


This tank weighs over a 100 tons, roughly 53% of the Maus's weight and only 29 tonnes lighter than the E-100. While the gun may be accurate it is NOT to be used as a sniper. The long 107mm's penetration and damage are comparable to those of German long 105mm from the Tiger II and it is relatively accurate. While it does have 180mm of frontal armor, it is nearly unsloped and it is recommended that the hull of the tank be angled to maximize its effect and make use of the sturdy sides. This ensures that the KV-4 is ill-suited to defend against flankers or circling tanks. It is in many ways the antithesis of the IS-3 - it is slow but heavily armored, just like the KV-5, and has the same pitiful turret traverse speed. However, the work was discontinued due to the outbreak of the Soviet–German war. A prototype was to be produced by November 1941.
