The AN/ALR-67

radar warning receiver Radar warning receiver (RWR) systems detect the radio emissions of radar systems. Their primary purpose is to issue a warning when a radar signal that might be a threat is detected, like a fighter aircraft's fire control radar. The warning can ...

is designed to warn an aircraft's crew of potentially hostile radar activity. It is an airborne threat warning and countermeasures control system built to be successor to the United States Navy's AN/ALR-45.

Northrop Grumman Corporation Northrop Grumman Corporation is an American multinational aerospace and defense company. With 97,000 employees and an annual revenue in excess of $40 billion, it is one of the world's largest weapons manufacturers and military technology provi ...

's Electronic Systems sector (

Rolling Meadows, Illinois Rolling Meadows is a city in Cook County, Illinois, United States. It is a suburb of Chicago. Per the 2020 census, the population was 24,200. History In 1836, Orrin Ford became the first landowner in the area that is now Rolling Meadows, stak ...

) was the main contractor for the AN/ALR-67(V) and (V)2. Raytheon Electronic Warfare Systems (Goleta, California) was the main contractor for the AN/ALR-67(V)3. In accordance with the

Joint Electronics Type Designation System The Joint Electronics Type Designation System (JETDS), which was previously known as the Joint Army-Navy Nomenclature System (AN System. JAN) and the Joint Communications-Electronics Nomenclature System, is a method developed by the U.S. War Depa ...

(JETDS), the "''AN/ALR-67''" designation represents the 67th design of an Army-Navy airborne electronic device for

countermeasures A countermeasure is a measure or action taken to counter or offset another one. As a general concept, it implies precision and is any technological or tactical solution or system designed to prevent an undesirable outcome in the process. The fi ...

receiver equipment. The JETDS system also now is used to name all

Department of Defense The United States Department of Defense (DoD, USDOD, or DOD) is an executive department of the U.S. federal government charged with coordinating and supervising the six U.S. armed services: the Army, Navy, Marines, Air Force, Space Force, ...

electronic systems.

AN/ALR-67(V) and AN/ALR-67(V)2

The AN/ALR-67 countermeasures warning and control system is the standard threat warning system for tactical aircraft and was specifically designed for the A-6E/SWIP,

AV-8B Harrier II The McDonnell Douglas (now Boeing) AV-8B Harrier II is a single-engine ground-attack aircraft that constitutes the second generation of the Harrier family, capable of vertical or short takeoff and landing (V/STOL). The aircraft is primaril ...

F-14B Tomcat The Grumman F-14 Tomcat is an American carrier-capable supersonic aircraft, supersonic, twinjet, twin-engine, Tandem#Aviation, tandem two-seat, twin-tail, all-weather-capable variable-sweep wing fighter aircraft. The Tomcat was developed for t ...

F-14D Tomcat The Grumman F-14 Tomcat is an American carrier-capable supersonic aircraft, supersonic, twinjet, twin-engine, Tandem#Aviation, tandem two-seat, twin-tail, all-weather-capable variable-sweep wing fighter aircraft. The Tomcat was developed for t ...

and

F/A-18 Hornet The McDonnell Douglas F/A-18 Hornet is an all-weather supersonic, twinjet, twin-engine, carrier-based aircraft, carrier-capable, Multirole combat aircraft, multirole combat aircraft, designed as both a Fighter aircraft, fighter and attack airc ...

. The system detects, identifies and displays radars and radar-guided weapon systems in the C to J frequency bands (about 0.5 to 20 GHz). The system also coordinates its operation with onboard fire-control radars,

data link A data link is a means of telecommunications link, connecting one location to another for the purpose of transmitting and receiving digital information (data communication). It can also refer to a set of electronics assemblies, consisting of a t ...

s, jammers,

missile A missile is an airborne ranged weapon capable of self-propelled flight aided usually by a propellant, jet engine or rocket motor. Historically, 'missile' referred to any projectile that is thrown, shot or propelled towards a target; this ...

detection systems and

anti-radiation missiles 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 ta ...

