Comparing: 121 vs. FV4202

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.

Experimental tank on the basis of the Centurion medium tank. The vehicle was in development from 1956 through 1959, but never saw mass production. Technical decisions and innovations implemented in the FV4202 became the basis for the FV4201 Chieftain.