AGM-45 Shrike
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AGM-45 Shrike is an American
anti-radiation missile An anti-radiation missile (ARM) is a missile designed to detect and home in on an enemy radio emission source. Typically, these are designed for use against an enemy radar, although jammers and even radios used for communications can also be t ...
designed to home in on hostile anti-aircraft
radar Radar is a detection system that uses radio waves to determine the distance (''ranging''), angle, and radial velocity of objects relative to the site. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, w ...
. The Shrike was developed by the Naval Weapons Center at China Lake in 1963 by mating a seeker head to the rocket body of an
AIM-7 Sparrow The AIM-7 Sparrow (Air Intercept Missile) is an American, medium-range semi-active radar homing air-to-air missile operated by the United States Air Force, United States Navy, and United States Marine Corps, as well as other various air forces ...
. It was phased out by U.S. in 1992 and at an unknown time by the
Israeli Air Force The Israeli Air Force (IAF; he, זְרוֹעַ הָאֲוִיר וְהֶחָלָל, Zroa HaAvir VeHahalal, tl, "Air and Space Arm", commonly known as , ''Kheil HaAvir'', "Air Corps") operates as the aerial warfare branch of the Israel Defense ...
(the only other major user), and has been superseded by the
AGM-88 HARM The AGM-88 HARM (High-speed Anti-Radiation Missile) is a tactical, air-to-surface anti-radiation missile designed to home in on electronic transmissions coming from surface-to-air radar systems. It was originally developed by Texas Instruments as ...
missile. The
Israel Defense Forces The Israel Defense Forces (IDF; he, צְבָא הַהֲגָנָה לְיִשְׂרָאֵל , ), alternatively referred to by the Hebrew-language acronym (), is the national military of the Israel, State of Israel. It consists of three servic ...
developed a version of the Shrike that could be ground-launched with a booster rocket, and mounted it on an
M4 Sherman } The M4 Sherman, officially Medium Tank, M4, was the most widely used medium tank by the Military history of the United States during World War II, United States and Allies of World War II, Western Allies in World War II. The M4 Sherman prove ...
chassis as the Kilshon (Hebrew for ''Trident'').


