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120 mm rocket-assisted HE bomb M77
Категорія
Ammunition, Missiles and precision weapons
Armament All 120 mm smoothbore mortars. Development By Yugoimport SDPR to improve the range of existing Yugoslavian service mortars. Description The body of this bomb resembles that of an artillery shell, a tapering ogive leading into a parallel-sided body with no boat tail. At the end of the body a tail unit is attached, consisting of a set of fins folded up jack-knife fashion with their tips beneath the bomb base. There is also a tubular cartridge container which houses a primary cartridge and supports the six
secondary increments in horseshoe containers. In addition, the cartridge container carries a delay system; and the rear one-third of the bomb body is a separate compartment, carrying a rocket motor which exhausts through a venturi in the base of the bomb. The fins are shaped and canted slightly so as to induce a degree of spin stabilisation into the flight of the bomb. The bomb is drop fired in the usual manner; the rocket assistance is optional. As the bomb leaves the muzzle, the fins swing back and lie horizontally, extending well over the calibre and giving excellent stability to the bomb in flight. If rocket assistance is selected, a delay unit in the cartridge container causes the container to be discarded shortly after leaving the muzzle; a further delay unit ignites the rocket motor during the upward leg of the trajectory, extending the trajectory and the range. Manufacturer Yugoimport SDPR.