Description: The Joint Direct Attack Munition (JDAM) is a guidance kit that
converts existing unguided gravity bombs, or dumb bombs, into
all-weather smart munitions. JDAM equipped bombs are guided to their
target by an integrated inertial guidance system coupled with a
Global Positioning System (GPS) receiver for enhanced accuracy,
giving them a published range of up to 15 nautical miles (28 km)
from the release point. The programs approach was in contrast to
earlier laser-guided bomb and imaging infrared technology, both of
which can be hindered by adverse ground and weather conditions;
however, laser designators are now being fitted to some JDAMS as
well, because of their suitability for attacking certain types of
targets. The JDAM is a joint United States Air Force and United
States Navy program. (see http//en.wikipedia.org/wiki/JDAM)