[2] The turbines developed a total of 24,500 shaft horsepower (18,300 kW) and gave a maximum speed of 29 knots (54 km/h; 33 mph).

The ships carried a maximum of 280 long tons (280 t) of fuel oil that gave them a range of 1,750 nautical miles (3,240 km; 2,010 mi) at 15 knots (28 km/h; 17 mph).

The ships were also fitted with two above-water twin mounts for 21-inch (533 mm) torpedoes.

[3] The ship was laid down as Orlando at William Denny and Brothers' Dumbarton shipyard on 16 September 1912.

[5] On the outbreak of the First World War this Flotilla became part of the Harwich Force, under the overall command of Commodore Reginald Tyrwhitt,[6] which operated in the southern North Sea and could reinforce the Grand Fleet or forces in the English Channel as required.