ALARM missile

ALARM (Air Launched Anti-Radiation Missile) is a British anti-radiation missile designed primarily to destroy enemy radars for the purpose of Suppression of Enemy Air Defence (SEAD). It is used by the RAF and the Royal Saudi Air Force. [cite news |title=Saudis review F.3 air-defence role |work=Flight International|publisher=Reed Business Publishing |date=1991-12-25 |accessdate=2007-07-24]

History

The Ministry of Defence received bids for a new anti-radiation missile in late 1982; British Aerospace Dynamics offered ALARM while Texas Instruments teamed with Lucas Aerospace offered its HARM missile.cite news |first=Bridget |last=Bloom|title=Thatcher to resolve anti-radar missile row|work=Financial Times|date=1983-05-16|accessdate=2007-07-24] Defence Secretary Michael Heseltine announced the selection of ALARM on 29 July 1983. The initial order was 750 missiles for the RAF. [cite news |title=British Select Alarm Missile Over HARM |work=Aviation Week & Space Technology |publisher=McGraw-Hill |date=1983-07-08 |accessdate=2007-07-24 ] The selection process was controversial; the battle between the contractors was bitter, the Ministry of Defence favoured ALARM to retain UK industrial capabilities while the Treasury favoured the cheaper and proven HARM. [cite news |first=Bridget |last=Bloom |title=Missile manufacturers bid for UK navy deal |work=Financial Times |date=1983-07-30|accessdate=2007-07-24 ]

In early 1986 BAe recognised that Royal Ordnance was having difficulties delivering the missile's motor, named Nuthatch, and began to consider alternatives. Royal Ordnance's solution to the required burn-loiter-burn characteristic of the engine was complex. [cite news |first=David |last=Buchan |title=BAe Cancels Missile Deal With Royal Ordnance |work=Financial Times |date= 1987-07-20|accessdate=2007-07-24 ] In July 1987 BAe, by then the owner of Royal Ordnance, replaced the Nuthatch motor with a lower risk motor designed by Bayern-Chemie. [cite news |title=British Aerospace Delays Missile Program |url= |work=Aviation Week & Space Technology |publisher=McGraw-Hill |date=1987-09-21 |accessdate=2007-07-24 ] BAe's GB£200 million contract for the missile was renegotiated with the price increased to GB£400 million and delivery pushed back from 1988 to 1990. [cite news |first=Michael |last=Evans |title=Missile bill for RAF up £150 million |work=The Times |publisher=Times Newspapers |date=1988-03-18 |accessdate=2007-07-24 ]

Features

ALARM is a fire-and-forget system, with an added loiter capability.In loiter mode, ALARM will, when launched, climb to an altitude of 13 km. If the target radar shuts down, the missile will deploy a parachute and descend slowly until the radar lights up. The missile will then fire a secondary motor to attack the target.

Combat Performance

ALARM has been used in the following conflicts:
*1991 Gulf War, during which 121 missiles were used. [cite news |title=RAF Tornados begin Yugoslavia operations from Corsican base |work=Aerospace Daily & Defense Report |publisher=The McGraw-Hill Companies |date=1999-06-03 |accessdate=2007-07-24 ]
*Kosovo War
*2003 Invasion of Iraq

During the 1999 'Allied Force' offensive in Kosovo, Luftwaffe Tornado ECR, USAF Wild Weasel F-16s and US Navy EA-6B Prowlers attempted to destroy a Serbian air defence radar with HARMs. After almost 100 attempts, the RAF was called in and the radar was destroyed with a single ALARM, thanks to its loiter capability. [Citation
last1 = Gibson | first1 = Chris
last2 = Buttler | first2 = Tony
title = British Secret Projects - Hypersonics, Ramjets and Missiles
publisher = Midland Publishing
year = 2007
isbn = 978-1-85780-258-0
]

Operators

; SAU
* Royal Saudi Air Force; UK
* Royal Air Force

pecifications

*Primary Function: Suppression of Enemy Air Defence
*Contractor: MBDA
*Power Plant: Bayern Chemie two stage solid propellant rocket motors
*Length: 4.24 m
*Diameter: 23 cm
*Wing Span: 73 cm
*Launch Weight: 268 kg
*Speed: 2455 km/h (supersonic)
*Warhead: Proximity fused high-explosive
*Range: 93km
*Fuse: Laser Proximity
*Guidance system: Pre-programmed/passive radar seeker
*Unit Cost: undisclosed
*Date Deployed: 1990
*User: UK (RAF)
**Tornado GR.4, although only IX Squadron and 31 Squadron specialise in the role.
**Tornado F3 - fitted in time for 2003 Gulf War - receiving designation Tornado EF3
**Weapon has been "fit checked" on other RAF aircraft, such as the Jaguar. Due to its relatively large weight it is not suited to the entire RAF fleet.
**Also expected to be usable on the Eurofighter Typhoon

References

External links

* [http://www.raf.mod.uk/equipment/alarm.cfm RAF: ALARM description]
* [http://www.bayernchemie-protac.com/rocket_motors_alarm.htm Bayern-Chemie] - Development and production of a rocket motor used by ALARM. More than 1,200 produced
* [http://www.eurofighter-typhoon.co.uk/common/AG/alarm.html Matra-BAe Dynamics ALARM] at Eurofighter Typhoon—a brief history of ALARM
* [http://www.armedforces.co.uk/raf/listings/l0039.html RAF Weapons] at armedforces.co.uk


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • ALARM — англ. Air Launched Anti Radiation Missile …   Википедия

  • Alarm (disambiguation) — Alarm may refer to: *Alarm magazine, a music art magazine based in Chicago, IL. *Alarm, a device that gives an audible or visual warning of a problem or condition *ALARM, (Air Launched Anti Radiation Missile) a British anti radiation missile… …   Wikipedia

  • ALARM — Grunddaten Funktion Anti Radar Rakete Hersteller MBDA Entwicklung 1982 …   Deutsch Wikipedia

  • Missile anti-radar — Missile HARM sur un F/A 18C de l US Navy Missile ALARM sous l aile d un Tornado …   Wikipédia en Français

  • ALARM (Rakete) — ALARM Allgemeine Angaben Typ: Anti Radar Rakete H …   Deutsch Wikipedia

  • ALARM — (Air Launched Anti Radiation Missile) a·larm || É™ lɑːm missile with an infrared transmitter that zeroes in on targets that give off heat …   English contemporary dictionary

  • Missile Defense Alarm System — The Missile Defense Alarm System was an American system of 12 early warning satellites that provided limited notice of Soviet intercontinental ballistic missile launches between 1960 and 1966. Originally intended to serve as a complete early… …   Wikipedia

  • Missile Approach Warning — A Missile Approach Warning system is part of the avionics package on some military aircraft. A sensor detects attacking missiles. Its automatic warning cues the pilot to make a defensive maneuver and deploy the available countermeasures to… …   Wikipedia

  • Missile Defense Alarm System — MIDAS (satellite) MIDAS (acronyme de Missile Defense Alarm System) est une série de 12 satellites militaires américains mis sur orbite entre 1960 et 1966 pour détecter les lancements de missiles balistiques soviétiques. Les MIDAS constituent le… …   Wikipédia en Français

  • missile — /mis euhl/ or, esp. Brit., / uyl/, n. 1. an object or weapon for throwing, hurling, or shooting, as a stone, bullet, or arrow. 2. See guided missile. 3. See ballistic missile. adj. 4. capable of being thrown, hurled, or shot, as from the hand or… …   Universalium


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.