Back (Yugo, Modern)
This is a 40mm hollow charge device, made of aluminum and plastic, with steel
balls molded into the warhead body for additional local fragmentation effect.Although the acronym HEAT (High Explosive Anti Tank) is still used, this would be more appropriately called an “anti-armor” grenade, as it would not have much effect on modern tanks. Likely intended for armored troop carriers and similar targets. |
As with all "hollow charge" munitions, most of the space inside the warhead is empty. The explosive filling the bottom third under a cone shaped metal liner (not shown). |
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As with the M60 Rifle Grenade, the safety pin is unscrewed, rather than pulled. It prevents movement of the internal parts. The base detonating fuze consists of a striker, in a central tube, which slides forward on impact hitting the detonator. This striker is restrained by three small locking balls, set in holes in the wall of the central tube. Those balls are held in place by a moveable outer sleeve. A spring pushes the sleeve up. A large single ball prevents the sleeve from moving completely forward, this keeps the holes for the locking balls covered and the balls in place. At the moment of firing, inertia causes the sleeve to move back, compressing the spring. This frees the large ball which falls aside. As the grenade departs, the spring pushes the sleeve back up. Without the big ball blocking the way, the holes are uncovered. The three locking balls are no longer held in place. The striker is free, which moves forward upon impact detonating the grenade. |
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