July 30, 2014: The U.S. Army has two GPS guided artillery shells; Excalibur and the new XM1156 PGK (Projectile Guidance Kit). PGK is actually a large fuze that screws into the front of a 155mm or ...
July 23, 2017: While the GPS guided Excalibur 155mm artillery shell revolutionized the use of artillery when it appeared in 2005, it is being displaced by a smaller, less capable but much cheaper ...
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