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The Char B1 was a French heavy tank manufactured before World War II.. The Char B1 was a specialised break-through vehicle, originally conceived as a self-propelled gun with a 75 mm howitzer in the hull; later a 47 mm gun in a turret was added, to allow it to function also as a Char de Bataille, a "battle tank" fighting enemy armour, equipping the armoured divisions of the Infantry Arm ...
The VPAM scale as of 2009 runs from 1 to 14, with 1-5 being soft armor, and 6-14 being hard armor. [1] Tested armor must withstand three hits, spaced 120 mm (4.7 inches) apart, of the designated test threat with no more than 25 mm (0.98 inches) of back-face deformation in order to pass.
U.S. tank crews often added sand bags in the hull and turrets on Sherman tanks, often in an elaborate cage made of girders. Some Sherman tanks were up-armoured in the field with glacis plates and other armour cut from knocked-out tanks to create Improvised Jumbos, named after the heavily armoured M4A3E2 assault tank.
From the invention of tanks through to the Second World War, tank armour increased in thickness to resist the increasing size and power of anti-tank guns. A tank with sufficient armour could resist the largest anti-tank guns then in use. RHA was commonly used during this period (combined with other plate alloys and cast steel armour), and the ...
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 ...
On paper the IS-3 was an improvement of the IS-2, with Western observers noting the ballistic shape of the turret and the thickness of the frontal armor, in reality the tank was considered by tank commanders as less reliable than its predecessor, with the IS-3 suffering from flexing and cracking of the hull welds, road wheels ball bearings that ...
Armour-piercing fin-stabilized discarding sabot (APFSDS), long dart penetrator, or simply dart ammunition is a type of kinetic energy penetrator ammunition used to attack modern vehicle armour. As an armament for main battle tanks , it succeeds armour-piercing discarding sabot (APDS) ammunition, which is still used in small or medium caliber ...
Standards applicable to British tanks of World War II are as follows: I.T.60: Face-hardened 7 to 12 mm steel plate. I.T.70: Thin homogeneous hard 3 to 30 mm plate. I.T.80: Thick homogeneous-machineable 15 mm and greater plate. I.T.90: Cast armour of all thicknesses. I.T.100: Thin homogeneous-machineable 3 to 14 mm plate.