Lockheed Martin began developing America's LOSAT (line of sight anti-tank) system in the late 1980s.
LOSAT uses kinetic energy, rather than an explosive warhead, to defeat its target. It fires a Kinetic Energy Missile (KEM) at a speed of more than 4,920 ft/s (1500m/s). The KEM weighs 169.8 pounds (77kg), and features a long rod