 The boilers used both fuel oil and coal, with of coal and tons of oil carried, which gave a range of at .The "Weymouth"s exchanged the ten guns of the "Bristol" sub-class for six additional BL 6-inch (152 mm) Mk XI guns.Two of these guns were mounted on the centreline fore and aft of the superstructure and two more were mounted on the forecastle deck abreast the bridge.