The Threat - what was Chieftain up against?
Initial design studies for Medium Gun Tank No 2, which became Chieftain, in the mid fifties were a response to NATO exploiting T-55, which was thought to over-match Centurion. In the course of its long service, Chieftain faced T-62, T-64, T-72 (in East German hands) and lastly T-80, which gives a measure of how long lasting it was and how successful its development was.
In the mid-eighties, the Soviet Union introduced a major advance in tank firepower in the form of T-64B.
It represented a very significant increase in the threat, to which Chieftain responded with STILLBREW armour, the APFSDS fin round and latterly improved night and poor light sighting with TOGS.
The significance of T-64B wasn't immediately apparent - it looked like any other bog-standard T-64:
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- T-64
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- T-64B
It started to come into service in GSFG (the Soviet Army in East Germany) in the mid eighties and Allied observers were quick to spot the crews working up on the ranges:
A series of observations revealed a previously unknown box on the turret top and a much larger gunner's sight optic:
The intelligence analysis revealed that T-64B was equipped with the 9M112 Radio Frequency Guided HEAT round, with a new day/night sight. The mysterious new box was the RF guidance emitter.
These required a new turret casting:
The Russians knew the new system as Kobra and in the West it became AT-8 Songster. With the T-64B's laser rangefinder, ballistic computer and met sensors, it matched the capability the Chieftain's TOTEM POLE programme had realised. It overmatched Chieftain's 120mm gun for range, the 9M112 manual claiming a maximum battle range of 4000m compared with Chieftain at 2000m at most. STILLBREW became an urgent necessity.
The significant handicaps of all T-64s, poor ergonomics, three man crew and autoloader all remained.
So, if Armortek were ever to release a modern, Russian tank, the most appropriate wouldn't be T-72, it would be T-64B. I doubt it will happen any time soon.