AGM-154 Joint Standoff Weapon
Encyclopedia
The AGM-154 Joint Standoff Weapon (JSOW) is the product of a joint venture between the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 Navy
United States Navy
The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...

 and Air Force
United States Air Force
The United States Air Force is the aerial warfare service branch of the United States Armed Forces and one of the American uniformed services. Initially part of the United States Army, the USAF was formed as a separate branch of the military on September 18, 1947 under the National Security Act of...

 to deploy a standardized medium range precision guided weapon, especially for engagement of defended targets from outside the range of standard anti-aircraft defenses, thereby increasing aircraft survivability and minimizing friendly losses.

Development

The AGM-154 Joint Standoff Weapon or JSOW is currently in the fleet and in use by the US Navy. Foreign Military Sales (FMS) cases have been signed with Poland and Turkey for use with their F-16 fighters. Finland, Greece and Singapore are pursuing FMS cases at this time. The AGM-154 is intended to provide a low cost, highly lethal glide weapon with a standoff capability. The JSOW family of air-to-surface glide weapons are 1,000 lb (450 kg) class weapons that provide standoff capabilities from 15 nmi (27.8 km) low altitude launch and up to 60 nmi (111.1 km) high altitude launch. The JSOW can be used against a variety of land targets and operates from ranges outside enemy point defenses.

The JSOW is a launch and leave weapon that employs a tightly coupled Global Positioning System
Global Positioning System
The Global Positioning System is a space-based global navigation satellite system that provides location and time information in all weather, anywhere on or near the Earth, where there is an unobstructed line of sight to four or more GPS satellites...

 (GPS)/Inertial Navigation System
Inertial navigation system
An inertial navigation system is a navigation aid that uses a computer, motion sensors and rotation sensors to continuously calculate via dead reckoning the position, orientation, and velocity of a moving object without the need for external references...

 (INS), and is capable of day/night and adverse weather operations. The AGM-154A (JSOW A) uses GPS/INS for terminal guidance, while the AGM-154C (JSOW C) uses an infra-red seeker for terminal guidance.

The JSOW is just over 160 inches (4.1 m) in length and weighs about 1,000 pounds (483 kg). The JSOW was originally to be delivered in three variants, each of which uses a common air vehicle, or truck, while substituting various payloads. The AGM-154A (JSOW-A) entered service in 1999. The US Navy and Air Force developed the AGM-154B (JSOW B) up until Multi-Service Operational Test & Evaluation (MOT&E) but the Navy decided not to procure the weapon when the Air Force left the program. The AGM-154C (JSOW BROACH) entered service in February 2005.

During the 1990s JSOW was considered to be one of the most successful development programs in DOD history. The system was introduced to operational use a year ahead of schedule. Unlike most guided weapons and aircraft, the system never had a weight management problem, and was deployed at its target weight. The system introduced a new type of fuse, but was able to obtain authority from an independent safety review in record time. Many observers credited these accomplishments to the management style chosen by the DOD and Texas Instruments. After a competitive selection, the program staff was organized into integrated product teams with members from the government, the prime Texas Instruments
Texas Instruments
Texas Instruments Inc. , widely known as TI, is an American company based in Dallas, Texas, United States, which develops and commercializes semiconductor and computer technology...

 and subcontractors. In one case, the prime determined that the best-in-class supplier for a design service was the government, and gave part of its funding back. JSOW was recognized in 1996 with a Laurels Award from Aviation Week & Space Technology. It is notable for a guided weapon to receive this award, which is normally reserved for much larger systems. Because of this history, JSOW has been used as a case study for development programs, and for Integrated Product Teams, and is sometimes cited in academic research on program management.

AGM-154A (baseline JSOW)

The warhead of the AGM-154A consists of 145 BLU-97/B Combined Effects Bomb
BLU-97/B Combined Effects Bomb
The BLU-97/B Combined Effects Bomb is the submunition used in several cluster bomb type weapon systems. When the bomblets fall, they separate from the main bomb and independently free fall to the ground. They contain an inflatable bag on the top of them, which slows them down and spreads them out....

