HMS Patriot was a Thornycroft M-class destroyer constructed for the British Royal Navy during World War I. She was laid down at Thornycroft & Company's Southampton shipyard in July 1915, launched on 20 April 1916, and completed by June of the same year. Displacing approximately 985 long tons (1,001 tonnes), Patriot measured 274 feet (84 meters) in overall length, with a beam of 27 feet 3 inches (8.31 meters) and a draught of 10 feet 6 inches (3.20 meters). Her propulsion system consisted of three shafts driven by Brown-Curtis turbines powered by three Yarrow boilers, producing 26,500 shaft horsepower, which allowed her to reach a maximum speed of 35 knots (about 65 km/h). Armament included three single-mounted QF 4-inch (102 mm)/45 calibre Mark IV guns, notably with the No.2 gun mounted on a bandstand, and a single QF 2-pounder "pom-pom" Mk.II for secondary anti-aircraft defense. She was also equipped with four 21-inch (533 mm) torpedo tubes arranged in two twin mounts. As a Thornycroft "special," Patriot was distinguished by her flat-sided funnels and higher freeboard compared to the standard Admiralty design. Patriot served actively with the Grand Fleet's 14th Destroyer Flotilla during WWI, conducting patrols and anti-submarine operations in the North Sea. Notable engagements included operations against German U-boats, where she participated in a patrol that resulted in the probable sinking of U-69 on 12 July 1917. She was also involved in large-scale fleet actions, including efforts to intercept German cruisers Bremse and Brummer. After the war, she remained with the fleet until the Royal Navy transitioned to the Atlantic Fleet, and she was eventually placed in reserve at Portsmouth in 1919. In 1920, Patriot was transferred to the Royal Canadian Navy, where she was recommissioned as HMCS Patriot. Based out of Halifax, she primarily served as a patrol and training vessel along Canada's Atlantic coast, participating in exercises and supporting diplomatic missions, including towing Alexander Graham Bell's hydrofoil HD-4 in 1921. Her career in Canadian service lasted until 1927, when she was decommissioned and sold for scrap in 1929. Patriot's service history highlights her role as a versatile wartime destroyer and her later contribution to the early development of Canada's naval forces.

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