Comparing: KV-5 vs. WZ-111

Development began in June 1941 at the Leningrad Kirov Plant and was completed by August, but plans were interrupted due to the complicated situation on the front. The KV-5 was to utilize some components of the KV-1. A new turret was designed, incorporating the 107-mm ZIS-6 gun. Two roadwheels and a single support roller were to be added on each side. A new 1,200 h.p. diesel engine was being developed for the vehicle, however it was not completed in time and was replaced with two V-2K engines.

Development of the heavy tank prototype on the basis of the Soviet IS-2 and IS-3 began in the early 1960s under the influence of the T-10. The vehicle was supposed to modernize the armored forces of the PLA. The trials revealed multiple faults, and the development of the vehicle was discontinued in 1964.