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107 mm illuminating bomb M335, M335A1
Region
United States
Category
Ammunition, Missiles and precision weapons
Armament US M30 107 mm mortars. Development By US Ordnance Department as improvement on earlier models. Description This is of the same general form as the HE M329A1, differing principally by having the base of the bomb as a separate component attached to the body by shear pins. The bomb is assembled with a mechanical time fuze and consists of five major components: an illuminating canister assembly, a parachute assembly, an expelling charge assembly, a parachute holder assembly and the fuze. The internal
components are keyed together to prevent differential rotation in flight. The illuminating canister is fitted with anti-rotational brakes that reduce canister spin at the time of ejection and prevent the parachute lines from twisting. When the time fuze functions, it ignites the expelling charge which explodes. The flame ignites the flare composition; the gas pressure forces the flare container away from the fuze, thus putting pressure on the baseplate and shearing the connecting pins. The plate and cartridge container fall away and the pressure forces the parachute and flare container from the bomb body. As the flare container exits, the two hinged plates are thrown outwards by springs and act as airbrakes to reduce the spin on the flare container, this ensures the composition burns evenly and progressively during its fall. The M335 and M335A1 differ only in filler and performance is essentially identical, except as noted. Manufacturer US government contractors.