 Resolution was armed with four breech @-@ loading 13 @.@ 5 @-@ inch guns on two barbettes with armour ranging from 11 to 17 inches in thickness . Resolution also carried ten quick @-@ fire ( QF ) 6 @-@ inch guns , four of which were mounted in casemates on the main deck , plus sixteen QF 6 @-@ pounder Hotchkiss guns and twelve QF 3 @-@ pounder Hotchkiss guns . She was also equipped with seven 18 @-@ inch torpedo tubes , two of which were submerged . Between 1899 and 1902 , the 3 @-@ pounder guns were removed from the upper tops ; the above @-@ water torpedo tubes were removed in 1902 – 05 . The remaining 6 @-@ inch guns on the upper deck were mounted on 5 @-@ inch armoured casemates between 1902 and 1904 . All of the armour was supplied by the builders , Palmers Shipbuilding and Iron Company . The waterline belt was <unk> long by <unk> <unk> deep , and its armour varied in thickness between 14 and 18 inches ; the bulkheads were protected by 14 to 16 inches of armour . The middle deck covering the belt was 3 inches thick and the lower deck forward and aft of the belt was 2 @.@ 5 inches thick , while the upper belt between the middle and main decks was coated in 3 to 4 inches of armour . The casemates for the 6 @-@ inch guns were protected by an equal thickness of armour and the conning tower was protected with 14 inch armour on the forward side , and 3 inches of armour on the aft . The ship 's armoured deck was 2 @.@ 5 to 3 inches thick . 
