The turrets were mounted on armored barbettes protected with of armor plating. The main battery gun turrets had thick faces on barbettes. The turrets rested in armored barbettes that were thick. The turret barbettes were protected by plating thick. The barbettes that supported the turrets were thick. The barbettes that held the turrets were also strongly protected. The transverse bulkheads were carried through the locations of the former barbettes. The sides of the superstructure between the intermediate barbettes had of armour. The "Orion"s were protected by a waterline armoured belt that extended between the end barbettes. The barbettes for the main guns were thick. The armor of the barbettes was thick. The KC armour of the barbettes ranged in thickness from . The armor protecting their barbettes ranged in thickness from . The armor plates of the gun barbettes was thick. The armor protecting the barbettes was reinforced with plates.