HMS Immortalité (1887)

HMS Immortalité was one of seven Orlando-class cruiser armoured cruisers built for the Royal Navy in the mid-1880s. She was sold for scrap on 11 January 1907.

Design and description
Immortalité had a length between perpendiculars of 300 ft, a beam of 56 ft and a draught of 24 ft. Designed to displace 5040 LT, all of the Orlando-class ships proved to be overweight and displaced approximately 5535 LT. The ship was powered by a pair of three-cylinder triple-expansion steam engines, each driving one shaft, which were designed to produce a total of 8500 ihp and a maximum speed of 18 kn using steam provided by four boilers with forced draught. The ship carried a maximum of 900 LT of coal which was designed to give her a range of 8000 nmi at a speed of 10 kn. The ship's complement was 484 officers and ratings.

Immortalité's main armament consisted of two breech-loading (BL) 9.2 in Mk V guns, one gun fore and aft of the superstructure on pivot mounts. Her secondary armament was ten BL 6 in guns, five on each broadside. Protection against torpedo boats was provided by six quick-firing (QF) 6-pounder Hotchkiss guns and ten QF 3-pounder Hotchkiss guns, most of which were mounted on the main deck in broadside positions. The ship was also armed with six 18-inch (457 mm) torpedo tubes: four on the broadside above water and one each in the bow and stern below water.

The ship was protected by a waterline compound armour belt 10 in thick. It covered the middle 200 ft of the ship and was 5 ft high. Because the ship was overweight, the top of the armour belt was 2 ft below the waterline when she was fully loaded. The ends of the armour belt were closed off by transverse bulkheads 16 in. The lower deck was 2 - 3 in thick over the full length of the hull. The conning tower was protected by 12 in of armour.

Construction and service
Immortalité, named for the French frigate Immortalité captured in 1798, was laid down on 18 January 1886 by Chatham Royal Dockyard. The ship was launched on 7 June 1887, and completed in July 1889.

In March 1900 she had successful machinery trials in the North Sea, and was transferred to the A division of the Medway Fleet Reserve. She was commissioned at Chatham on 21 May 1901 by Captain Sackville Carden as seagoing tender to the Wildfire, flagship at Sheerness. She took part in the fleet review held at Spithead on 16 August 1902 for the coronation of King Edward VII, and two months later Captain Archibald Peile Stoddart succeeded Carden in command on 16 October 1902.