 When the booster motors have accelerated the missile to past Mach 1.8, the kerosene-fueled ramjet engines kick in, accelerating the missile to a cruise speed of greater than Mach 2.0.The maximum range is 180 km, and it can fly below 50 meters at its cruise altitude.The missile is programmed to descent from cruising altitude to a much lower altitude before the active-radar terminal phase begins, then dive onto the target just prior to impact.