A self-propelled gun developed on the basis of the WZ-111 heavy tank in the first half of the 1960s. The development of the WZ-111 was discontinued, and all activity on the vehicle was canceled. No prototypes were built.
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%.