The Tiger II is a German heavy tank of the Second World War. The final official German designation was Panzerkampfwagen Tiger Ausf. B, often shortened to Tiger B. The ordnance inventory designation was Sd. Kfz. 182 It is also known under the informal name Königstiger (the German name for the Bengal tiger), often translated literally as Royal Tiger, or somewhat incorrectly as King Tiger by Allied soldiers, especially by American forces.
The Tiger II was the successor to the Tiger I, combining the latter's thick armor with the armor sloping used on the Panther medium tank. The tank weighed almost 70 tons and was protected by 100 to 185 mm (3.9 to 7.3 in) of armor to the front. It was armed with the long-barrelled 8.8 cm KwK 43 L/71 anti-tank cannon. The chassis was also the basis for the Jagdtiger turretless tank destroyer.
The tank was produced by Krupp and during its service in the Panzerwaffe, it had two different turrets. The first turret used was referred to as the Henschel version. During testing and while in combat it was discovered there was a shot box located on the turret ring which allowed for easier penetration. The Porsche turret corrected this problem and was used on later versions.