History

The Shrike was first employed during the
Vietnam War The Vietnam War (also known by #Names, other names) was a conflict in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. It was the second of the Indochina Wars and was officially fought between North Vie ...
by the Navy in 1965 using A-4 aircraft. The Air Force adopted the weapon the following year using F-105F and G Thunderchief
Wild Weasel Wild Weasel is a code name given by the United States Air Force (USAF) to an aircraft of any type equipped with anti-radiation missiles and tasked with the suppression of enemy air defenses (SEAD): destroying the radar and surface-to-air mis ...
SEAD aircraft, and later the
F-4 Phantom II The McDonnell Douglas F-4 Phantom II is an American tandem two-seat, twin-engine, all-weather, long-range supersonic jet interceptor and fighter-bomber originally developed by McDonnell Aircraft for the United States Navy.Swanborough and Bow ...
in the same role. The range was nominally shorter than the
SA-2 Guideline The S-75 (Russian: С-75; NATO reporting name SA-2 Guideline) is a Soviet-designed, high-altitude air defence system, built around a surface-to-air missile with command guidance. Following its first deployment in 1957 it became one of the most w ...
missiles that the system was used against, although it was a great improvement over the early method of attacking SAM sites with rockets and bombs from
F-100F Super Sabre The North American F-100 Super Sabre is an American supersonic jet engine, jet fighter aircraft that served with the United States Air Force (USAF) from 1954 to 1971 and with the Air National Guard (ANG) until 1979. The first of the Century S ...
s. A Shrike was typically lofted about 30 degrees above the horizon at a
Fan Song The Fan Song is the NATO reporting name for SNR-75 series of trailer-mounted E band/ F band and G band fire control and tracking radars for use with the Soviet SA-2 Guideline surface-to-air missile system. Description The Fan Song radars ar ...
radar some 15 miles (25 km) away for a flight time of 50 seconds. Tactics changed incrementally over the campaigns of 1966 and 1967 until the advent of the
AGM-78 Standard ARM The AGM-78 Standard ARM was an anti-radiation missile developed by General Dynamics, United States. It was built on the airframe of the RIM-66 Standard surface-to-air missile, resulting in a very large weapon with considerable range, allowing it ...
. That new weapon allowed launches from significantly longer range with a much easier attack profile, as the Standard could be launched up to 180 degrees off target and still expect a hit and its speed allowed it to travel faster than the SA-2. Even after the Standard missile entered service, the Weasels still carried the Shrike because the Standard cost about $200,000, while a Shrike cost only $7,000. If USAF pilots expended a Standard they would have to fill out a lengthy form during debriefing. A somewhat standard load for the F-105G was a 650 US gal (2,500 L) centerline fuel tank, two Standards on inboard pylons and two Shrikes on the outboard pylons. The mix varied slightly for jamming pods and the occasional
AIM-9 Sidewinder The AIM-9 Sidewinder (where "AIM" stands for "Air Intercept Missile") is a short-range air-to-air missile which entered service with the US Navy in 1956 and subsequently was adopted by the US Air Force in 1964. Since then the Sidewinder has prov ...
but this was the baseline. The Shrike was involved in a
friendly fire In military terminology, friendly fire or fratricide is an attack by belligerent or neutral forces on friendly troops while attempting to attack enemy/hostile targets. Examples include misidentifying the target as hostile, cross-fire while eng ...
incident during an airstrike on
Haiphong Haiphong ( vi, Hải Phòng, ), or Hải Phòng, is a major industrial city and the third-largest in Vietnam. Hai Phong is also the center of technology, economy, culture, medicine, education, science and trade in the Red River delta. Haiphong wa ...
on 15 April 1972. Two missiles struck killing one crewman and injuring nine more. An American pilot apparently interpreted the PIRAZ cruiser's
AN/SPG-55 The AN/SPG-55 was an American tracking / illumination radar for Terrier and RIM-67 Standard missiles (SM-1ER/SM-2ER). It was used for target tracking and surface-to-air missile guidance Missile guidance refers to a variety of methods of guidi ...
radar as a North Vietnamese SAM site. ''Worden'' required ten days shipyard work at the
Subic Bay Naval Base Naval Base Subic Bay was a major ship-repair, supply, and rest and recreation facility of the Spanish Navy and subsequently the United States Navy located in Zambales, Philippines. The base was 262 square miles, about the size of Singapore. Th ...
to repair the damage. Although the Shrike missile did not enter regular service with the United Kingdom, it was covertly supplied by the United States to the
RAF The Royal Air Force (RAF) is the United Kingdom's air and space force. It was formed towards the end of the First World War on 1 April 1918, becoming the first independent air force in the world, by regrouping the Royal Flying Corps (RFC) and ...
for use in the
Falklands War The Falklands War ( es, link=no, Guerra de las Malvinas) was a ten-week undeclared war between Argentina and the United Kingdom in 1982 over two British dependent territories in the South Atlantic: the Falkland Islands and its territorial de ...
of 1982. RAF Shrikes were fitted to modified
Vulcan Vulcan may refer to: Mythology * Vulcan (mythology), the god of fire, volcanoes, metalworking, and the forge in Roman mythology Arts, entertainment and media Film and television * Vulcan (''Star Trek''), name of a fictional race and their home p ...
bombers in order to attack
Argentine Argentines (mistakenly translated Argentineans in the past; in Spanish (masculine) or (feminine)) are people identified with the country of Argentina. This connection may be residential, legal, historical or cultural. For most Argentines, s ...
radar installations during
Operation Black Buck Operations Black Buck 1 to Black Buck 7 were seven extremely long-range ground attack missions conducted during the 1982 Falklands War by Royal Air Force (RAF) Vulcan bombers of the RAF Waddington Wing, comprising aircraft from 44, 50 and ...
. The main target was a Westinghouse
AN/TPS-43 The AN/TPS-43 is a transportable air search 3D radar produced in the United States originally by Westinghouse Defense and Electronic Division, which was later purchased by Northrop-Grumman. It is used primarily for early warning and tactical con ...
long range 3D radar that the
Argentine Air Force "Argentine Wings" , mascot = , anniversaries = 10 August (anniversary) 1 May (Baptism of fire during the Falklands War) , equipment = 139 aircraft , equipment_label = , battles = * Operation Independence * Operation Soberanía * Falklan ...
deployed during April to guard Falklands' airspace. The Argentine operators were aware of the anti-radiation missiles and would simply turn it off during the Vulcan's approaches. This radar remained intact during the whole conflict. However, air defences remained operational during the attacks and the Shrikes hit two of the less valuable and rapidly replaced secondary fire control radars. After one Vulcan made an emergency landing at
Rio de Janeiro Rio de Janeiro ( , , ; literally 'River of January'), or simply Rio, is the capital of the state of the same name, Brazil's third-most populous state, and the second-most populous city in Brazil, after São Paulo. Listed by the GaWC as a b ...
, Brazilian authorities confiscated a Shrike which was not returned. About 95 AGM-45s were used in 1991 during Desert Storm against Iraqi air defense, mostly by F-4Gs.


