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107 mm smoke bomb M328, M328A1
Region
United States
Category
Ammunition, Missiles and precision weapons
Armament US M30 107 mm mortars. Development By US Ordnance Department as an improvement upon earlier models. Description This cartridge is similar to the M329A1 in that it uses the propelling charge M36A1 and the design of the tail assembly. It differs internally, being filled with a centralised axial high-explosive burster assembly. The surrounding body cavity is filled with White Phosphorus (WP) smoke composition. There are four perforated vanes attached to the central burster; these act as paddles to impel the
viscous WP filling to take up spin. Without these vanes the inertia of the filling, moving irregularly inside the spinning bomb body, would give rise to erratic ballistics. The M328 and M328A1 differ in the composition of their propelling charge, and the A1 model uses a higher grade steel for the body, thereby gaining space and permitting the loading of a larger amount of WP. Manufacturer US government contractors.