 (CEB) submunitions. These bomblets have a shaped charge for armor defeating capability, a fragmenting case for materiel destruction, and a zirconium ring for incendiary effects.

AGM-154B (anti-armor)

The warhead for the AGM-154B is the BLU-108/B from the Air Force's Sensor Fuzed Weapon (SFW) program. The JSOW B was to carry six BLU-108/B submunitions. Each submunition releases four projectiles (total of 24 per weapon) that use infrared sensors to detect targets. Upon detection, the projectile detonates, creating an explosively formed shaped charge capable of penetrating reinforced armor targets. This program concluded development but the Navy decided not to procure the weapon when the Air Force left the program.

AGM-154C (unitary variant)

The AGM-154C uses an Imaging Infrared (IIR) terminal seeker with autonomous guidance. The AGM-154C carries the BROACH warhead
BROACH warhead
The BROACH warhead is a multi-stage warhead developed by Team BROACH; BAE Systems Global Combat Systems Munitions, Thales Missile Electronics and QinetiQ. BROACH stands for Bomb Royal Ordnance Augmented CHarge....

. This two stage warhead is made up from a WDU-44 shaped augmenting warhead and a WDU-45 follow through bomb. The weapon is designed to attack hardened targets. It entered service with the US Navy in February 2005.

Production and upgrades

Full rate production started on December 29, 1999. In June 2000 Raytheon was contracted to develop an enhanced electronics package for the JSOW to prevent electronic spoofing
Spoofing attack
In the context of network security, a spoofing attack is a situation in which one person or program successfully masquerades as another by falsifying data and thereby gaining an illegitimate advantage.- Spoofing and TCP/IP :...

 of GPS signals. This ultimately resulted in the JSOW Block II weapon, incorporating multiple cost reduction initiatives in addition to the Selective Availability Anti-Spoofing Module (SAASM) capability. JSOW Block II was scheduled to begin production in March 2007.

The JSOW contains a modular control and deployment interface that allows future enhancement and additional configurations since it is likely that additional variants will emerge. The basic airframe is advertised as a "truck" and the JSOW-as-a-truck capability is widely advertised. Raytheon has placed a tremendous investment in the JSOW program and will certainly try to extend the Department of Defense
United States Department of Defense
The United States Department of Defense is the U.S...

 contracts for as long as possible with system upgrades and repackagings for new missions and targets.

JSOW Block III (JSOW-C1)

Raytheon was as of 2005 under contract to develop the JSOW Block III, which adds a Link-16 weapon data link and moving maritime target capability to the AGM-154C. It is scheduled to be produced in 2009. First three launches was conducted in August 2011 from F/A-18F.

AGM-154A-1 (JSOW-A1)

In addition, the AGM-154A-1 configuration is under development by Raytheon for FMS sales. This version replaces the submunition payload of the AGM-154A with a BLU-111 warhead to enhance blast-fragmentation effects without the unexploded ordnance (UXO) concerns with the BLU-97/B payload.

Powered JSOW

A Hamilton-Sundstrand TJ-150 turbojet engine for a powered JSOW is being tested. The powered variant name is JSOW-ER, where "ER" is for "extended range". JSOW-ER will increase range from 70 nautical miles out to 300 nautical miles.

Combat history

The AGM-154A was the first variant to be used in combat. The AGM-154A traditionally is used for SEAD
SEAD
Suppression of Enemy Air Defenses , also known as "Wild Weasel" and "Iron Hand" operations in the United States, are military actions to suppress enemy surface-based air defenses , primarily in the first hours of an attack.One fourth of American combat sorties in recent conflicts have been SEAD...

 missions. Initial deployment testing occurred aboard USS Nimitz and later aboard the USS Dwight D. Eisenhower
USS Dwight D. Eisenhower (CVN-69)
USS Dwight D. Eisenhower is an aircraft carrier currently in service with the United States Navy. Commissioned in 1977, the ship is the second of the ten Nimitz-class supercarriers currently in service, and is the first ship named after the thirty-fourth President of the United States, Dwight D....

