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Joint Direct-Attack Munition
The Joint Direct Attack Munition (JDAM) GBU-31 is a low cost guidance kit which converts existing unguided free-fall bombs into accurately guided "smart" weapons. JDAM consists of a new tail section containing an Inertial Navigation System (INS)/Global Positioning System (GPS) guidance to existing inventories of Mk.83 and BLU-110 1,000 pound (450 kg) bombs, and the Mk.84 and BLU-109 2,000 pound (900 kg) bombs. JDAM provides highly accurate weapon delivery in any "flyable" weather and can be dropped up to 15 miles from a target with updates from GPS satellites to help guide the bomb to the static target.
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All graphics Copyright © Torsten Anft
Photos: US Navy
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