OverviewThe Conway was an attempt to up-gun the Centurion with a 120mm gun mounted in a large turret, this vehicle was needed to counter the IS-3 and other heavily armoured Soviet heavy tanks. The FV4004 was to be an interim design until the Heavy, Conqueror was ready for service. The Conway was based on a Centurion Mk 3 chassis, which was slightly modified.
Somewhat unrelated to the FV4004, the FV4005 was a similar project, but with an 183mm main gun. The stage I version did not have a turret, and the gun was open and had limited traverse.
Somewhat unrelated to the FV4004, the FV4005 was a similar project, but with an 183mm main gun. The stage II version was a fully enclosed turret with 360° traverse, however the turret armour was only 14mm thick.