The IT-3 medium tank project was created as a result of work on the PT-1 being divided into several projects. The first mention of the "destroyer tank" IT-3 can be dated to March 1933. Initially, the vehicle had a combat weight of around 16 tons, which was later increased because of improved armoring. Like some other vehicles of that time, the IT-3 had a hybrid wheel-caterpillar drive. The stamped turret was another interesting technical decision. However, this project was quickly discontinued in favor of other developments.