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Abbreviations


 

The Infantry - 51mm and 60mm Light Mortars - Grenade Machine Gun - Armed Forces - a5a13.2 - British Army

INFANTRY

51MM, 60MM LIGHT MORTARS AND GRENADE MACHINE GUN

51 MM Light Mortar

The 51 mm Light Mortar is a weapon that can be carried and fired by one man, and is found in the HQ of an infantry platoon.

The mortar is used to fire smoke, illuminating and HE rounds out to a range of approximately 750 m; a short range insert device enables the weapon to be used in close quarter battle situations with some accuracy.

The 51 mm Light Mortar has replaced the older 1940s 2' mortar.

Although the weapon remains available it is approaching its planned out of service date across the armed forces. The capability provided by the 51 mm mortar is being replaced by a combination of systems including the 40 mm Underslung Grenade Launcher and rocket hand-fired illumination and smoke rounds. In Afghanistan, the 51 mm capability is being augmented by a purchase of a more modern 60 mm mortar.

51mm Light Mortar Statistics

About 1000 available

Range

750m

Bomb Weight

800gms (illuminating)
900gms (smoke), 920gms (HE)

Rapid Rate of Fire

8rpm

Length of barrel

750mm

Weight Complete

6.275kg

Calibre

51.25mm

60 MM Light Mortar

Procured under an Urgent Operational Requirement (UOR) in 2007 the M6-895 60 mm Mortar provides the infantry with a light mortar capability out to almost 4 kms in both the direct and indirect fire roles. Capable of firing up to 12 rounds per minute the M6-895 has replaced the 51 mm Mortar in operational service.

Figures suggest that in the 12 months to November 2009 more than 3,500 60 mm mortar rounds were fired on operations and training. The cost of a 60 mm mortar round varies from between 185 - 640 dependent upon the type of round that is fired. In the main high explosive (HE) and illuminating rounds are used.

60mm Light Mortar Statistics

Max Range

3,800m

Barrel Weight

5.3kg

Bipod Weight

12kg

Base Plate Weight

4.8kg

Grenade Machine Gun (GMG)

This is a 40 mm high explosive grenade weapon that has a range of up to 1.5 km for point targets and about 2 kms for neutralising/suppressing area targets. Capable of firing up to 340 rounds per minute it is usually mounted on TUM/Land Rover type or Protected Vehicles because of the problems associated with carrying large amounts of ammunition.