. The AN/ALR-67(V)2 comprises the following units: * Four small spiral high-band antennas to provide 360° azimuth RF coverage * Four wideband, high-band quadrant receivers * A low-band array plus receiver to provide 360° azimuth low-band coverage * A narrowband

superheterodyne receiver A superheterodyne receiver, often shortened to superhet, is a type of radio receiver that uses frequency mixing to convert a received signal to a fixed intermediate frequency (IF) which can be more conveniently processed than the original car ...

for signal analysis functions * Twin

CPU A central processing unit (CPU), also called a central processor, main processor, or just processor, is the primary processor in a given computer. Its electronic circuitry executes instructions of a computer program, such as arithmetic, log ...

* An azimuth display unit (ADU) * A control unit The AN/ALR-67(V)2 in turn has been given a significant enhancement in capability, through Engineering Change Procedure ECP-510 to the AN/ALR-67E(V)2 standard. The AN/ALR-67E(V)2 provides additional enhancements including a 10-fold improvement in detection ranges when in the presence of a wingman's radar signals; it also incorporates

inertial navigation system An inertial navigation system (INS; also inertial guidance system, inertial instrument) is a navigation device that uses motion sensors (accelerometers), rotation sensors (gyroscopes) and a computer to continuously calculate by dead reckoning th ...

(INS) stabilization for accurate display in high ''g'' maneuvers and during high roll maneuvers. Over 1,600 AN/ALR-67(V) and AN/ALR-67(V)2 systems have been sold. The AN/ALR-67(V) has been supplied to the

U.S. Navy The United States Navy (USN) is the maritime service branch of the United States Department of Defense. It is the world's most powerful navy with the largest displacement, at 4.5 million tons in 2021. It has the world's largest aircraft ...

and

U.S. Marine Corps The United States Marine Corps (USMC), also referred to as the United States Marines or simply the Marines, is the maritime land force service branch of the United States Department of Defense. It is responsible for conducting expeditionary ...

and the air forces of

Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...

Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...

Finland Finland, officially the Republic of Finland, is a Nordic country in Northern Europe. It borders Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of Bothnia to the west and the Gulf of Finland to the south, ...

Kuwait Kuwait, officially the State of Kuwait, is a country in West Asia and the geopolitical region known as the Middle East. It is situated in the northern edge of the Arabian Peninsula at the head of the Persian Gulf, bordering Iraq to Iraq–Kuwait ...

Malaysia Malaysia is a country in Southeast Asia. Featuring the Tanjung Piai, southernmost point of continental Eurasia, it is a federation, federal constitutional monarchy consisting of States and federal territories of Malaysia, 13 states and thre ...

Spain Spain, or the Kingdom of Spain, is a country in Southern Europe, Southern and Western Europe with territories in North Africa. Featuring the Punta de Tarifa, southernmost point of continental Europe, it is the largest country in Southern Eur ...

and

Switzerland Switzerland, officially the Swiss Confederation, is a landlocked country located in west-central Europe. It is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland ...

. Specifically, the system designation ALR-67B(V)2 is used in connection with systems fitted to the

Spanish Air Force The Spanish Air and Space Force () is the aerial and space warfare branch of the Spanish Armed Forces. History Early stages Hot air balloons have been used with military purposes in Spain as far back as 1896. In 1905, with the help of Al ...

EF-18 Hornet and

Royal Canadian Air Force The Royal Canadian Air Force (RCAF; ) is the air and space force of Canada. Its role is to "provide the Canadian Forces with relevant, responsive and effective airpower". The RCAF is one of three environmental commands within the unified Can ...

CF-18 Hornet The McDonnell Douglas CF-18 Hornet (official military designation CF-188) is a Royal Canadian Air Force (RCAF) variant of the American McDonnell Douglas F/A-18 Hornet fighter aircraft. In 1980, the F/A-18 was selected as the winner of the New ...

aircraft.

