation: Entrepreneurship and Alliances in the Twenty-First Century Defense Industry. University of Chicago Press. ISBN 978-0-226-31886-8.
  42. ^ Waldron, Greg (11 March 2013). "Australia's Ferra Engineering to produce JDAM-ER wing kits". FlightGlobal. Archived from the original on 23 March 2020. Retrieved 21 January 2017.
  43. ^ Majumdar, Dave (11 June 2012). "Boeing makes progress developing extended-range JDAM". FlightGlobal. Archived from the original on 2 March 2020. Retrieved 20 April 2017.
  44. ^ Drew, James (11 June 2012). "Sharp-Shooting Bombs, Missiles Shaping The Modern Battlefield". Aviation Week. Archived from the original on 28 May 2023. Retrieved 20 April 2017.
  45. ^ Naegele, Tobias (28 February 2020). "Powered JDAM: Boeing's New Alternative to Cruise Missiles". Air & Space Forces Magazine. Archived from the original on 18 November 2023.
  46. ^ Reim, Garrett (3 March 2020). "Boeing resurrects effort to turn JDAM bomb into cheap cruise missile". FlightGlobal. Archived from the original on 12 April 2020.
  47. ^ Ismay, John (23 December 2022). "What Are JDAMs? And What Will They Do for Ukraine?". New York Times. Archived from the original on 7 November 2023.
  48. ^ Newdick, Thomas; Rogoway, Tyler (22 February 2023). "Wing Kits For Ukraine's JDAM Bombs Would Be A Big Problem For Russia". The Drive. Archived from the original on 16 December 2023.
  49. ^ Trevithick, Joseph (6 March 2023). "Winged JDAM Smart Bombs Are Now Operational In Ukraine". The Drive. Archived from the original on 16 December 2023.
  50. ^ Newdick, Thomas (31 March 2023). "Ukraine Confirms JDAM Precision Bombs Are Now Being Used In Combat". The Drive. Archived from the original on 13 November 2023.
  51. ^ Axe, David (26 April 2023). "A Symphony Of Bomb Blasts: One After Another, Four Ukrainian JDAMs Apparently Strike Russian Positions In Bakhmut". Forbes. Archived from the original on 12 July 2023.
  52. ^ Trevithick, Joseph (May 3, 2024). "JDAM-ER Winged Bombs With Seekers That Home In On GPS Jammers Headed To Ukraine". The War Zone. Retrieved 1 July 2024.
  53. ^ a b Pietrucha, Michael W. (3 December 2015). "New Wrinkles in Maritime Warfare". The Diplomat. Archived from the original on 22 September 2023.
  54. ^ a b Peck, Michael (19 October 2015). "Get Ready, China and Iran: American Naval Super Mines Are Coming". National Interest. Archived from the original on 19 October 2015.
  55. ^ a b Pietrucha, Michael W. "Twenty-First-Century Aerial Mining" (PDF). U.S. Air University. Archived (PDF) from the original on 11 July 2023.
  56. ^ Wetsig, Whitney (4 May 2022). "AFRL technology makes new weapon for sinking ships a reality". U.S. Air Force. Archived from the original on 7 September 2023.
  57. ^ Mahadzir, Dzirhan (July 23, 2024). "U.S., Partners Experiment with New Weapon Systems During RIMPAC 2024 SINKEX". USNI News. US Naval Institute.
  58. ^ Stassis, Cristina (2024-07-25). "USS Tarawa sent to ocean floor in Rim of the Pacific exercise". Navy Times. Retrieved 2024-07-26.
  59. ^ Gonzalez, Gerardo (12 September 2011). "Bringing Back Counter-Insurgency: AT-6B vs. A-29B". Defence Talk. Archived from the original on 20 November 2023. Retrieved 15 January 2012.
  60. ^ a b Strelieff, Jill (27 October 2011). "CF-188 Hornets on Op MOBILE drop first JDAM bombs". Canadian Expeditionary Force Command. Archived from the original on 8 March 2012. Retrieved 27 October 2011.
  61. ^ a b "Joint Direct Attack Munition (JDAM)" (PDF). Boeing. 2015. Archived (PDF) from the original on 21 September 2023. Retrieved 31 July 2022.
  62. ^ Dubey, Ajit K (29 March 2022). "Indian LCA combat aircraft now being armed with American JDAM precision bombing kits". Asian News International. Archived from the original on 29 March 2022. Retrieved 29 March 2022.
  63. ^ Tiwari, Sakshi (11 March 2023). "Ukraine 'Unleashes' US-Made JDAM Smart Bomb For The Very 1st Time; Aims To Integrate With MiG-29 Fighters". The EurAsian Times. Archived from the original on 22 September 2023. Retrieved 15 March 2023.
  64. ^ Newdick, Thomas (24 August 2023). "Ukraine's Su-27s Are Launching JDAM-ER Winged Bombs Too". The Drive. Archived from the original on 4 October 2023. Retrieved 24 August 2023.
  65. ^ "boeing.com Boeing JDAM Wins Australian Competition". Boeing. 19 October 2005. Archived from the original on 11 April 2007. Retrieved 27 July 2007.
  66. ^ "Belgische Luchtmacht/Force Aérienne Belge Belgian Air Force - BAF". F-16.net. Archived from the original on 4 April 2023. Retrieved 30 June 2022.
  67. ^ a b c d e f g h i j k "JDAM Selected Acquisition Report (SAR) - As of FY 2020 President's Budget" (PDF). Executive Services Directorate. Archived (PDF) from the original on 29 October 2023. Retrieved 10 January 2024.
