The AGM-114 Hellfire is an air-to-ground missile (AGM) first developed for anti-armor use, later developed for precision drone strikes against other target types, especially high-value targets. It was originally developed under the name Heliborne laser, fire-and-forget missile, which led to the colloquial name "Hellfire" ultimately becoming the missile's formal name. It has a multi-mission, multi-target precision-strike ability and can be launched from multiple air, sea, and ground platforms, including the MQ-1 Predator and MQ-9 Reaper. The Hellfire missile is the primary class air-to-ground precision weapon for the armed forces of the United States and many other nations. It has also been fielded on surface platforms in the surface-to-surface and surface-to-air roles. Description Most variants are laser-guided, with one variant, the AGM-114L "Longbow Hellfire", being radar-guided. Laser guidance can be provided either from the launcher, such as the nose-mounted opto-electronics of the AH-64 Apache attack helicopter, other airborne target designators or from ground-based observers, the latter two options allowing the launcher to break line of sight with the target and seek cover. The development of the Hellfire Missile System began in 1974 with the United States Army requirement for a "tank-buster", launched from helicopters to defeat armored fighting vehicles. The Hellfire II, developed in the early 1990s is a modular missile system with several variants, and entered service with the U.S. Army in 1996. Hellfire II's semi-active laser variants—AGM-114K high-explosive anti-tank (HEAT), AGM-114KII with external blast fragmentation sleeve, AGM-114M (blast fragmentation), and AGM-114N metal augmented charge (MAC)—achieve pinpoint accuracy by homing in on a reflected laser beam aimed at the target. The General Atomics MQ-1 Predator and MQ-9 Reaper unmanned combat aerial vehicles (UCAVs) carry the Hellfire II, but the most common platform is the AH-1Z Viper helicopter gunship, which can carry up to 16 of them. The AGM-114L, or Longbow Hellfire, is a fire-and-forget weapon: equipped with a millimeter-wave (MMW) active radar homing, it requires no further guidance after launch—even being able to lock on to its target after launch—and can hit its target without the launcher or other friendly unit being in line of sight of the target. It also works in adverse weather and battlefield obscurants, such as smoke and fog, which can mask the position of a target or prevent a designating laser from forming a detectable reflection. Each Hellfire weighs , including the warhead, and has a range of depending on trajectory. The AGM-114R "Romeo" Hellfire