A project of the self-taught engineer Rozanov. The fighting tank had thick, angled armor plates, its suspension was protected by folding screens, and the main feature was the addition of driven "battle rollers" in the front. They were supposed to protect suspension from mines and shells and, if needed, be raised up. Rozanov's other ideas included armored protection for tank-borne infantry, as well as a shell delivery system involving a chain-driven autoloader. The project was rejected by GABTU, as "battle rollers" could not be used as a mine clearer in reality, and some other suggestions were not developed enough from an engineering standpoint.