A proposed lightweight version of the T-54 medium tank. Development was started in May 1949. Compared to its series-produced predecessor, the tank had better performance and maneuverability. Therefore, the tank was planned to replace the T-54 in accomplishing complicated missions. However, the T-54 tank of 1949 was improved and mass produced, and the lightweight version was canceled while still in the design phase.
Time for the successive autoreloading of each shell into the magazine.
Characteristics are specified for Siege mode.
Characteristics are specified for Rapid mode.
Reload time of the first and second guns on double-barreled vehicles.
Characteristics are specified for vehicles with crews trained to 100%.