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81 mm HE bomb M374, M374A2
Region
United States
Category
Ammunition, Missiles and precision weapons
Armament US M1, M29 , M29A1 , and M252 81 mm mortars and other medium- and high-pressure mortars. Development By US Army, based upon British designs for the L16 mortar. These rounds are no longer in production in the US. The M374A2 remains in US stockpiles for contingency and training use. Description This resembles the M362 bomb, but it is fitted with a plastic obturating ring in a groove behind the bourrelet and has a plain fin assembly instead of the drum tail. The M374 has straight fins, while the M374A2 has
the fins canted 5º to induce spin stabilisation during flight and improve consistency. The M374A2 also has a moisture proof ignition system, moisture resistant propelling charges and improved protective packaging. The bomb body may be of forged steel or pearlitic malleable iron (PMI). The percussion primer and ignition cartridge system in the tailboom is as the earlier bomb, but the secondary charge system differs by having nine fabric bags. The lowest (Charge 1) bag being wrapped around the tailboom outside the ignition cartridge, and the remaining eight bags assembled longitudinally alongside the boom and secured by clips, so concealing the Charge 1 bag from view. Manufacturer US government contractors.