HMCS Constance was a vessel originally constructed as a fisheries cruiser and later served as a minesweeper for the Royal Canadian Navy during World War I. Built in 1891 by Polson Iron Works in Owen Sound, Ontario, she measured 115 feet in length with a beam of 19 feet 6 inches and a draught of 11 feet 2 inches. The ship had a gross register tonnage of 185 tons, a figure that remained unchanged during her wartime service. Constance was powered by a coal-fired compound steam engine, driving a single screw propeller, which enabled a maximum speed of approximately 10 knots. The vessel was initially ordered by Charles Tupper, then Minister of Marine and Fisheries, and was intended to serve as a fisheries patrol vessel. She was launched in 1891 and was constructed at the request of the Canadian government following tensions with the United States over fisheries. Although initially intended for fisheries patrol, she was transferred shortly after launch to the Customs Preventive Service, where she was used to patrol the Saint Lawrence River and the upper Gulf of St. Lawrence. Her primary role was to intercept suspicious vessels, investigate illicit cargo, and escort vessels found guilty of violations, with proceeds from interceptions shared among the crew. Constance was fitted with a ram bow giving her the appearance of a gunboat, and was armed with three machine guns. She had a crew of 23 men. In 1908, she was reassigned to patrol Canada’s East Coast, and by 1912, she and her sister ships were outfitted for minesweeping operations. With the onset of World War I in 1914, Constance was commissioned into the Royal Canadian Navy and served throughout the war primarily in patrol and examination roles along the East Coast. After the war, she was paid off in 1919 and sold in 1924. Notably, she was chartered again in 1926 to assist Customs Preventive Service operations at Cape Breton during the Prohibition era in the United States, targeting rum smuggling. Her service concluded in 1929, marking her as a vessel with a notable career spanning patrol, customs enforcement, and minesweeping roles, reflecting her maritime versatility and importance to Canadian coastal security during the early 20th century.

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