L118 Light Gun

The L118 Light Gun is a 105 mm towed howitzer developed in the United Kingdom by the Royal Armament Research and Development Establishment (RARDE). It was designed to meet a 1965 General Staff Requirement for a weapon to replace the 105 mm pack howitzer L5, which was identified as having insufficient range and robustness. Prototypes underwent testing in 1968, leading to several redesigns to improve the assembly's durability. Production was authorized in 1975 at the Royal Ordnance Factory Nottingham, and the weapon entered service with the British Army in 1976.

The gun utilizes L19 ordnance on an L17 carriage. Its design includes a vertically sliding block breech and a box trail rather than a split trail. The L118 fires separate-loading cased-charge ammunition, requiring the projectile to be hand-rammed before the propellant cartridge is inserted. Available ammunition types include high explosive, smoke base ejection, target marker, illuminating, and high explosive squash head rounds for direct fire against buildings or armored targets. The gun is designed for 360-degree traverse and high-angle fire. Mobility is achieved through towing by vehicles such as the Land Rover 101 Forward Control, Pinzgauer ATVs, or Bv 206 tracked vehicles, and it can be transported by transport aircraft or as underslung loads by various helicopters.

Modernization efforts replaced traditional optical dial sights with the LINAPS artillery pointing system. This self-contained system utilizes ring laser gyros, inertial direction measurement, and GPS to determine elevation and azimuth, allowing the gun to be laid without external references. A muzzle velocity measuring radar is also integrated into the system. The L119 variant was developed to fire semi-fixed US M1 type ammunition, utilizing a different barrel and a percussion firing mechanism.

The L118 and its variants are operated by numerous nations across Europe, the Middle East, Africa, Asia, and the Americas. In British service, the gun saw extensive use during the 1982 Falklands War, where batteries fired high volumes of rounds during the final phases of the conflict. It was also deployed by British forces during operations in Afghanistan. The United States operates a licensed version designated as the M119, which incorporates a digital fire-control system. Australia and New Zealand formerly operated a licensed version known as the Hamel gun. In 2022, L119 and M119 variants were transferred to Ukraine by several nations to support military operations, with training provided by international instructors. Dedicated ceremonial versions, modified to fire only blank cartridges, are used for saluting purposes in the United Kingdom.