In the winter of 1941–1942 the tank development department (WaPrüf 6) issued technical requirements for a new 30-ton tank. The orders for development were placed with MAN and Daimler-Benz. The prototypes were to be ready by May 1942. However, on May 13, 1942, only comparative characteristics of the projects were submitted. The MAN project was preferred, and the Daimler-Benz project was canceled.
Time for the successive autoreloading of each shell into the magazine.
The technical characteristics shown are for the Siege mode
Characteristics are specified for a vehicle with crew members trained to 100%.