HMS Undaunted was a notable Arethusa-class light cruiser constructed for the Royal Navy in the 1910s. Measuring 456 feet 6 inches (139.1 meters) in length overall, with a beam of 49 feet 10 inches (15.2 meters) and a deep draught of 15 feet 3 inches (4.6 meters), she displaced approximately 5,185 long tons (5,268 tons) at normal load, increasing to 5,795 long tons (5,888 tons) when fully loaded. Her propulsion system comprised four Brown-Curtis steam turbines, each connected to a propeller shaft, producing a total of 40,000 indicated horsepower (30,000 kW). These turbines were powered by eight Yarrow boilers, enabling HMS Undaunted to reach a top speed of roughly 28.5 knots (52.8 km/h; 32.8 mph). She carried a fuel oil capacity of 840 long tons (853 tons), which provided her with an operational range of about 3,200 nautical miles (5,900 km; 3,700 miles) at a cruising speed of 16 knots. Her armament was designed for fleet leadership and destroyer escort roles. She was equipped with two BL 6-inch (152 mm) Mk XII guns positioned on the centreline fore and aft of the superstructure, supported by six QF 4-inch (102 mm) Mk V guns mounted along her waist. Additionally, she carried a single QF 3-pounder (47 mm) anti-aircraft gun and was fitted with four 21-inch (533 mm) torpedo tubes arranged in two twin mounts. Launched on 28 April 1914 at Fairfield Shipbuilding and Engineering Company’s yard in Govan, HMS Undaunted actively participated in key naval operations during World War I. Initially leading the 3rd Destroyer Flotilla of the Harwich Force, she played a role in defending the eastern approaches to the English Channel. Her combat record includes participation in the Battle of Heligoland Bight (August 1914), an engagement off Texel with German torpedo boats (October 1914), the Cuxhaven Raid (December 1914), and the Battle of Dogger Bank (January 1915). She sustained damage in collisions with the destroyer Landrail (April 1915) and the cruiser Cleopatra (March 1916), the latter while supporting a raid on a Zeppelin base. After the war, in November 1918, HMS Undaunted was reassigned to the 4th Light Cruiser Squadron of the Grand Fleet. She survived the conflict and was eventually sold for scrap to Cashmore of Newport on 9 April 1923. Her service underscores her importance in early 20th-century naval warfare, particularly in fleet-leading and destroyer escort roles.

This description has been generated using GPT-4.1-NANO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.