Variants

There are many subvariants, each tuned to a different radar band.
Angle gating In Euclidean geometry, an angle is the figure formed by two rays, called the '' sides'' of the angle, sharing a common endpoint, called the ''vertex'' of the angle. Angles formed by two rays lie in the plane that contains the rays. Angles are ...
, used to prioritize targets, was included in every subvariant of the AGM-45A and B after the A-2 and B-2. It was also slow and the lack of punch in the warhead made it difficult for
bomb damage assessment Bomb damage assessment (BDA), also known as battle damage assessment, is the practice of assessing damage inflicted on a target from a stand-off weapon, most typically a bomb or air launched missile. It is part of the larger discipline of combat ...
, as well as inflicting any damage to the Fan Song Radar vans beyond a shattered radar dish, an easy item to replace or repair. The short range, combined with its lack of speed (compared to the SA-2 SAM) made for a difficult attack. The missile had to be well within the range of the SAM radar and if a SAM was fired the SAM would get to the aircraft first. Also the missile had few tolerances and had to be launched no more than + or − 3 degrees from the target. Many pilots in Vietnam did not like the Shrike because of its limitations and its success rate of around 25%. The differences between the AGM-45A and B are in the rocket motor used, and in the warheads capable of being fitted. The AGM-45A used the
Rocketdyne Rocketdyne was an American rocket engine design and production company headquartered in Canoga Park, California, Canoga Park, in the western San Fernando Valley of suburban Los Angeles, California, Los Angeles, in southern California. The Rocke ...
Mk 39 Mod 0 (or apparently in some cases the
Aerojet Aerojet was an American rocket and missile propulsion manufacturer based primarily in Rancho Cordova, California, with divisions in Redmond, Washington, Orange and Gainesville in Virginia, and Camden, Arkansas. Aerojet was owned by GenCorp. ...
Mk 53 Mod 1) motor, while the AGM-45B used Aerojet Mk 78 Mod 0 which greatly increased the range of the missile. As for warheads, the Mk 5 Mod 0, Mk 86 Mod 0, and WAU-8/B could all be fitted to the AGM-45A and were all blast-fragmentation in nature. The AGM-45B made use of the improved Mk 5 Mod 1 and Mk 86 Mod 1 warheads, as well as, the WAU-9/B, again all blast-fragmentation in type. The following table provides information on what radar bands were associated with certain guidance sections, and the subvariant designation. The -5 (targeted at
Fan Song The Fan Song is the NATO reporting name for SNR-75 series of trailer-mounted E band/ F band and G band fire control and tracking radars for use with the Soviet SA-2 Guideline surface-to-air missile system. Description The Fan Song radars ar ...
and
M-11 Shtorm The M-11 Shtorm (russian: М-11 «Шторм»; en, Storm) is a Russian naval surface-to-air missile system. Its GRAU designation is 4K60. Its NATO reporting name is SA-N-3 Goblet. The system was first installed on , an anti-submarine warfare c ...
("Head Lights") and -8 (targeted at
P-18 radar The P-18 or 1RL131 Terek (also referred to by the NATO reporting name "Spoon Rest D" in the west) is a 2D VHF radar developed and operated by the former Soviet Union. Development The P-18 early warning radar is a development of the earlier P-1 ...
"Spoon Rest" and
P-14 radar The P-14 (also referred to by the NATO reporting name "Tall King") is a 2D VHF radar that was developed and operated by the Soviet Union. Development The design of the P-14 2D early warning radar started in 1955 by decree of the CPSU Central Co ...
("Tall King") weapons never left development.


Operators

* * * *


See also

*
International Signal and Control International Signal and Control (ISC) was a United States, U.S. defense contractor based in Lancaster, Pennsylvania that was involved in the manufacture of electronic missile subassemblies, navigation components, fuses, power supplies for proximit ...


References


External links


The AGM-45 Shrike at Designation Systems.net
{{DEFAULTSORT:Agm-045 Anti-radiation missiles of the Cold War Anti-radiation missiles of the United States Texas Instruments Air-to-surface missiles of the United States Cold War air-to-surface missiles of the United States Military equipment introduced in the 1960s