Missile SS.12 / AS.12

Developed in the mid-1950s, this missile system emerged as a significantly more powerful derivative of earlier French wire-guided anti-tank weapons. Conceived as a scaled-up design, it was intended from its inception to serve primarily in anti-shipping and anti-fortification roles, delivering a much heavier warhead over a greater distance than its predecessors. Trials began in 1956 for the initial surface-to-surface naval variant, with tests for an air-launched version following shortly after in 1957, establishing its dual-role nature early in its history.

The missile relies on a Manual Command to Line of Sight (MCLOS) wire-guided system, where an operator steers the weapon in-flight using a joystick. To aid in tracking, the missile is equipped with two flares that ignite upon launch. Propulsion is provided by a two-stage solid-fuel rocket motor, consisting of a powerful booster and a long-burning sustainer. It is steered by a thrust-vectoring system that deflects the sustainer motor’s exhaust. The weapon could be armed with several distinct warheads, including a fragmentation type for anti-personnel use, a shaped charge for anti-tank missions, and a semi-armour piercing variant designed for naval targets. This latter warhead featured a delayed-action fuze, allowing it to penetrate a ship’s structure before detonating. The missile’s destructive power is considered roughly equivalent to that of a medium-caliber artillery shell.

Entering service with the French Navy in 1960, the missile was initially deployed in an air-to-surface capacity from helicopters and maritime patrol aircraft. Its utility expanded significantly when it was adapted for small naval craft; Libya became the first nation to operate it from fast patrol boats in 1968, demonstrating a cost-effective method for equipping light vessels with heavy firepower. This model was subsequently adopted by numerous other navies. The system has been launched from a wide array of platforms, including various helicopters, fixed-wing aircraft, and ground or naval launchers. It saw notable combat use during the 1982 Falklands War, where it was fired by British helicopters against the Argentine submarine ARA Santa Fe while it was surfaced. In a more unconventional mission during the same conflict, it was also used in a ground attack role against a building in Port Stanley.