HMCS Vimy was a Battle-class naval trawler constructed for the Royal Canadian Navy during World War I. Built by Polson Iron Works in Toronto, Ontario, the vessel was launched on 16 June 1917 and commissioned later that year on 13 November. The ship was part of a fleet of twelve trawlers designed to bolster Canada's anti-submarine efforts off the Atlantic coast, responding to the growing U-boat threat. Modeled on British North Sea trawlers, Vimy displaced approximately 320 long tons, measuring 130 feet in length overall, with a beam of 23 feet 5 inches and a draught of 13 feet 5 inches. Powered by a steam triple expansion engine generating 480 indicated horsepower, Vimy could reach a maximum speed of 10 knots. Armament included a single QF 12-pounder 12 cwt naval gun mounted forward, considered effective against surfaced U-boats, along with a small complement of depth charges for anti-submarine warfare. The vessel's construction was delayed by the U.S. entry into the war, which caused labor and material shortages; nonetheless, Vimy was completed in late 1917 for use during the 1918 shipping season. Based out of Sydney, Nova Scotia, she participated in patrol and escort duties along Canada's Atlantic coast, contributing to wartime maritime security. Following the end of World War I, Vimy was paid off on 30 November 1918. In 1922, she was transferred to the Department of Marine and Fisheries and converted into a lightvessel, designated Lightship No. 5. During this conversion, an electric light was installed at the foremast head, and a foghorn was mounted atop a lattice tower, transforming her into a navigational aid. The vessel remained in Canadian government service until possibly being broken up for scrap in 1958. Vimy's service exemplifies Canada's efforts in maritime defense during wartime and its post-war adaptation of naval vessels for peacetime purposes.

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