Munitions

GBU-54 Laser Joint Direct Attack Munition

Also known as
  • Laser JDAM
  • LJDAM
  • GBU-54/B
  • GBU-54 LJDAM
  • GBU-54 Laser JDAM

The GBU-54 Laser Joint Direct Attack Munition is Boeing's 500-pound JDAM variant with a DSU-38 laser seeker, combining GPS/INS navigation with terminal laser guidance for moving or relocatable targets. U.S. military and specialist reporting document combat use by F-16s in Iraq and Afghanistan, AV-8B Harriers during Operation Odyssey Lightning in Libya, and Israeli F-16s over Gaza.

Role in Conflicts

Side
United States and Libyan Government of National Accord

DVIDS documented U.S. Marines loading a GBU-54 onto an AV-8B Harrier aboard USS Wasp on 1 August 2016 for Operation Odyssey Lightning strikes against Daesh targets in Sirte, Libya.

Combat Use Milestones

Publicly documented GBU-54 combat-use reporting clusters around U.S. and allied aircraft using the weapon where laser terminal guidance helped with moving, relocatable, or closely controlled targets.

DateConflictDocumented aircraft and use
2008-08-122003 Iraq WarU.S. Air Forces Central reported F-16 first combat employment against a moving enemy vehicle.
2010-10-012001 War in AfghanistanAir Force reporting documented an Afghan-theater drop from Bagram, while DVIDS later reported Marine F/A-18 Hornet combat employment in Afghanistan.
2016-08-012016 U.S. Campaign Against ISIS in LibyaDVIDS documented Marines loading a GBU-54 onto an AV-8B aboard USS Wasp for Operation Odyssey Lightning strikes around Sirte.
2023-10-122023 Israel-Hamas WarThe Aviationist reported GBU-54 Laser JDAM configurations on Israeli F-16 strike sorties over Gaza.
Profile / Specs

Profile

Origin
United States
Built by
Boeing
Type
500-pound dual-mode guided bomb
Service note
2000s-present
Designer
Boeing
Designed
2000s
Unit cost
Approximately $24,164 per bomb
Produced
2000s-present
Number built
Not publicly disclosed

Specifications

Warhead
500 lb bomb body such as Mk 82 or BLU-111
Weight
575 lb (USAF) or 591 lb (USN)
Length
93.7 in (2.38 m)
Diameter
17 in (43 cm)
Guidance
GPS/INS with DSU-38 laser terminal seeker
Target set
Moving or relocatable targets
Range
Glides up to 15 miles (24 km)
Variants

GBU-54 is the 500-pound Laser JDAM member, pairing the GBU-38/Mk 82 weight class with the Laser JDAM seeker concept while remaining in the broader JDAM family.

VariantConfigurationDesignation notes
GBU-38 Joint Direct Attack Munition, 500-pound GPS/INS-guided bomb, MunitionsGBU-38 Joint Direct Attack Munition500-pound GPS/INS JDAM baseline

GBU-54 adds Laser JDAM terminal guidance to the 500-pound GBU-38 JDAM class rather than replacing the GPS/INS tailkit concept.

Sources: Boeing Laser JDAM product card, Designation Systems JDAM page

GBU-55 Laser Joint Direct Attack Munition, Reserved 1,000-pound laser/GPS-guided bomb designation, MunitionsGBU-55 Laser Joint Direct Attack Munition1,000-pound Laser JDAM family member

Designation references place GBU-55 as the adjacent 1,000-pound Laser JDAM designation between the 500-pound GBU-54 and 2,000-pound GBU-56 classes.

Sources: Designation Systems JDAM page

GBU-56 Mk-84 Laser JDAM, 2,000-pound laser-guided bomb, MunitionsGBU-56 Mk-84 Laser JDAM2,000-pound Laser JDAM family member

GBU-56 applies the Laser JDAM guidance concept to the 2,000-pound Mk 84 class, making it the heavier same-family counterpart to GBU-54.

Sources: Boeing Laser JDAM product card, Designation Systems JDAM page

Carrier Aircraft

The B-1B Lancer is documented as carrying GBU-54 Laser JDAMs. The AV-8B Harrier II is documented as carrying and loading the GBU-54 for operational strikes. Public reporting and test coverage show the GBU-54 on multiple fighter types, including wartime F-16 and F/A-18 employment and an F-35C test release.

CarrierCarrier typeCarriage evidence
F-15 family fighter aircraft, Fighter aircraft family, Aircraft & UAVsF-15 family fighter aircraftMultirole fighter aircraft

Boeing's Advanced F-15 weapons inventory lists GBU-54 Mk-82 Laser JDAM among the aircraft's external carriage options.

Sources: Advanced F-15 Weapons Inventory

B-1B Lancer, Long-range, multi-role supersonic bomber, Aircraft & UAVsB-1B LancerLong-range bomber

The Air Force B-1B fact sheet lists GBU-54 Laser Joint Direct Attack Munitions in the bomber's carried precision-attack load.

