T95 FV4201 British Chieftain 1/35 resinscales kit The FV4201 Chieftain was the main battle tank of the United Kingdom during the 1960s–1990s Work on the new heavy tank started in the U.K. in 1951. It was planned to provide for the armament interchangeability of the FV4201 Chieftain and the American T95 tanks (including turrets). The project was discontinued because of issues with crew training, as the members of the vehicle crew would have had to operate two different artillery and gun control s