| JP233 | |
|---|---|
 JP233 deployed from a Panavia Tornado | |
| Type | Submunition delivery system |
| Place of origin | United Kingdom |
| Service history | |
| Used by | |
| Wars | Operation Desert Storm |
| Production history | |
| Manufacturer | Hunting Engineering |
| Specifications | |
| Filling |
|
| Filling weight |
|
The JP233, originally known as the Low-Altitude Airfield Attack System(LAAAS), is a British submunition delivery system. It consists of large dispenser pods carrying several hundred submunitions designed to attack runways. [1]
Development of the system began in 1977 as a 50/50 cooperative programme between Hunting Engineering (now known as INSYS) of the UK and the US Air Force. The USAF intended to use the weapon with its General Dynamics FB-111 strike aircraft; however, in 1982 rising costs led them to pull out of the programme, and the British completed development on their own for potential use with the Panavia Tornado, SEPECAT Jaguar and Hawker Siddeley Harrier. [1]
The dispensers could be carried on wing pylons: short-finned containers for bomblets, or medium-length finned containers for mines. The F-111 was capable of carrying a pair of each type, but the Jaguar and Harrier would be able to carry only a single pair of either type. [1] The Tornado could be fitted with a pair of much larger pods on the shoulder pylons, each containing both types of munition. [1] Each JP233 as fitted to the Tornado was divided into a rear section with 30 SG-357 runway cratering submunitions, while the front section carried 215 HB-876 anti-personnel mines. Both types of submunitions were retarded by small parachutes.
The SG-357, which weighed 26 kilogrammes (57 pounds), was a two-stage munition. The longer, smaller-diameter forward section consists of a cylindrical high-explosive charge with a hole down the centre. The shorter, larger-diameter rear section held a shaped charge. At the front of the munition was a telescopic stand-off fusing system that created the correct detonation distance for the shaped charge. On impact, the extended fuse initiated the shaped charge, creating a metal jet which travelled through the centre of the forward charge element and then penetrated the concrete runway surface to create an underground chamber. The momentum of the cylindrical charge was enough for it to follow down through the hole created by the shaped charge before exploding some distance under the runway surface. This second explosion was intended to produce a crater with significant "heave" at the edge, making repairs much more difficult and time-consuming. [2]
The HB-876 mines would lie scattered on the surface, making rapid repair of the runway very hazardous. The outside of the munition was surrounded by a "coronet" of spring steel strips that were held flat against the sides of the mine. After landing on the surface, a small explosive device would fire and release the coronet springs such that the mine would become "erect" on the surface, with its self-forging fragment warhead pointing vertically upwards. The cylindrical case of the mine was made from dimpled steel and on detonation would spread small steel anti-personnel fragments, rather like a hand-grenade, in all radial directions. They would explode at preset intervals or if disturbed. Standing above the surface on the coronet of spring steel legs, they would tilt toward a bulldozer blade when pushed before detonating and firing the forged fragments toward the vehicle. [2]
Unlike most other submunition delivery systems that essentially function as free-falling bombs, the JP233 dispenser pods remained with their aircraft during operation and were jettisoned once empty.
Deployment required the aircraft to fly low, straight and level over an enemy airfield, and when over the runway the pods would dispense their payload. During the Gulf War, it was widely reported in the popular press that Tornados were shot down by anti-aircraft artillery fire and MANPADS during delivery of the JP233 munition. [3] In fact, none of the losses occurred during the attack phase of a JP233 mission.[ citation needed ] Only one aircraft was lost carrying the JP233, when Tornado ZA392 crashed into the ground approximately 16 km (10 mi) after delivering the weapon at low level; enemy fire was not reported and it was believed that this was an incident of controlled flight into terrain. [4]
What alarmed the crews of British and Saudi Arabian Tornados using JP233 was that the aircraft was brightly illuminated at night by the exploding munitions. [5] Attacks using JP233 were suspended six days into the Gulf War, as the Iraqi Air Force was effectively flying no missions.
With the increasing availability of standoff attack munitions capable of the same mission with little risk to the flight crew and aircraft, and the British entry into the Land Mines Treaty (which declares the HB-876 illegal), the JP233 has been withdrawn from service.
