The LGM-118 Peacekeeper was a US Intercontinental Ballistic Missile whose deployment began in 1986 under the Reagan Administration as a deterring nuclear capability before a new Soviet threat: the SS-18 "Satan". Also known as the MX missile, the Peacekeeper was a three-stage rocket which was armed with ten W87 thermonuclear warheads fitted into a Mark-21 re-entry vehicle. Each of these warhead the had distructive capacity of 300 kiloton, about 22 times the power of Little Boy, which was the atomic bomb dropped on Hiroshima.
The LGM-118 Peackeeper was developed by Boeing, Martin Marietta, TRW, and the Denver Aerospace company at a cost of USD $ 60 million per unit. Including the Mark-21 RV on top, the solid fuel rocket was 71 ft 6 in (21.8 m) in length, and 7 ft 7 in (2.3 m) in diameter. Launched from fixed silos across continental United States, the LGM-118 had a range of 6,000 miles (9,700 km) and an Advanced Inertial Reference Sphere guidance system. The Peacekeeper was phased out on September 19, 2005.
LGM-118 Peacekeeper Documentary