21. The shell devastated a messdeck and dented the armoured deck by a depth of, but caused no casualties. 22. Two 12-inch shells pierced her armoured deck and exploded in an ammunition room at 10 : 35. 23. The funnel uptakes were protected by of armour for the height of one deck above the upper armoured deck . 24. The armoured deck 's rear extension was long and was 5 inches thick until the last when it thinned to. 25. The armoured deck matched the length of the waterline belt and sloped down to meet the upper edge of the belt. 26. It had a communications tube that extended down to the upper armoured deck that was protected by 100-millimetre armour. 27. "Rainbow " s main armament was two single-mounted deck where flat and armoured deck where sloped. 28. By the end of the 1870s ships could be found with full-length armoured decks and little or no side armour. 29. Two 12-inch shells pierced the German ship's armoured deck and exploded in an ammunition room four minutes later. 30. The " Bristol " s were protected cruisers, with an armoured deck providing protection for the ships'vitals.