Development was started in the summer of 1948. The T-54 tank was used as a basis for this tank destroyer. The vehicle entered service in March 1954. Mass production was launched in 1955, with a total of 100 vehicles manufactured. The principal configuration of the vehicle is similar to the configuration of WWII assault guns.
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%.