Defence against torpedo boats was provided by eight QF 6-pounder guns, although the exact type of gun is not known. Four of these were mounted on the main deck in casemates on the sides of the hull and suffered from the same problems as the six-inch guns. "Hood" also mounted a dozen QF 3-pounder Hotchkiss guns mounted in the superstructure and fighting tops. Like her sisters, the ship was fitted with seven 18-inch torpedo tubes. Two of these were mounted in the bow below the waterline, four were placed in the sides of the hull, two on each broadside, and one in the stern. These last five tubes were all above water. She also was fitted with a plough-shaped underwater ram.