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Selex Galileo to upgrade British Army light gun

13 December 2011

The UK Defence Equipment and Support (DE&S) Artillery Systems Team has awarded a contract to Selex Galileo to upgrade the existing layers display and control unit (LDCU) of the British Army's 105mm L118 light gun.

Under the €5m (£4.3m) contract, the company will replace the current LDCU with a ten-inch display unit.

The LDCU is an 8.1-inch touch-sensitive, electro luminescent, man-machine interface of the laser inertial artillery pointing system (LINAPS), a navigation, pointing and weapon management system that replaced the optical sights on L118 guns.

The self-contained gun-mounted LINAPS uses three ring laser gyros to determine elevation angle and trunnion tilt angle and also helps in rapid and accurate artillery deployment in all weather conditions both by day and night.

The system is capable of conducting self-surveys using the Global Positioning System (GPS) or Inertial Navigation System (INS) and uses inertial direction measurement and distance measurement to facilitate rapid gun laying without external references.

The system contains powerful processing for fire control and for Nato and other ballistic calculations using Kalman filters, and is able to interface with a range of additional on-gun sensors and radios in a single unit.

The system is widely used by the UK, Canada, Thailand and Malaysia and was successfully deployed in operations in Afghanistan.

The L118 is a 105mm towed howitzer-fitted light gun with an INS-based Automatic Pointing System (APS), which enables the gun to be unlimbered and fire within 30 seconds.

The gun is used by the 29 Commando Regiment Royal Artillery (RA), 7th Parachute Regiment Royal Horse Artillery and 40 Field Regiment RA.

Image Caption: Selex Galileo is to upgrade the existing layers display and control unit (LDCU) of the British Army's 105mm L118 light gun.