HMS Trusty was an Admiralty S-class destroyer constructed for the Royal Navy, representing the third vessel to bear this name. She was built by J. Samuel White at East Cowes on the Isle of Wight, with her keel laid down on 11 April 1918 and launched on 6 November 1918, shortly before the end of World War I. The vessel measured an overall length of 276 feet (84 meters) and a length between perpendiculars of 265 feet (81 meters). Her beam was 26 feet 8 inches (8.13 meters), and she had a draught of 9 feet 10 inches (3 meters). Displacing approximately 1,075 long tons (1,092 tonnes) normally and up to 1,220 long tons (1,240 tonnes) at deep load, Trusty was powered by three White-Forster boilers feeding two Brown-Curtis geared steam turbines rated at 27,000 shaft horsepower, allowing her to reach speeds of 36 knots (67 km/h). She carried 301 long tons (306 tonnes) of fuel oil, giving her a range of 2,750 nautical miles (5,090 km) at 15 knots. Her armament included three QF 4-inch (102 mm) Mk IV guns positioned along the centerline—one on the forecastle, one amidships, and one aft—along with a single 40 mm (1.6-inch) 2-pounder pom-pom anti-aircraft gun. She was equipped with four 21-inch (533 mm) torpedo tubes in two twin rotating mounts aft, though she was originally designed to carry additional torpedo tubes which were removed to improve seaworthiness and accommodate heavier torpedoes. The ship's complement was around 90 officers and ratings. Trusty joined the Fourth Destroyer Flotilla of the Home Fleet in 1919 but was transferred to the Reserve Fleet in August 1920. By the mid-1930s, she was in deteriorating condition and considered unfit for active service. Consequently, she was sold on 25 September 1936 to Thos. W. Ward of Sheffield as part of a deal involving the liner Majestic, and she was subsequently broken up at Inverkeithing. Her brief service life and early decommissioning reflect the rapid postwar naval downsizing and the shifting naval priorities of the period.

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