. The first combat deployment of the JSOW occurred over southern Iraq
Iraq
Iraq ; officially the Republic of Iraq is a country in Western Asia spanning most of the northwestern end of the Zagros mountain range, the eastern part of the Syrian Desert and the northern part of the Arabian Desert....

 on January 25, 1999 when launched by a single F/A-18 from Carrier Air Wing 11 embarked aboard USS Carl Vinson
USS Carl Vinson (CVN-70)
The USS Carl Vinson is the third United States Navy Nimitz class supercarrier and is named after Carl Vinson, a Congressman from Georgia. Carl Vinson's callsign is "Gold Eagle". It played host to the first NCAA basketball game on an aircraft carrier on 11/11/11 between the University of North...

. The glide range of the JSOW allowed the weapon to strike a target located in the southern suburbs of Baghdad. This weapon enjoyed success since its early use. One adverse event: In February 2001, when a strike of F/A-18s from the USS Harry S. Truman
USS Harry S. Truman (CVN-75)
USS Harry S. Truman is the eighth Nimitz-class supercarrier of the United States Navy, named after the 33rd President of the United States, Harry S. Truman. HSTs callsign is Lone Warrior and is currently homeported at Naval Station Norfolk, Virginia.Harry S...

  battle group launched a massive attack on Iraqi air-defense sites, nearly every weapon missed the target. The cause of the miss was reported as a software problem. This problem was solved soon afterward. Since 1999, at least 400 of the JSOW weapons have been used in the following conflicts: Operation Southern Watch
Operation Southern Watch
Operation Southern Watch was an operation conducted by Joint Task Force Southwest Asia with the mission of monitoring and controlling airspace south of the 32nd Parallel in Iraq, following the 1991 Gulf War until the 2003 invasion of Iraq.-Summary:Operation Southern Watch began on 27 August 1992...

, NATO Operation Allied Force
Operation Allied Force
The NATO bombing of Yugoslavia was NATO's military operation against the Federal Republic of Yugoslavia during the Kosovo War. The strikes lasted from March 24, 1999 to June 10, 1999...

, Operation Enduring Freedom and Operation Iraqi Freedom.

Operators

(operational approximately in 2015)
The Dutch government announced on 7 Nov 2007 that it is starting an evaluation before equipping its F-16's with the JSOW.

Side notes
  1. USAF terminated production of JSOW in FY 2005, leaving the USN and USMC as the only U.S. services obtaining new JSOWs.
  2. According to a test report conducted by the United States Navy's Weapon System Explosives Safety Review Board
    Weapon System Safety
    The United States Navy formed the Weapon System Explosives Safety Review Board in 1968 as a result of the tragic fire on the USS Forrestal . The subsequent investigation recommended an independent review process be established...

     (WSESRB) established in the wake of the tragic 1967 USS Forrestal fire
    1967 USS Forrestal fire
    The 1967 USS Forrestal fire was a devastating fire and series of chain-reaction explosions on 29 July 1967 that killed 134 sailors and injured 161 on the aircraft carrier , after an unusual electrical anomaly discharged a Zuni rocket on the flight deck...

    , the cooking off
    Cooking off
    Cooking off refers to ammunition exploding prematurely due to heat in the surrounding environment. It can also refer to a technique used when throwing grenades to achieve a controlled, predictable explosion....

     time for a JSOW is approximately 2 minutes 11 seconds.

General characteristics

  • Primary Function: Air-to-surface
    Air-to-surface missile
    An air-to-surface missile is a missile designed to be launched from military aircraft and strike ground targets on land, at sea, or both...

