See main article: Topaze-class cruiser. Topaze was the first of two protected cruisers, or Gem-class third-class cruisers ordered by the British Admiralty under the 1902/1903 Programme. The design followed the same philosophy as the preceding, but had more armour, mounted more guns, was faster and had improved seakeeping. The cruiser had an overall length of 373feet and a length of 360feet between perpendiculars, with a beam of 40feet and a draught of 14feet. Displacement was 30000NaN0 at deep load.
Power was provided by ten Normand boilers venting through three funnels which fed two 4-cylinder triple-expansion steam engines rated at 98000shp and drove two propeller shafts to provide a design speed of . On trials, the engines peaked at more than 10000shp to give a maximum speed exceeding . A total of 450LT of coal was carried to give a design range of 7000nmi at and at . The ship had a complement of 296 officers and ratings.
Armament consisted of twelve QF Mark III guns, one mounted fore and another aft, the remainder lining the sides to give a broadside of seven guns. Each mount had a gun shield with of armour. A secondary armament of eight QF 3-pdr (47 mm) guns and four Vickers Maxim guns was carried for protection against torpedo boats and other light craft. The original design had no torpedo tubes. However, two tubes for 180NaN0 torpedoes were fitted before the ship was launched. Deck armour varied from to . Fire control was undertaken from conning towers which were fitted with of armour.
Laid down by Laird Brothers at Birkenhead on 14 August 1902 and launched on 23 July the following year, Topaze was completed in November 1904. The vessel was the fourth of the name in Royal Navy service. The first had been a frigate of the French Navy named after the topaz gemstone that had been captured in 1793 and the French spelling was continued in subsequent ships. This incarnation was commissioned on 6 December into the Cruiser Squadron of the Channel Fleet.[1] On 4 December 1906, the cruiser was given a new commission and attached to support the battleships of the Channel Fleet Battle Squadron.[2] On 10 August 1909, the cruiser joined the newly formed Fourth Destroyer Flotilla based at Portsmouth as the flotilla leader.[3] On 1 April 1913, the cruiser was recommissioned at Chatham and reassigned back to Portsmouth as part of the Sixth Battle Squadron.[4] [5]
At the start of the First World War, Topaze was serving with the Fifth Battle Squadron under the battleship .[6] The squadron was allocated to the Channel Fleet. The cruiser remained with the squadron as it declined in size, warships being transferred to other postings. On 2 November, the ship joined the remaining battleships as part of the Channel Fleet based at Portland. On 28 December, the cruiser was escorting the battleship out on gunnery exercises. The small flotilla had no destroyer escort and was therefore vulnerable to submarine attack. The German submarine took advantage of this vulnerability and torpedoed the battleship on 1 January 1915. Topaze saw the larger vessel list to starboard as the sailors starting to evacuate the stricken ship. Heavy sea hindered the rescue, but 43 were saved by the cruiser before the battleship finally sank.
The escalating warfare in the Mediterranean in 1915 led to the gradual transfer of the Channel Fleet to the theatre. By 8 April, Topaze was the only vessel remaining, alongside the battleship, in the command. Initially, it was envisaged that the cruiser would join the newly formed Sixth Light Cruiser Squadron, but Topaze proved too slow to keep up with the more modern ships. Instead, the cruiser left Dover to join the Mediterranean Fleet on 23 June. There, British vessels operated with the Regia Marina against the forces of the Austro-Hungarian Navy. On 28 July, the cruiser joined three Italian destroyers in hunting a raiding force at Pelagosa.
The allies then enforced a blockade in the Adriatic Sea from 6 October. The importance of the blockade was such that even when more modern light cruisers arrived, Topaze remained on station. After 27 November the arrangement was systematised so that a typical patrol would involve the cruiser and one or two destroyers spending 30 hours off the coast of Albania. The cruiser was also used on occasion to monitor the line of drifters that the navy had deployed to monitor potential blockade runners. In addition, the cruiser was involved in escorting Italian troops and supplies to serve in the Balkans theatre, including 20,000 soldiers carried to Vlorë. It was during one of these sailings, on 4 December, that the cruiser was attacked by a submarine along with the Italian destroyer . The submarine launched three torpedoes but neither ship was damaged. Such action was rare and the cruiser spent the next year cruising far from the enemy.
On 4 March 1917, Topaze was reposted to the East Indies Station. The cruiser was sent, along with protected cruiser and Exmouth, to perform escort duties in the Indian Ocean in exchange for the Japanese sending the protected cruiser and eight destroyers to the Mediterranean. Topaze was based at Aden. The reinforcements proved invaluable in providing safety to shipping navigating crucial trade routes, from Freemantle to Colombo, the Red Sea and Cape Town, and between Mumbai and the Persian Gulf. The cruiser also supported the South Arabian Campaign, helping with the blockade and participating in the attack on the Ottoman Army on the island of Kamaran. On 10 June, Topaze left Aden to attack the Ottoman forces there. Two days later, the ship was stationed off the port of As-Salif, remaining so close to the coast that the defenders could not get the warship's range and their guns overshot. The cruiser then dispatched a landing party that captured the garrison there. Soon after, the ship returned to the Mediterranean, joining the Egyptian Division of the Mediterranean Fleet based at Alexandria.[7] The need at the time was for escorts to protect convoys as the routes across the Mediterranean grew from seven in November 1917 to nineteen in June 1918.
After the Armistice of 11 November 1918 and the end of the First World War, the Royal Navy no longer needed as many vessels in service. By the middle of the following year,Topaze was the only light cruiser remaining at the Royal Navy base in Egypt.[8] The ship sailed to Portsmouth and was decommissioned on 7 October 1919.[9] On 22 September 1921, the cruiser was sold to G Cohen to be broken up in Germany.
| Pennant Number | Date |
|---|---|
| P29 | 1914 |
| P2A | September 1915 |
| P1C | January 1918 |
. Julian Corbett . Naval Operations: Volume II . History of the Great War . Longmans, Green and Co. . 1921 . London . 492760415.