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MIL-DTL-46100E specifies a steel of identical hardness. [3] MIL-DTL-32332 specifies ultra-hard steel, with Brinell hardness in excess of 570. [3] A Chinese publication lists 30MnCrNiMo "685" steel as the material used in Chinese rolled armor plates, with a Brinell Hardness of HBW 444-514 (thin) / 429-495 (thick).
The Bf 109A was the first version of the Bf 109. Armament was initially planned to be just two cowl-mounted 7.92 mm (.312 in) MG 17 machine guns.However, possibly due to the introduction of the Hurricane and Spitfire, each with eight 7.7 mm (.303 in) machine guns, experiments were carried out with a third machine gun firing through the propeller shaft. [2]
Steel collar to protect the neck and cover the neck opening in a complete cuirass. Quite unlike a modern shirt collar in that as well as covering the front and back of the neck it also covers part of the clavicles and sternum and a like area on the back. Standard, pixane, or bishop's mantle: A mail or leather collar.
The first prototype of the shield was believed to be created in the Late Neolithic Age. However the oldest surviving shields date to sometime in the Bronze Age. [3] The oldest form of shield was a protection device designed to block attacks by hand weapons, such as swords, axes and maces, or ranged weapons like sling-stones and arrows.
In some role-playing games, armor class (abbreviated AC; also known as defense) is a derived statistic that indicates how difficult it is to land a successful blow on a character with an attack; it can also indicate damage reduction to a character's health. AC is typically a representation of a character's physical defenses such as their ...
Non-explosive reactive armour (NxRA), also known as non-energetic reactive armor (NERA), is a type of vehicle armor used by modern main battle tanks and heavy infantry fighting vehicles. NERA advantages over explosive reactive armor (ERA) are its inexpensiveness, multi-hit capability, [ 1 ] and ease of integration onto armored vehicles due to ...
Rondel, 1540. Two rondels covering the vulnerable underarm section of a suit of armour. A rondel (/ ˈ r ɒ n d əl /) is a circular piece of metal used for protection, as part of a harness of plate armour, or attached to a helmet, breastplate, couter, or on a gauntlet.
Bascinet without accessories. The bascinet – also bassinet, basinet, or bazineto – was a Medieval European open-faced combat helmet.It evolved from a type of iron or steel skullcap, but had a more pointed apex to the skull, and it extended downwards at the rear and sides to afford protection for the neck.