M1156 Precision Guidance Kit

M1156 Precision Guidance Kit
Diagram of XM1156 alongside standard fuse profile
TypeGPS-guided artillery fuze kit
Place of originUnited States
Service history
In service2015–present
Used by
Production history
DesignerAlliant Techsystems
Designed2007–2013
ManufacturerNorthrop Grumman Innovation Systems
Unit costUS $13,541[note 1]
Produced2013–present
No. builtOver 100,000[note 2]
Specifications
Mass3 lb (1.4 kg)
Length
  • 8.67 in (220.2 mm) overall
  • 3.75 in (95.25 mm) visible
  • 4.91 in (124.7 mm) intrusion
Detonation
mechanism
Impact and proximity-detonation functions

Guidance
system
GPS
Steering
system
Four fixed canards
AccuracyCEP of less-than 30 m (98 ft)[note 3]
Launch
platform
ReferencesJanes[1]

The M1156 Precision Guidance Kit (PGK), formerly XM1156, is a U.S. Army-designed precision guidance system to turn existing 155 mm artillery shells into smart weapons.[2] The prime contractor was Alliant Techsystems – later merging with Orbital Sciences Corporation to form Orbital ATK, in turn being taken over by Northrop Grumman and renamed Northrop Grumman Innovation Systems – and the industry team includes Interstate Electronics Corporation.[3] By April 2018, more than 25,000 PGKs had been produced.[4]

  1. ^ a b c d Janes (7 February 2023), "Northrop Grumman M1156 Precision Guidance Kit", Janes Land Warfare Weapons: Ammunition, Coulsdon, Surrey: Jane's Group UK Limited., retrieved 6 March 2023
  2. ^ XM1156 Precision Guidance Kit (PGK). Global Security.
  3. ^ "ATK Precision Guidance Kit (PGK)". ATK.
  4. ^ Orbital ATK is expanding to prepare for what they predict will be a surge in DoD buys of more lethal munitions. Defense News. 12 April 2018.


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