Examples of the JP233 are in various museums. [6] The Imperial War Museum also has films, viewable online, of tests of the JP233 Airfield Attack System and Airfield Denial System. [7] The Cold War Gallery of the National Museum of the US Air Force has a JP233 on display, fitted to a Panavia Tornado GR1 aircraft. [8]
A cluster munition is a form of air-dropped or ground-launched explosive weapon that releases or ejects smaller submunitions. Commonly, this is a cluster bomb that ejects explosive bomblets that are designed to kill personnel and destroy vehicles. Other cluster munitions are designed to destroy runways or electric power transmission lines.
The Panavia Tornado is a family of twin-engine, variable-sweep wing multi-role combat aircraft, jointly developed and manufactured by Italy, the United Kingdom and Germany. There are three primary Tornado variants: the Tornado IDS (interdictor/strike) fighter-bomber, the Tornado ECR SEAD aircraft and the Tornado ADV interceptor aircraft.
The GATOR mine system is a United States military system of air-dropped anti-tank and anti-personnel mines developed in the 1980s to be compatible with existing cluster dispensers. It is used with two dispenser systems—the Navy 230 kg (500 lb) CBU-78/B and the Air Force 450 kg (1,000 lb) CBU-89/B. Additionally the mines are used with the land- and helicopter-based Volcano mine system.
Suppression of Enemy Air Defenses (SEAD, pronounced ), also known in the United States as "Wild Weasel" and (initially) "Iron Hand" operations, are military actions to suppress enemy surface-based air defenses, including not only surface-to-air missiles (SAMs) and anti-aircraft artillery (AAA) but also interrelated systems such as early-warning radar and command, control and communication (C3) functions, while also marking other targets to be destroyed by an air strike. Suppression can be accomplished both by physically destroying the systems or by disrupting and deceiving them through electronic warfare. In modern warfare, SEAD missions can constitute as much as 30% of all sorties launched in the first week of combat and continue at a reduced rate through the rest of a campaign. One quarter of American combat sorties in recent conflicts have been SEAD missions. Despite generally being associated with aircraft, SEAD missions may be performed using any means, including through actions by ground forces.
Brimstone is a ground or air-launched ground attack missile developed by MBDA UK for the UK's Royal Air Force. It was originally intended for "fire-and-forget" use against mass formations of enemy armour, using a millimetre wave (mmW) active radar homing seeker to ensure accuracy even against moving targets. Experience in Afghanistan led to the addition of laser guidance in the dual-mode Brimstone missile, allowing a "spotter" to pick out specific and the highest priority targets, particularly useful to minimise collateral damage when friendly forces or civilians were in the area. The tandem shaped-charge warhead is much more effective against modern tanks than older similar weapons such as the AGM-65G Maverick missile. Three Brimstones are carried on a launcher that occupies a single weapon station, allowing a single aircraft to carry many missiles.
The Butterfly Bomb was a German 2-kilogram (4.4 lb) anti-personnel submunition used by the Luftwaffe during the Second World War. It was so named because the thin cylindrical metal outer shell which hinged open when the bomblet deployed gave it the superficial appearance of a large butterfly. The design was very distinctive and easy to recognise. SD 2 bomblets were not dropped individually, but were packed into containers holding between 6 and 108 submunitions e.g. the AB 23 SD 2 and AB 250-3 submunition dispensers. The SD 2 submunitions were released after the container was released from the aircraft and had burst open. Because SD 2s were always dropped in groups the discovery of one unexploded SD 2 was a reliable indication that others had been dropped nearby. This bomb type was one of the first cluster bombs ever used in combat and it proved to be a highly effective weapon. The bomb containers that carried the SD 2 bomblets and released them in the air were nicknamed the "Devil's Eggs" by Luftwaffe air and ground crew.
Anti-runway penetration bombs are explosive weapons involving bombs or bomblets designed to damage or destroy runways, or otherwise render them unusable for aircraft.
Named after a mythical medieval French sword, the Durandal is an anti-runway penetration bomb developed by the French company Matra, designed to destroy airport runways and exported to several countries. A simple crater in a runway could be just filled in, so the Durandal uses two explosions to displace the concrete slabs of a runway, thus making the runway much more difficult to repair.