     Standoff from Point Defense (SOPD) weapon, for use against a variety of targets.
  • Contractor: Raytheon
    Raytheon
    Raytheon Company is a major American defense contractor and industrial corporation with core manufacturing concentrations in weapons and military and commercial electronics. It was previously involved in corporate and special-mission aircraft until early 2007...

     Co.
  • Guidance: GPS/INS (Global Position/Inertial), Terminal IR Seeker (unique to 'C' model)
  • Length: 160 inches (4.1 m)
  • Diameter: box shaped 13 inches (330 mm) on a side / other source 40.6 x 51.9 cm
  • Weight: From 1,065 pounds (483 kg) to 1,095 pounds (497 kg)
  • Wingspan: 106 inches (2.69 m)
  • Aircraft Compatibility:
    • Navy: F/A-18C/D
      F/A-18 Hornet
      The McDonnell Douglas F/A-18 Hornet is a supersonic, all-weather carrier-capable multirole fighter jet, designed to dogfight and attack ground targets . Designed by McDonnell Douglas and Northrop, the F/A-18 was derived from the latter's YF-17 in the 1970s for use by the United States Navy and...

      , F/A-18E/F
    • Air Force: F-16 Block 40/50
      F-16 Fighting Falcon
      The General Dynamics F-16 Fighting Falcon is a multirole jet fighter aircraft originally developed by General Dynamics for the United States Air Force . Designed as an air superiority day fighter, it evolved into a successful all-weather multirole aircraft. Over 4,400 aircraft have been built since...

      , B-1B
      B-1 Lancer
      The Rockwell B-1 LancerThe name "Lancer" is only applied to the B-1B version, after the program was revived. is a four-engine variable-sweep wing strategic bomber used by the United States Air Force...

      , B-2A
      B-2 Spirit
      The Northrop Grumman B-2 Spirit is an American heavy bomber with low observable stealth technology designed to penetrate dense anti-aircraft defenses and deploy both conventional and nuclear weapons. The bomber has a crew of two and can drop up to eighty -class JDAM GPS-guided bombs, or sixteen ...

      , B-52H
      B-52 Stratofortress
      The Boeing B-52 Stratofortress is a long-range, subsonic, jet-powered strategic bomber operated by the United States Air Force since the 1950s. The B-52 was designed and built by Boeing, who have continued to provide maintainence and upgrades to the aircraft in service...

      , F-15E
      F-15 Eagle
      The McDonnell Douglas F-15 Eagle is a twin-engine, all-weather tactical fighter designed by McDonnell Douglas to gain and maintain air superiority in aerial combat. It is considered among the most successful modern fighters with over 100 aerial combat victories with no losses in dogfights...

      , F-35A
      F-35 Lightning II
      The Lockheed Martin F-35 Lightning II is a family of single-seat, single-engine, fifth generation multirole fighters under development to perform ground attack, reconnaissance, and air defense missions with stealth capability...

  • Range:
    • Low altitude launch - 12 nmi (22.2 km)
    • High altitude launch - 70 nmi (129.6 km)
  • Warhead(s):
    • BLU-97/B - Combined Effects Bomblets (JSOW A)
    • BLU-108
      BLU-108
      The BLU-108 is an air-delivered submunition, containing four further smart "Skeet" submunitions. The system is manufactured by Textron Defense Systems.- BLU-108/B specifications :* Length: 78.8 cm * Diameter: 13.3 cm...

       - Sensor fused weapon (JSOW B - now cancelled)
    • BROACH
      BROACH warhead
      The BROACH warhead is a multi-stage warhead developed by Team BROACH; BAE Systems Global Combat Systems Munitions, Thales Missile Electronics and QinetiQ. BROACH stands for Bomb Royal Ordnance Augmented CHarge....

      multi-stage warhead (JSOW C)
  • Unit Cost:
    • AUPP AGM-154A, $282,000. Total program cost: $3,327,000.
    • AGM-154B, $484,167. Total program cost: $2,033,500.
    • AGM-154C, $719,012. Total program cost: $5,608,000.
  • Date Deployed: January 1999

External links

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