PROPELLANT CHARGE OF MORTAR ROUND Russian patent published in 2012 - IPC F42B5/16 

FIELD: weapons and ammunition.

SUBSTANCE: main ignition charge comprises an extended paper cartridge with a metal base with the ratio of length to diameter equal to 5.5÷6.5, where an igniting cap is installed. In the cartridge there is a part of the igniter charge from a gunpowder with weight of 60-70% of total mass, separated from the igniting cap by membranes from a nitrate film, and two bundles of thin-dome ballistit powder. Between bundles of thin-dome ballistit strip powder there is the second part of the igniter charge from gunpowder in a cloth powder bag, and a wad compensator is installed above the upper half-charge. With the ratio of charge length to the extended cavity of the mine stabiliser equal to 0.75÷0.9 there is also a paper tube installed into the stabiliser tube.

EFFECT: higher reliability of propellant charge operation.

2 cl, 1 dwg, 1 tbl