The A and B Batteries of 2nd Battalion, 15th
Field Artillery Regiment have recently received and employed precision guided
munitions as part of the fielding phase in the XM1156 Precision Guidance Kit
project. Initial field testing on the low-fi
alternative to Raytheon’s Excalibur munitions began in March, and is expected
to be completed by the end of June.
The XM1156 Precision Guidance Kit, or PGK, is the latest in “smart”
munitions that use Global Positioning and in-flight corrections to increase the
accuracy of the round. According to the performance specifications listed by
Peter Burke, the Deputy Project Manager, an 155mm PGK round fired from a M549A1
Paladin, will be accurate within 50 meters out to 30km, as opposed to 267
meters with a standard round.
This increased accuracy mitigates the risk for collateral
damage and civilian casualties in and around Afghanistan’s urban centers, but
also allows for increased support of the maneuver mission, improving lethal
fires as well. Spc. Clayton of Battery B said that the increase in accuracy was
“impressive… and immediately noticeable” in comparison to the standard round.
Logistically speaking, the PGK is a relative no-brainer. It
is currently compatible with two versions of the standard 155mm rounds, the
M795 High Explosive and M549/A1 Rocket Assisted Projectile. Integration into
the A and B batteries has been as simple as screwing on the PGK like any other fuse.
Plans for the development of a 105mm compatible model are also in the works, as
well as expanding the fusing options for the 155mm.
On the dollar, the PGK is a significant development in the
field of precision guided artillery. The current standard, the XM982 Excalibur costs $89,000 per round, in
comparison to $300 dollars for a standard shell. Currently the reported unit
cost of the PGK is less than $3,000 with virtually the same capabilities as the
Excalibur. Perhaps the future of Precision Guided Munitions has a new face.