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XM-1156 Precision Guidance Kit (PGK) for 155mm HE projectiles

HAZORD

Well-Known Member
Premium Member
A bullet with your address on it!

Recently, while doing some research I collected some information about a new GPS guidance device and fuze currently being employed by the U.S. in the Middle East. Unlike the Excalibur precision guided projectile, the PGK replaces the fuze in one of the three standard U.S. 155mm HE projectiles. It is programmed to hit a specific GPS location and will hit with a CEP of 50 meters or less, no matter the range, out to 30 Km., and the thing only costs about $3,000.00 per copy.

The attached chart of attainable accuracies shows that the further you fire a RAP M549 projectile, the greater the error in coming close to the target. The XM-982 Excalibur has the greatest accuracy, but costs a fortune and is a high tech munition. The PGK is simply a guidance unit/fuze combination that will screw into any deep fuzewell currently for 155mm HE projectiles. That is the phase I application. Phase II is designed to refine the PGK to also work on 105mm Howitzer projectiles and increase the accuracy. Phase III is to increase its usage for all of the 155mm projectiles.

These units are currently in use in the Middle East using the phase I model. Due to the small file size limits of the BOCN file posting guidelines I can't post pdfs, but much information is available using google and searching "Precision guidance kit"

If anyone comes up with a spare, I need one for the fuze collection (lol).

Info:

http://www.globalsecurity.org/military/systems/munitions/m1156.htm

http://www.dtic.mil/ndia/2010fuze/IVAPergolizzi.pdf

http://www.atk.com/products/documents/pgk - precision guidance kit.pdf

http://www.dote.osd.mil/pub/reports/FY2010/pdf/army/2010pgk.pdf
 

Attachments

  • CEP Chart for variations.jpg
    CEP Chart for variations.jpg
    94.4 KB · Views: 31
  • operational view.jpg
    operational view.jpg
    89.7 KB · Views: 36
  • PGK Design Description.jpg
    PGK Design Description.jpg
    97.3 KB · Views: 37
  • PGK with protective packaging.jpg
    PGK with protective packaging.jpg
    96 KB · Views: 37
  • US 155mm HE projos lores.jpg
    US 155mm HE projos lores.jpg
    97.1 KB · Views: 37
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