Ed Webster visits the National Archives at Kew and discovers new information about the F.V.4005 Heavy Anti-tank S.P. No.1 ‘Centaur’

This is the Stage One FV4005 with a three-part gun clamp in place; the concentric recuperator bulge is clearly visible, as is the assisted loading device on the right side of the gun

On September 7, 1945, Soviet IS-3 tanks were seen for the first time at the Berlin victory parade. Allied engineers estimated the armour to be between five to six inches thick and well-angled in a pike nose. British 17pdr and American 90mm guns would be unable to perforate this thick plate at range.

Older 75mm guns mounted on Churchills and Cromwells were immediately and hopelessly obsolete.

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