normal and at deep load. Twelve Yarrow boilers fed Glasgows Parsons steam turbines, driving four propeller shafts, that were rated at , for a design speed of . The ship reached during her sea trials from . The boilers used both fuel oil and coal, with of coal and tons of oil carried, which gave a range of at . The ship had a crew of 480 officers and ratings. The main armament of the Bristols was two BL 6-inch (152 mm) Mk XI guns that were mounted on the centreline fore and aft of the superstructure and ten BL 4-inch (102 mm) Mk VII guns on single mountings amidships, five on each broadside. All these guns were fitted with gun shields. The ships carried four Vickers 3-pounder (47 mm) saluting guns, while they were also equipped with two submerged 18-inch (450 mm) torpedo tubes, one on each broadside. This armament was considered too light for ships of this size, while the waist guns were subject to immersion in a high sea, making them difficult to work. The Bristols were considered protected cruisers, with an armoured deck providing protection for the ships' vitals. The deck was thick over the magazines and machinery, over the steering gear and elsewhere. The conning tower was protected by 6 inches of armour, with the gun shields having armour, as did the ammunition hoists. As the protective deck was at waterline, the ships were given a large metacentric height so that they would remain stable in the event of flooding above the armoured deck. This, however, resulted in the ships rolling badly making them poor gun platforms. One problem with the armour of the Bristols which was shared with the other Town-class ships was the sizable gap between the bottom of the gun shields and the deck, which allowed shell splinters to pass through the gap, giving large numbers of leg injuries in the ships' gun crews. Construction and career Glasgow, the sixth ship of her name to serve in the Royal Navy, was laid down on 25 March 1909 by Fairfield Shipbuilding and Engineering Company in their Govan shipyard. She was launched on 30 September and completed on 19 September 1910, under the command of Captain Marcus Hill. The ship was initially assigned to the 2nd Battle Squadron of the Home Fleet, but was transferred to the 4th Cruiser Squadron on the south east