A further development of the post-war concept for the Czechoslovakian general purpose tank. The project was developed by Škoda in 1947. In 1948, significant changes were introduced to the project. There were plans to mount a 100 mm gun. The project was discontinued after one full-size wooden prototype had been built.
The technical characteristics shown are for the Siege mode
Characteristics are specified for a vehicle with crew members trained to 100%.