  68. ^ "Flyvevaben Royal Danish Air Force - RDAF". F-16.net. Archived from the original on 21 August 2023. Retrieved 30 June 2022.
  69. ^ "FMS: Third Phase of Finnish F/A-18 MLU". deagel.com. 27 September 2006. Archived from the original on 28 January 2020. Retrieved 27 July 2007.
  70. ^ "Selected Acquisition Report" (PDF). dod.gov. Archived from the original (PDF) on 22 April 2014. Retrieved 6 April 2017.
  71. ^ "GBU-31 JDAM (Joint Direct Attack Munition)". Hellenic Air Force (in Greek). Archived from the original on 3 July 2023.
  72. ^ Negi, Manjeet (29 March 2022). "India to arm Tejas fighter jets with American JDAM bombing kits". India Today. Archived from the original on 2 November 2023.
  73. ^ Mehta, Aaron (11 August 2016). "State Approves First NATO Joint Weapons Sale". Defense News. Archived from the original on 10 January 2024. Retrieved 25 May 2017.
  74. ^ "First International JDAM Sale: Boeing to Integrate Weapon on Israeli Aircraft". Boeing. 1 June 2000. Archived from the original on 28 March 2023. Retrieved 27 July 2007.
  75. ^ "Joint Direct Attack Munition (JDAM) History". Global Security. Archived from the original on 5 April 2023. Retrieved 27 July 2007.
  76. ^ 航空ファン 2008-12 P118
  77. ^ "Morocco - Weapons and Related Support for F-16 Aircraft" (PDF). Defense Security Cooperation Agency. 30 July 2008. Archived from the original (PDF) on 15 September 2012. Retrieved 13 May 2012.
  78. ^ "Dutch secretary of defense details plan for purchase of JDAM's". Ministerie van Defensie. 19 November 2003. Archived from the original on 30 September 2007. Retrieved 27 July 2007.
  79. ^ "Norway Signs Contract for Boeing JDAM". Boeing. 20 February 2006. Archived from the original on 31 March 2023. Retrieved 27 July 2007.
  80. ^ "Al Quwwat al Jawwiya al Sultanat Oman Royal Air Force of Oman - RAFO". F-16.net. Archived from the original on 1 September 2023. Retrieved 30 June 2022.
  81. ^ Gomez, Jim (22 March 2012). "Philippines using US smart bombs". inquirer.net. Archived from the original on 3 October 2023. Retrieved 21 January 2017.
  82. ^ "Polskie Siły Powietrzne Polish Air Force - PolAF". F-16.net. Archived from the original on 5 June 2023. Retrieved 30 June 2022.
  83. ^ Schiff, Ze'ev (20 April 2007). "Gates says Washington to sell smart bombs to Saudi Arabia". Haaretz. Archived from the original on 10 January 2024. Retrieved 27 July 2007.
  84. ^ "Taipei Economic and Cultural Representative Office in the United States (TECRO) – F-16C/D Block 70 Aircraft and Related Equipment and Support". Defense Security Cooperation Agency. 20 August 2019. Archived from the original on 20 September 2023.
  85. ^ Liebermann, Oren; Starr, Barbara; Bertrand, Natasha; Britzky, Haley (20 December 2022). "US to send precision bomb kits and Patriot missiles in next Ukraine aid package, officials say". CNN. Archived from the original on 13 December 2023.
  86. ^ Capaccio, Anthony (21 February 2023). "US Is Giving Ukraine a Long-Range GPS-Guided Bomb That Can Hit Targets Miles Away". Bloomberg.com. Archived from the original on 26 February 2023. Retrieved 22 February 2023.
  87. ^ Cooper, Tom (2018). Hot Skies Over Yemen, Volume 2: Aerial Warfare Over Southern Arabian Peninsula, 1994-2017. Warwick, UK: Helion & Company Publishing. p. III. ISBN 978-1-911628-18-7.
  88. ^ "Bulgaria – F-16 C/D Block 70 Aircraft". Defense Security Cooperation Agency. 4 April 2022. Archived from the original on 6 October 2023. Retrieved 27 June 2023.
  89. ^ "Argentina's First F-16 Breaks Cover". 20 April 2024.
  90. ^ Janes (1 June 2023), "GBU-31/32/38 Joint Direct Attack Munition (JDAM)", Janes Weapons: Air Launched, Coulsdon, Surrey: Jane's Group UK Limited., retrieved 26 August 2023
  91. ^ Janes (30 May 2023), "GBU-54/55/56 Laser Joint Direct Attack Munition (LJDAM)", Janes Weapons: Air Launched, Coulsdon, Surrey: Jane's Group UK Limited., retrieved 26 August 2023
  92. ^ Air Force Tests New Bomb That Could Replace Controversial Cluster Munitions. Military.com. 2 September 2020.
  93. ^ "Komutanlar Anadolu Kartali'nda (In Turkish)". Archived from the original on 2014-01-20. Retrieved 2010-10-05.
  94. ^ "Anadolu Kartali'na Yerli Bilim Katkisi (In Turkish)". Archived from the original on 2011-07-19. Retrieved 2010-10-05.
  95. ^ "Just How Dumb Are Russia's Winged Smart Bombs?". Popular Mechanics. 2023-04-24. Retrieved 2024-03-16.

Bibliography

[edit]
[edit]
Wikimedia Commons has media related to Joint Direct Attack Munition.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Joint_Direct_Attack_Munition&oldid=1255463510"