Comparing: TVP T 50/51 vs. 121

A joint project by Škoda and ČKD. Discussions to determine the tank’s characteristics started on January 14, 1950, but the project was discontinued on March 4, 1950 by the Czechoslovakian Ministry of Defense. No prototypes were manufactured. Existed only in blueprints.

Development began in 1962 on a new medium tank based on the Type 59. The new tank was expected to feature improvements in firepower and armor protection. However, the project was canceled shortly after. Some technical innovations were applied later, in the development of the Type 69 tank. All 121 tank prototypes were destroyed during Chinese nuclear weapon testing.