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Ballistic shields are similar to body armor plates in their construction, and are typically made out of fibre-reinforced plastic composites derived from ultra-high-molecular-weight polyethylene or aramid. [3] They may, like ceramic armor, incorporate a ceramic layer on their outer surface to enable them to defeat steel-core armor-piercing bullets.
The second type of modern police shield is the bullet-resistant ballistic shield, also called tactical shield. These shields are typically manufactured from advanced synthetics such as Kevlar and are designed to be bulletproof, or at least bullet resistant. Two types of shields are available:
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 armour designed to absorb impact and prevent the penetration of firearm projectiles and explosion fragments to the torso.
Shields vary greatly in size, ranging from large shields that protect the user's entire body to small shields that are mostly for use in hand-to-hand combat. Shields also vary a great deal in thickness; whereas some shields were made of thick wooden planking, to protect soldiers from spears and crossbow bolts, other shields were thinner and ...
The IBA system consists of an Outer Tactical Vest (OTV) and two Small Arms Protective Insert (SAPI) ballistic plates. The OTV features a carrier shell, and three main (flexible) ballistic panel inserts (front left and front right panels, and a rear back panel), [4] which are made with a finely woven Kevlar KM2 fiber. These two parts of the vest ...
Bullet-resistant materials (also called ballistic materials or, equivalently, anti-ballistic materials) are usually rigid, but may be supple. They may be complex, such as Kevlar, UHMWPE, Lexan, or carbon fiber composite materials, or basic and simple, such as steel or titanium. Bullet resistant materials are often used in law enforcement and ...
However, ballistic shields are instead used in situations where heavily armed resistance is expected. [13] Shields are typically either round or rectangular in shape, with lengths between 36–48 inches (91–122 cm) and varying widths. Most riot shields, when utilised properly, will protect the user from the top of the head to the knees. [12]
The materials that make up naval armour have evolved over time, beginning with simply wood, then softer metals like lead or bronze, to harder metals such as iron, and finally steel and composites. Iron armour saw wide use in the 1860s and 1870s, but steel armor began to take over because it was stronger, and thus less could be used.