Comparing: KV-1S vs. M6 vs. ARL 44

A further modification of the KV-1 heavy tank series developed in the summer of 1942. It passed into Red Army service on August 20, 1942. Compared to its predecessors, KV-1S had several design features which allowed for the tank’s weight to be reduced to 42.3 tons. Also, the KV-1S had increased top speed, maneuverability, and durability. However, the 76-mm ZIS-5 gun remained. This, coupled with reduced and inefficient armoring, made the new vehicle basically equal to the Т-34 in terms of battle performance. A total of 1,083 vehicles of this modification were manufactured. This tank was widely used on all fronts of the Great Patriotic War.

Developed from 1940 through 1942, with a total of 40 vehicles manufactured from November 1942 through February 1944. It never saw action.

Development of the vehicle started while France was still occupied by the German forces. It was an attempt to use the obsolete B1 Bis chassis and fit it with a modern, more powerful gun. The project was finished by the Atelier de Construction de Rueil Design Bureau. A total of 60 vehicles were manufactured. However, the tank was considered unsuccessful compared to similar foreign vehicles.