


Although essentially a diesel it was capable of running on a variety of fuels. It has six vertical cylinders containing twelve opposed pistons, working on the two-stroke principle. The engine was a Leyland design, developed from a pre-war German diesel aircraft engine. The gun uses a self-combusting, bagged charge in place of a brass cartridge case and the tank is powered by a multi-fuel engine. For example, in order to reduce height the driver lies in a reclining position and changes gear with his foot. However it also incorporated a lot of revolutionary design features, some of which did not work as well as expected. Britain’s Main Battle Tank for twenty years, Chieftain was one of the first true Main Battle Tanks, designed to replace both medium and heavy tanks in front line service.
