Russian KV-3 Heavy Tank
The KV-3 (Object 223) was an experimental Soviet heavy tank developed in 1941, based on the KV-220. It was designed to improve armor protection and firepower to counter new threats, including German tanks and anti-tank guns.
The KV-3 tank was armed with a 107 mm ZiS-6 gun and was intended to have 115–120 mm of armor. However, the project was abandoned due to the outbreak of war and the priority of serial production. The only prototype built was the KV-3 (Object 223), which was never accepted into series production but was used in combat.
