AN/ALQ-144

AN/ALQ-144
Unknown author · Public domain · source
Name	AN/ALQ-144
Caption	Infrared countermeasure unit
Origin	United States
Type	Infrared countermeasure
Used by	United States Air Force; United States Navy; United Kingdom Royal Air Force; Israeli Air Force
Manufacturer	Honeywell; Litton Industries
Production date	1970s–1990s

AN/ALQ-144 is a nose- or pod-mounted infrared countermeasure system developed in the 1970s to protect transport and rotary-wing aircraft from man-portable air-defense system threats such as the 9K32 Strela-2, FN-6, and FIM-92 Stinger. The system was fielded by operators including the United States Air Force, Royal Air Force, Israel Defense Forces, and French Air Force for operations in conflict zones such as the Yom Kippur War aftermath era and later Operation Desert Storm. It uses a thermal emitter to create a false target for infrared-guided missiles, integrating with aircraft such as the Lockheed C-130 Hercules, Sikorsky UH-60 Black Hawk, and Boeing CH-47 Chinook.

Design and Development

The device was developed by contractors including Honeywell International Inc. and Litton Industries during a period influenced by events like the Vietnam War and lessons from the Cold War theater, with engineering inputs from laboratories tied to the Defense Advanced Research Projects Agency and the Lincoln Laboratory. Designers accounted for threats exemplified by the Soviet Union-supplied 9K34 Strela-3 and rocket-propelled systems proliferating after the 1973 Arab–Israeli War, prompting collaboration with users such as the United States Army and Royal Australian Air Force. Development cycles were affected by procurement programs administered by the United States Department of Defense and testing at ranges used by Edwards Air Force Base and White Sands Missile Range.

Technical Specifications

The countermeasure employs a pyrophoric or electrically heated radiator and modulation electronics patterned after research from institutions like Massachusetts Institute of Technology and California Institute of Technology. Typical installations include a thrust- or pod-mounted housing with power and cooling interfaces compatible with platforms certified by organizations such as the Federal Aviation Administration and maintenance doctrine influenced by North Atlantic Treaty Organization interoperability standards. Output characteristics were measured against seekers similar to those on the SA-7 family using test instrumentation from facilities affiliated with the National Institute of Standards and Technology. Weight, power draw, angular coverage, and effective rejection range were specified for use on airframes including the C-130J Super Hercules and utility helicopters certified under directives issued by the United States Air Mobility Command. Avionics integration followed guidelines from the Air Force Materiel Command.

Operational Use and Deployment

Units were deployed on tactical airlift and rotary-wing fleets during operations such as Operation Urgent Fury, Operation Provide Comfort, and later Operation Enduring Freedom. Maintenance and logistic support were coordinated through depots associated with the Aeronautical Systems Center and contractor support hubs in collaboration with the Ministry of Defence (United Kingdom) and indigenous maintenance units within the Israel Defense Forces. Tactical doctrine for use on missions involving RAF C-130K Hercules sorties and USMC CH-46 Sea Knight operations emphasized emitter-on profiles during takeoff and landing in hot-zone airfields like those in Somalia and Bosnia and Herzegovina.

Countermeasures and Effectiveness

Early evaluation against infrared-guided threats showed effective decoying of first- and second-generation seekers similar to those on export versions used by proxy forces during the Iran–Iraq War. However, adversaries adapted with counter-countermeasures including newer seekers akin to those in the 9M39 Igla family and tactics observed in engagements during Operation Iraqi Freedom. Effectiveness assessments by analysts from the RAND Corporation and studies published by the Institute for Defense Analyses highlighted that advances in focal plane array technology and proportional navigation in later missiles reduced the system's relative performance, prompting doctrine updates from commands such as the United States Central Command.

Variants and Upgrades

Variants and follow-on systems were developed alongside competition from suites like the AN/AAR-54 and later directed-energy concepts studied under programs run by DARPA. Upgrades incorporated improved modulation schemes, cooled emitters, and integration with missile-warning sensors similar to those produced by BAE Systems and Northrop Grumman. International retrofit programs were negotiated between vendors and customers including the Royal Australian Navy and the Turkish Air Force, adapting mounts for platforms such as the Lockheed P-3 Orion and tactical transports procured by the French Air Force.

Incidents and Notable Engagements

The system was credited with successful decoying of shoulder-fired missiles in multiple incidents during conflicts like Operation Desert Storm and counterinsurgency operations in Afghanistan (2001–present), while investigators from institutions such as the National Transportation Safety Board and military accident boards reviewed events where infrared countermeasures were implicated in post-incident analyses. Notable deployments occurred during humanitarian airlift missions to Rwanda and combat support sorties over Iraq, and equipment performance influenced procurement decisions by militaries including the Canadian Forces and Spanish Air Force.

Category:Aircraft countermeasures Category:United States military equipment