Comparing: T-44-122 vs. Konštrukta T-34/100

Development of the vehicle started in 1943. The prototype was built by the end of the year and underwent trials in January 1944. In February 1944, the tank was re-equipped with a 122-mm gun and sent again for trials. Compared to the production vehicle, the 1943 prototype featured a different hull shape, turret, engine, and armor layout.

Development project of the Soviet T-34-85 tank, proposed in April 1954. The Czechoslovakian variant of the vehicle was to receive a 100 mm gun and an enlarged turret. Production was planned to start in 1955; however, the work never started.