sentences:  Ten of the guns were mounted in a central battery on the main deck, where they were criticized for taking up too much deck space; the other four were in casemates abreast the fore- and mainmasts on the upper deck.A more serious problem was that they were mounted low in the ship—only about above water at deep load—and were unusable at high speed or in heavy weather as they dipped their muzzles in the sea when rolling more than 14°.The two types of guns differed slightly in construction, but had identical performance.