passive armor

passive armor

[′pas·iv ′är·mər]
(ordnance)
A protective device against shaped charge ammunition; designed to absorb the energy of a shaped charge.
References in periodicals archive ?
But Damon Walsh, executive vice president of Force Protection, says his company is working on "not just passive armor systems to stop threats, but also more sophisticated active protection systems.
Using other types of passive armor would weigh up to 10 times more to get the same level of protection.
Conventional passive armor is out of the question if the Army wants to keep the weight of the vehicles at less than 20 tons.
Reactive armor would be far superior to spaced armor, as would passive armor like that developed for the M8 armored gun system.
Another issue is that trucks generally require small arms protection, in which case, said Aviram, "you are better off with passive armor.
In contrast to passive armor, which is designed to withstand a hit from a round, active protection systems are designed to sense the round and deflect or destroy it prior to penetration (using, for example, ejecting armor plates to alter trajectory) or defeat it in some manner after penetration.
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