The CBU-97 Sensor Fuzed Weapon is a United States Air Force 1,000-pound (450 kg)-class freefall Cluster Bomb Unit. It was developed and produced by Textron Defense Systems. A CBU-97 used in conjunction with the Wind Corrected Munitions Dispenser guidance tail kit is converted to a precision-guided weapon, and the combination is designated CBU-105.
Offensive counter-air(OCA) is a military term for the suppression of an enemy's military air power, primarily through ground attacks targeting enemy air bases: disabling or destroying parked aircraft, runways, fuel facilities, hangars, air traffic control facilities and other aviation infrastructure. Ground munitions like bombs are typically less expensive than more sophisticated air-to-air munitions, and a single ground munition can destroy or disable multiple aircraft in a very short time whereas aircraft already flying must typically be shot down one at a time. Enemy aircraft already flying also represent an imminent threat as they can usually fire back, and therefore destroying them before they can take off minimizes the risk to friendly aircraft.
BL755 is a cluster bomb developed by Hunting Aircraft that contains 147 parachute-retarded high explosive anti-tank (HEAT) submunitions. Its primary targets are armoured vehicles and tanks with secondary soft target capabilities. It entered service with the Royal Air Force (RAF) in 1973.
The AGM-124 Wasp is a missile developed by the United States. The Wasp grew out of the 1975 WAAM program initiated by the US Air Force in order to develop a series of new air-to-ground anti-armour weapons for close-support aircraft. The three-pronged program led to the CBU-92/B ERAM, the CBU-90/B ACM, and the Wasp anti-armour missile. The Wasp is regarded as the most advanced of these weapons.
The HB 876 mine was an air dropped area denial weapon. It was used as part of the JP233 runway denial system and the 'Hades' variant of the BL755 cluster bomb. As a result of the anti-personnel mine ban it was withdrawn from British Royal Air Force service, and the last stockpiles of the mine were destroyed on 19 October 1999.
An anti-personnel mine or anti-personnel landmine (APL) is a form of mine designed for use against humans, as opposed to an anti-tank mine, which target vehicles. APLs are classified into: blast mines and fragmentation mines; the latter may or may not be a bounding mine.
Bombkapsel 90 (BK90) is the Swedish Air Force's nomenclature for a gliding stand-off submunitions dispenser, or cluster bomb, with 72 submunitions. It is manufactured by DaimlerChrysler Aerospace in Germany by the name of DWS 24 - Dispenser Weapon System 24 barrels. The BK90 is also commonly known as DWS 39 Mjölner because it was intended for use with the Saab JAS 39 Gripen. In the future it could be also integrated on the Eurofighter Typhoon. Its design is very similar to that of the American AGM-154 Joint Standoff Weapon.
The Northrop Grumman Brilliant Anti-Tank (BAT) is a United States submunition round dispensed from a missile. It is capable of independently identifying and attacking armored vehicles. The BAT uses acoustic sensors to identify its intended targets, and an infrared homing (IR) terminal seeker to image and aim at the attack target.
The MW-1 is a German munitions dispenser similar to the British JP233. It is designed to be carried on the Tornado IDS, although it can be carried on the Lockheed F-104 Starfighter and the McDonnell Douglas F-4 Phantom II. The MW-1 started to be phased out after the German Government ratified the Convention on Cluster Munitions in 2009.
LS is an abbreviation for a family of Chinese built precision-guided munitions (PGM) named Thunder Stone Precision Guided Bomb developed by Luoyang Electro-Optics Technology Development Centre (EOTDC), a subsidiary of China Aerospace Science and Technology Corporation (CASC). Alternatively, the LS PGB is also referred to by its gliding capability, as Thunder Stone Gliding Guided Bomb, or LS GGB. The guidance design of LS PGB is also adopted for another family of Chinese PGM, the YZ series, such as YZ-102 series. These PGMs are referred to in China as precision guided bombs (PGB).
A precision-guided munition is a guided munition intended to precisely hit a specific target, to minimize collateral damage and increase lethality against intended targets. During the First Gulf War guided munitions accounted for only 9% of weapons fired, but accounted for 75% of all successful hits. Despite guided weapons generally being used on more difficult targets, they were still 35 times more likely to destroy their targets per weapon dropped.