Fire-and-forget is a type of missile guidance which does not require further external intervention after launch such as illumination of the target or wire guidance, and can hit its target without the launcher being in line-of-sight of the target. This is an important property for a guided weapon to have, since a person or vehicle that lingers near the target to guide the missile (using, for instance, a laser designator) is vulnerable to attack and unable to carry out other tasks. Generally, information about the target is programmed into the missile just prior to launch. This can include coordinates, radar measurements (including velocity), or an infrared image of the target. After it is fired, the missile guides itself by some combination of gyroscopes and accelerometers, GPS, onboard active radar homing, and infrared homing optics. Some systems offer the option of either continued input from the launch platform or fire-and-forget. Fire-and-forget missiles can be vulnerable to soft-kill systems on modern main battle tanks, in addition to existing hard-kill systems. As opposed to unguided RPGs which require a hard-kill system (a counter projectile(s) used to destroy the incoming missile), fire-and-forget missiles can often be jammed by means such as electro-optical dazzlers. Examples Many of these are infrared homing missiles; some of the remainder (e.g. AIM-120) are active radar guided. AGM-84H/K SLAM-ER AAM-4 (Type 99 AAM) AASM HAMMER (SBU-38, -54, -64) Akeron MP AGM-65 Maverick AGM-84 Harpoon AGM-114L Longbow Hellfire AIM-9 Sidewinder AIM-54 Phoenix AIM-120 AMRAAM Akash missile CITEFA AS-25K Astra missile Brimstone Brahmos Supersonic Land Attack Missile EXACTO AM39 Exocet FGM-148 Javelin FIM-92 Stinger Firestreak (1959–1988; British tail-chase infrared AAM fitted to Sea Vixen, Javelin, Lightning.) Hermes (missile) Sosna-R HJ-9A IRIS-T Kh-25 (Soviet Union) Kh-29D Kh-35 Kh-59 LFK NG MICA Nag PARS 3 LR PL-12 RBS 15 Red Dean (1950s British active-radar AAM. Early trial firings only; cancelled before service entry.) Red Top (1964–1988; British all-aspect infrared-homing missile fitted to Sea Vixen and Lightning.) Roketsan UMTAS RIM-66 Standard SM2, blocks IIIB and IVA only RIM-174 Standard ERAM Spike (missile) SRAW Predator Antitank Missile Type 01 LMAT TUBITAK-SAGE SOM (missile) (Turkey) Vympel R-27 Vympel R-73 Vympel R-77 FN-6 Kornet-EM 9M123 Khrizantema 9K333 Verba P-800 Oniks 3M-54 Kalibr Skif (ATGM) Shershen HJ-12 Nag/Prospina Raybolt See also Precision-guided munition Command guided References Missile guidance Weapon guidance