A project for the new vehicle with sloped armor plates and components of the Pz.Kpfw. III and Pz.Kpfw. IV was approved on January 4, 1944. In March 1944, a contract for three prototypes was signed, but the program was discontinued on July 12. Only a tank destroyer on a similar base saw mass production.
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%.