The ALARM (Air-Launched Anti-Radar Missile) is designed to destroy ground-based air defence radars and surface-to-air missile radars, thereby providing support to attack aircraft while penetrating hostile air defences. It does this by homing on to radar transmissions and following them down to their source. It entered service in the early 1990s and proved very effective in the Gulf War. A Tornado GR1 can carry seven ALARMs. One unique feature is the optional capability to loiter over a target area while continuing to search for targets. It provides attack aircraft with an on-board suppression capability which will enable them to press home attacks against heavily defended targets with a high probability of success. When fired at an enemy radar source, the enemy can often detect the incoming missile and switch off their equipment, thereby depriving the missile of a target. ALARM will ascend to 40,000 feet from where it will deploy a parachute and descending slowly, using its seeker to search for any radiation source. Once the target has been acquired, the missile released the parachute and falls under gravity to the target. One other advantage with this system is that if the target shuts down before the missile has destroyed it, the missile remembers the location and will still hit the target. ALARM also has several direct modes, the an one allowing the missile to be fired directly at the SAM once the emitter has been located. Manufacturer: British Aerospace / Marconi Length: 13' 9" /4.24 m. D: 23 cm. Span: 73 cm. Weight: 200 kg.