The Comet tank or Tank, Cruiser, Comet I (A34) was a British cruiser tank that first saw use near the end of the Second World War, during the Western Allied invasion of Germany. The Comet was developed from the earlier Cromwell tank with a lower profile, partly-cast turret which mounted the new 77 mm HV gun. This was a smaller version of the 17 pdr anti-tank gun firing the same 76.2 mm (3") projectiles, albeit with a lighter charge, and was effective against late-war German tanks, including the Panther and Tiger.