Changes

'''Joint Direct Attack Munition''' ('''JDAM''') is a [[US]]-produced kit attached to a conventional gravity bomb to convert a dumb bomb into a guided munition or smart bomb.

'''Joint Direct Attack Munition''' ('''JDAM''') is a [[US]]-produced kit attached to a conventional gravity bomb to convert a dumb bomb into a guided munition or smart bomb.

The kit adds a front and tail section to standard iron (dumb) bombs of different sizes.  According to Dr. Thomas Wittington, "15 different JDAM kits are in service, equipping a range of bombs weighing from 500 lb (225 kg) to 2,000 lb (900 kg)."<ref>https://www.rusi.org/explore-our-research/publications/commentary/jamming-jdam-threat-us-munitions-russian-electronic-warfare</ref> Pre-[[Bidenomics]], the kits ranged in price from $21,000 to $84,000.  

The kit adds a front and tail section to standard iron (dumb) bombs of different sizes.  According to Dr. Thomas Wittington, "15 different JDAM kits are in service, equipping a range of bombs weighing from 500 lb (225 kg) to 2,000 lb (900 kg)."<ref>https://www.rusi.org/explore-our-research/publications/commentary/jamming-jdam-threat-us-munitions-russian-electronic-warfare</ref> Pre-[[Bidenomics]], the kits ranged in price from $21,000 to $84,000.  The kits were designed by McDonnell Douglas and continue to be manufactured by [[Boeing]] (which took over McDonnell Douglas' operations).

JDAM uses [[GPS]] high precision encrypted signals plus an inertial navigation system and has been improved with anti-spoofing technology.  

JDAM uses [[GPS]] high precision encrypted signals plus an inertial navigation system and has been improved with anti-spoofing technology.