Russia is equipping its aircraft including the new PAK FA fighters with several variants of a new air-to-surface missile. The missile projectiles known as X-59MK2 and X-58USHKE are designed to destroy located stationary ground targets. The targeting system combines both inertial and satellite gps/glonass, Sputnik reported Tuesday. A self-targeting optical-electronic device is activated on the last stage of the flight trajectory. The missile flies at an altitude of 50-300 meters. The missile can carry warheads of two types: penetrating and cluster. The second missile is equipped with self-directing navigational gear. It can fly three times faster than the speed of sound for a distance of 250 kilometers while carrying a 150-kilogram explosive warhead. Both missiles are being tested on board the PAK FA.