Towed decoy systems are used to protect military aircraft from radar-guided missiles. These countermeasures are towed behind the host aircraft protecting it against both surface-to-air and air-to-air missiles. They provide a radiowave reflecting bait that attracts the RF-guided missiles away from the intended target.
Unlike the miniature air launch decoys (MALD) and decoy jammers (MALD Jammers) being tested by the U.S. Air Force for B-52H bombers and F-16 Fighting Falcons to deceive ground radars and anti-aircraft systems, such decoys have a defensive purpose.
Many aircraft are equipped with such towed decoys. The U.S. F-18s and B-1s are equipped with the ALE-50 system, while the Eurofighter Typhoon is equipped with a Towed Radar Decoy carried in the starboard side wingtip pod.
According to the information released by Eurofighter, the TRD is attached to the pod using a Fibre Optic link used to send commands to the decoy radio frequency emitter to produce jamming signals required to lure the missile away from the “parent aircraft”.
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Even if the Eurofighter website contains several diagrams showing the Typhoon’s towed decoy, no image can be found of the decoy being towed by a plane, except the following ones taken by Gian Luca Onnis (during an unclassified test – image released).
