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The NIJ's stab resistance standards (Standard–0115.00) define three levels of protection: Level 1 armor is low-level protection suitable for extended wear and is usually covert. This armor protects against stab threats with a strike energy of 24±0.50 J (17.7±0.36 ft·lbf). The overtest condition for this level is 36±0.60 J (26.6±0.44 ft ...
Personnel Armor System for Ground Troops (PASGT, pronounced / ˈ p æ z ɡ ə t / PAZ-gət) is a combat helmet and ballistic vest that was used by the United States military from the early 1980s until the early or mid-2000s, when the helmet and vest were succeeded by the Lightweight Helmet (LWH), Modular Integrated Communications Helmet (MICH), and Interceptor body armor (IBA) respectively.
Iron armor could be carburized or case hardened to give a surface of harder steel. [9] Plate armor became cheaper than mail by the 15th century as it required much less labor and labor had become much more expensive after the Black Death, though it did require larger furnaces to produce larger blooms. Mail continued to be used to protect those ...
The Improved Outer Tactical Vest (IOTV) in MultiCam, as issued to United States Army soldiers. A bulletproof vest, also known as a ballistic vest or bullet-resistant vest, is a type of body armor designed to absorb impact and prevent the penetration of firearm projectiles and explosion fragments to the torso.
Originally the entire IBA system weighed 16.4 pounds (7.4 kg), [5] with the large vest weighing 8.4 pounds (3.8 kg), [6] and two plate inserts weighing 4 pounds (1.8 kg) each. This is much lighter than the previous Ranger Body Armor fielded in Somalia which weighed 25.1 pounds (11.4 kg), as well as the PASGT/ISAPO combination, which weighed ...
An illustration of why sloped armour offers no weight benefit when protecting a certain frontal area. Comparing a vertical slab of armour (left) and a section of 45° sloped armour (right), the horizontal distance through the armour (black arrows) is the same, but the normal thickness of the sloped armour (green arrow) is less.
This meant that plunging fire became a serious concern, and lead to the strengthening of deck armor. Belt armor also became much thicker, surpassing 300 mm (12 in) on the largest battleships. [9] [10] One of the most heavily armored ships of all time, the Yamato-class battleship, had main belt of armour up to 410 millimetres (16.1 in) thick. [11]
However, this composite with a high metal content was primarily intended to increase the protection against KE-penetrators for a given armour weight; its performance against shaped charge attack was mediocre and would have to be improved by means of a laminate spaced armour effect, as researched by the Germans within the joint MBT-70 project.