The Chieftain was a British main battle tank produced in the late 1950s as a replacement for the Centurion. The Chieftain was manned by a crew of four, and armed with one 120 mm rifled gun; one 7.62 mm L37A2 coaxial machine-gun and six smoke dischargers. Powered by a Leyland six-cylinder multi-fuel engine the Chieftain had a top speed of 48 kmh and a range of 500 km. The Chieftain was replaced in the British army by the Challenger in the late 1980s. Research Chieftain
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