Erebus: protection and interwar gunnery work

During the First World War, Erebus bombarded Ostend and Zeebrugge and was damaged by a German remotely controlled FL boat, but her exceptionally wide torpedo bulges kept the explosive effect away from the main hull. The protection scheme also included four-inch belts and bulkheads, an eight-inch barbette, and thirteen inches of turret armour. The roughly nine-foot-wide bulges help explain why a monitor could absorb more than one torpedo-sized hit. Between the wars Erebus supported the White Russian campaign, participated in gunnery trials against the former German battleship Baden, and served as a gunnery training ship.