What is the difference between excalibur and PGK?
Excalibur was developed as a longer-range alternative to conventional artillery shells, with GPS guidance for improved accuracy. Excalibur has a range of approximately 40 to 57 kilometers depending on configuration, with a circular error probable (CEP) of 4 meters , while unguided artillery shells can land up to 150 meters from the target at a range of 24 km.
PGK will be complementary to excalibur, not a competitor. It will provide more efficient suppression vice the point precision of excalibur. It will be a cost-effective way to improve the accuracy of the conventional cannon ammunition inventory without having to modify the projectiles.
The PGK is set by the Enhanced Portable Inductive Artillery Fuze Setter (EPIAFS). PGK is a guidance kit that replaces the standard HE burster fuze. It will compensate for probable error in range (PEr) and PE in deflection (PEd).