Raytheon AN/ALR-67(V)3

The AN/ALR-67(V)3 is commonly referred to as the Advanced Special Receiver (ASR) set. The receiver electronics unit has been upgraded to a fully channelized digital architecture with dual 32-bit processors, yet with an overall reduction in system size and weight. The Azimuth Display Indicator (ADI) is a 3 in (76.2 mm) diameter

CRT CRT or Crt most commonly refers to: * Cathode-ray tube, a display * Critical race theory, an academic framework of analysis CRT may also refer to: Law * Charitable remainder trust, United States * Civil Resolution Tribunal, Canada * Columbia ...

LCD A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers to display information. Liquid crystals do not em ...

cockpit display, carried over from the AN/ALR-67(V)2, used to show intercepted threats. The AN/ALR-67(V)3 also forms part of the

electronic countermeasures An electronic countermeasure (ECM) is an electrical or electronic device designed to countermeasure, trick or deceive radar, sonar, or other detection systems, like infrared (IR) or lasers. It may be used both offensively and defensively to deny ...

programme, including an interface to the

ALE-50 towed decoy system The AN/ALE-50 towed decoy system is an electronic countermeasure tool designed by Raytheon to protect multiple US military aircraft from air-to-air and surface-to-air Missile guidance#Active homing, radar-guided missiles. The AN/ALE-50 towed deco ...

. In August 1999,

Raytheon Raytheon is a business unit of RTX Corporation and is a major U.S. defense contractor and industrial corporation with manufacturing concentrations in weapons and military and commercial electronics. Founded in 1922, it merged in 2020 with Unite ...

was awarded an initial contract for full-rate production of the AN/ALR-67(V)3 for the U.S. Navy

F/A-18E/F Super Hornet The Boeing F/A-18E and F/A-18F Super Hornet are a series of American supersonic twinjet, twin-engine, Carrier-based aircraft, carrier-capable, Multirole combat aircraft, multirole fighter aircraft derived from the McDonnell Douglas F/A-18 Ho ...

, totalling 34 complete installations, together with 40 spare quadrant receivers and five countermeasures receivers. These were delivered during 2001–02. Further production contracts followed, with the latest in April 2005, where Raytheon received its seventh production contract for 42 systems totalling US$44 million. This contract brought total orders to 284 receivers plus spares. It was reported on 13 September 2006 that the Australian Defence minister has accepted a recommendation to stop development of the ALR-2002 for the F/A-18, the RAAF will most likely install the ALR-67V(3) instead. On 3 August 2007, ''Deagel.com'' reported that the

Defense Security Cooperation Agency The Defense Security Cooperation Agency (DSCA) is an agency within the United States Department of Defense (DoD) which provides financial and technical assistance, transfer of defense materiel, training and services to allies, and promotes militar ...

notified

Congress A congress is a formal meeting of the representatives of different countries, constituent states, organizations, trade unions, political parties, or other groups. The term originated in Late Middle English to denote an encounter (meeting of ...

of a possible foreign military sale to Canada of AN/ALR-67(V)3 radar warning receivers as well as associated equipment and services. The total value, if all options are exercised, could be as high as $209 million. This notice of a potential sale is required by law; it does not mean that the sale has been concluded.

Other variants

A variant of this system, designated AN/ALR-67(V)4, was included in a proposed upgrade for the

F-14A Tomcat The Grumman F-14 Tomcat is an American carrier-capable supersonic aircraft, supersonic, twinjet, twin-engine, Tandem#Aviation, tandem two-seat, twin-tail, all-weather-capable variable-sweep wing fighter aircraft. The Tomcat was developed for t ...

but was never implemented due to the retirement of those aircraft in the United States.

References

External links

AN/ALR-67 at FAS

Northrop Grumman product information on the ALR-67(V)2

Raytheon product information on the ALR-67(V)3
{{Electronic warfare navbox Radar warning receivers Electronic warfare equipment Military electronics of the United States Raytheon Company products Radiofrequency receivers Equipment of the United States Air Force

AN/ALR-67(V) and AN/ALR-67(V)2

Raytheon AN/ALR-67(V)3

Other variants

References

See Also

External links