The ALE-55 is RF countermeasure designed to protect an aircraft from radar guided missiles. It consists of an aircraft-towed decoy and onboard electronics. It works together with the aircraft's electronic warfare system to provide radar jamming. In addition, it can also be used in a backup mode as a signal repeater, which allows it to lure incoming missiles away from their actual target. It is currently in use with the F/A-18E/F Super hornet, but can be adapted to a wide variety of platforms with minimal modification.