In the late 1950s, the FV4201 began to take shape: the first tank to be called a main battle tank. The future Chieftain was supposed to combine the characteristics of a heavy and a medium tank. The U.S. and Germany had a similar joint program—the MBT70. It was the latter that drew the attention of Japanese designers who were in close contact with the American side. What interested them most about that project was the hydropneumatic suspension, as their local theaters of operations made it a very desirable addition. Their tank was supposed to combine a low profile with a powerful gun and good armor. However, the Japan Self-Defense Forces command prioritized tanks with an average weight of 35-40 tons. The vehicle turned out to be too expensive, and no prototypes were built.
Commander
Loader
SHB-1
Mitsubishi 12ZM
JAN/GRC-4Z
SHB-1
105 mm M68 L7
SHB-1-2
Mitsubishi 12ZT
SHB-1-2
120 mm Gun Type 60
Standard value is for the heated barrel, improved value is for the cool barrel.
Characteristics are specified for vehicles with crews trained to 100%.