Also known as AN/ALQ-144 IRCM, AN/ALQ-144 infra-red guided missile countermeasure, AN/ALQ-147, AN/ALQ-157, ALQ-144
right|thumb|An ALQ-144 jammer mounted on an OV-10 Bronco. The AN/ALQ-144, AN/ALQ-147, and AN/ALQ-157 are US infrared anti-aircraft missile countermeasure devices (IRCM). They were developed by Sanders Associates in the 1970s to counter the threat of infrared guided surface-to-air missiles like the 9K32 Strela-2. While decoy flares were effective at jamming first generation infra-red guided missiles, each flare was only effective for a short period. If an aircraft needed to loiter over a high risk area or was flying slowly (as helicopters do), it would require a large number of flares to decoy
right|thumb|An ALQ-144 jammer mounted on an OV-10 Bronco. The AN/ALQ-144, AN/ALQ-147, and AN/ALQ-157 are US infrared anti-aircraft missile countermeasure devices (IRCM). They were developed by Sanders Associates in the 1970s to counter the threat of infrared guided surface-to-air missiles like the 9K32 Strela-2. While decoy flares were effective at jamming first generation infra-red guided missiles, each flare was only effective for a short period. If an aircraft needed to loiter over a high risk area or was flying slowly (as helicopters do), it would require a large number of flares to decoy any missile fired at it. The IRCM provided constant protection against infra-red guided missiles.
The ALQ-144 and ALQ-147 were first delivered to the US military in 1981. Currently there are over 3,500 in use with the US military, and a total of 6,000 in use by nineteen countries globally. Seven hundred ALQ-157 systems are currently in service.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).