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Cartridge 76 mm HESH-T L29
Регіон
Canada
Belgium
Категорія
Ammunition, Missiles and precision weapons
The 76 mm L29 HESH-T (actual calibre is 76.2 mm) is a one-piece round using a thin-walled projectile. It has a short rounded ogive and is filled with RDX/Wax initiated by an L71A1 base detonating fuze. The base of the projectile also houses an L5A2 tracer. On impact the ogive and shell wall collapse to spread a 'plaster' of explosive against the target. As the base fuze detonates the explosive, the resultant detonation pressures from the 'plaster' are directed against and through the surface of the target. The
relatively short brass cartridge case is filled with 610 g of NQ/M 07 triple-base propellant and is fitted with a percussion primer. The 76 mm L29 HESH-T can defeat 90 mm of armour plate at a 60º angle of attack at combat ranges up to 2,500 m. The round is claimed to have a good graze performance and is only slightly less effective against troops in the open than an HE round. An inert 76 mm SH /Prac L40A1 is available for training purposes. The L40A1 is similar overall to the service L29 HESH-T although the explosive filling is replaced by an inert high-explosive substitute. It is possible to fit this round with a live fuze, together with a flash pellet, to provide an indication of the point of impact by the production of a flash and a cloud of smoke. At realistic combat ranges the 76 mm SH/Prac L40A1 matches the L29 HESH-T trajectory and has the same weights. MECAR SA of Belgium also produce a 76 mm HESH-T-TP-T M331. Originally developed for use with the 76 mm L3A1 gun (later developed to the L5A1 standard) fitted to the Saladin (6 × 6) armoured car, the L29 HESH-T cartridge is also used with the 76 mm L23A1 gun which is lighter than the L5A1 but has the same overall performance. The L26 HESH-T series of projectiles is intended to be a general purpose anti-hard target high-explosive round and is also effective against concrete fortifications, buildings and soft-skinned vehicles. In April 1992, a ban was placed on firing L23A1 guns on British Army Scorpions and the gun was withdrawn from British Army service, along with the Scorpions. A special decoppering round, the L44, is available. It has the same weights and performance as the L29 HESH-T.