JDAM (Joint Direct Attack Munition): A guidance kit that converts unguided free-fall bombs into precision-guided munitions using GPSGPS (Global Positioning System): A satellite-based navigation system that provides precise location, velocity, and timing information to military airc... More and inertial navigation. Developed by the U.S. military, JDAM kits consist of a tail section with control surfaces and a GPSGPS (Global Positioning System): A satellite-based navigation system that provides precise location, velocity, and timing information to military airc... More/INS guidance system that can be attached to various conventional bombs, most commonly Mk-82 (500 lb), Mk-83 (1,000 lb), and Mk-84 (2,000 lb) general-purpose bombs. Once released, the JDAM autonomously guides itself to programmed target coordinates in all weather conditions, achieving accuracy typically within 5-13 meters. The system’s relatively low cost, all-weather capability, and compatibility with multiple bomb types have made JDAMs one of the most widely used precision munitions in modern military operations. JDAMs can be employed from various altitudes and ranges, allowing aircraft to strike targets while remaining outside some threat envelopes. Advanced variants include the Laser JDAM, which adds laser guidance for terminal precision against moving targets.
