Developed on the basis of the obsolete R35 and S35 vehicles. The simple design allowed the open cabin with a British 17-pounder gun to be mounted on the chassis. However, the project was discontinued during the design phase due to a shortage and obsolescence of pre-war chassis, as well as an ineffective and unconventional gun.
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%.