HMS Lochinvar was a repeat Laforey-class destroyer built for the Royal Navy during World War I. Laid down by William Beardmore and Company at Dalmuir on the River Clyde on 9 January 1915, she was originally ordered as HMS Malice but was renamed Lochinvar prior to launching on 9 October 1915. The vessel measured 268 feet 8 inches (81.89 meters) in overall length, with a beam of 27 feet 8 inches (8.43 meters) and a draught of 10 feet 6 inches (3.20 meters). Displacing 965 long tons (980 tons) normally and up to 1,150 long tons (1,170 tons) at deep load, the ship was powered by four Yarrow boilers feeding two Parsons steam turbines rated at 24,500 shaft horsepower, enabling a top speed of 29 knots (54 km/h). She carried 268 long tons (272 tons) of oil, providing a range of 3,450 nautical miles at 15 knots. The crew complement consisted of 73 officers and ratings. Armament included three QF 4-inch (102 mm) Mk IV guns positioned along the centerline—one on the forecastle, one aft, and one between the funnels—capable of firing 31-pound shells at high velocity. A single Maxim gun and later a 2-pounder "pom-pom" anti-aircraft gun were added for defense against aircraft. Torpedo armament comprised two twin mounts for 21-inch (533 mm) torpedoes mounted aft, and she had capacity to lay four Vickers Elia Mk.4 mines, though this was never utilized. The ship was equipped with an advanced fire-control system modeled on that of the contemporary M-class destroyers. Lochinvar joined the Ninth Destroyer Flotilla as part of the Harwich Force upon commissioning. Her service included anti-submarine patrols, notably protecting the Dover Barrage, and escort duties, such as supporting the monitors Erebus and Terror during their attacks on Zeebrugge and Ostend in 1917. After the war, she was placed in reserve at Devonport. The ship was considered for sale to Finland but was ultimately sold to Hayes of Porthcawl on 25 November 1921 and broken up, marking the end of her maritime service.

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