Sources: B-1B Lancer GBU-54 load

F-16 Fighting Falcon, Multirole fighter aircraft, Aircraft & UAVsF-16 Fighting FalconFighter aircraft

The Air Force said the first combat employment of the GBU-54 happened on F-16s in Iraq in 2008, and The Aviationist later reported GBU-54 Laser JDAM configurations on Israeli F-16s over Gaza.

Sources: Air Force employs first combat use of laser joint direct attack munition in Iraq, The Aviationist IAF aircraft in the fight against Hamas

F/A-18 Hornet (Tactical), Carrier-capable multirole strike fighter, Aircraft & UAVsF/A-18 Hornet (Tactical)Carrier-capable multirole strike fighter

DVIDS reported that Marine Fighter Attack Squadron 122 became the first Marine F/A-18 Hornet squadron to employ the GBU-54 Laser JDAM in combat while deployed in Afghanistan.

Sources: Werewolves serve as guardians to ground forces in Afghanistan

F-35 Lightning II, Fifth-generation stealth multirole fighter, Aircraft & UAVsF-35 Lightning IIFighter aircraft

AFOTEC reported the first dual, external release of a GBU-54 Laser Joint Direct Attack Munition from an F-35C in 2025.

Sources: UOTT Conducts First Dual, External GBU-54 Release

A-10 Thunderbolt II, Close air support attack aircraft, Aircraft & UAVsA-10 Thunderbolt IIClose air support attack aircraft

Air Force Materiel Command reported an A-10C made the first ever drop of a GBU-54 Laser Joint Direct Attack Munition from an A-10.

Sources: A-10 successfully drops laser-guided bomb

AV-8B Harrier II, V/STOL light attack and close-air-support aircraft, Aircraft & UAVsAV-8B Harrier IIV/STOL attack aircraft

The AV-8B PDF fact file lists GBU-54 among the Harrier's air-to-ground weapons, and DVIDS documented Marines loading a GBU-54 onto an AV-8B aboard USS Wasp during Operation Odyssey Lightning.

Sources: NHHC AV-8B PDF Fact File, DVIDS Marines load munitions for Operation Odyssey Lightning

Design Notes

The GBU-54 sits between the coordinate-only JDAM and a traditional laser-guided bomb. Boeing and Navy descriptions show it as a 500-pound dual-mode weapon that adds laser terminal guidance to the JDAM tailkit.

TopicReader note
Base weaponBuilt around the JDAM conversion kit on a 500-pound bomb body.
Terminal guidanceThe DSU-38 laser seeker gives it a moving-target option when coordinates alone are not enough.
IOC and costThe Navy fact file says LJDAM reached IOC in FY2012 and lists a unit cost of about $24,164.
Family linkJoint Direct Attack Munition (JDAM) guidance kit, GPS/INS guidance tail kit for free-fall bombs, MunitionsJDAM-guided bomb
Timeline

GBU-54 Laser Joint Direct Attack Munition Key Events

  1. First combat use in Iraq

    The Air Force said the GBU-54 was first employed in combat by F-16s against a moving enemy vehicle in Iraq on 12 August 2008.

    Sources: Air Force employs first combat use of laser joint direct attack munition in Iraq

  2. First Afghan-area combat drop

    Airmen from the 510th Fighter Squadron used the GBU-54 at Bagram Airfield in the Afghan area of operations; DVIDS later reported Marine F/A-18 combat employment of the weapon in Afghanistan.

    Sources: Airmen make impact with first GBU-54 combat drop in Afghanistan, Werewolves serve as guardians to ground forces in Afghanistan

  3. LJDAM reaches IOC

    The Navy fact file says LJDAM reached initial operational capability in fiscal year 2012.

    Sources: Joint Direct Attack Munition (JDAM) - Navy

  4. AV-8B loadout for Operation Odyssey Lightning

    DVIDS documented Marines loading a GBU-54 onto an AV-8B Harrier aboard USS Wasp as U.S. forces conducted precision strikes against Daesh targets in Sirte, Libya.

    Sources: DVIDS Marines load munitions for Operation Odyssey Lightning

  5. Israeli F-16 loadouts reported with GBU-54s

    The Aviationist reported GBU-54 Laser JDAM configurations on Israeli Air Force F-16 strike sorties over Gaza.

    Sources: The Aviationist IAF aircraft in the fight against Hamas

  6. F-35 dual external release

    AFOTEC reported the first dual, external GBU-54 release from an F-35C.

    Sources: UOTT Conducts First Dual, External GBU-54 Release

Media
Related Weapon Systems
GBU-55 Laser Joint Direct Attack Munition, Reserved 1,000-pound laser/GPS-guided bomb designation, MunitionsMunitionsGBU-55 Laser Joint Direct Attack MunitionReserved 1,000-pound laser/GPS-guided bomb designationThe GBU-55 Laser Joint Direct Attack Munition is the reserved 1,000-pound Laser JDAM designation associated with the GBU-32 JDAM and Mk 83 or BLU-110 bomb-body class. Public sources describe the Laser JDAM concept as a Boeing GPS/INS JDAM fitted with a laser terminal seeker for moving or relocatable targets, while designation references treat GBU-55 as the 1,000-pound member between the 500-pound GBU-54 and 2,000-pound GBU-56 Laser JDAMs.
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Sources