Successor to the AGM-45 Shrike and AGM-78 Standard, the AGM-88 HARM is an anti-radar missile, used to attack opposing air defenses, most often as part of SEAD (Suppression of Enemy Air Defenses) missions. The HARM can be launched with or without a valid target. If it has a target, it will use its passive radar tracking capabilities to guide itself to the target, and if the target shuts off its radar while the HARM is in flight, it will engage its backup inertial navigation system (INS) and guide itself to its targetÆs last known position. If launched without a target, it will fly until a radar activates within its detection area, and then engage it as above.%n
