High Quality Content by WIKIPEDIA articles! HMCS Vimy was one of twelve Battle class naval trawlers used by the Royal Canadian Navy (RCN). Named after the Battle of Vimy Ridge, she was built by Polson Iron Works, in Toronto, Ontario, and was commissioned on 13 November 1917. Decommissioned on 30 November 1918, she was subsequently transferred to the Department of Marine and Fisheries, which converted her into a lightship, like sister ships HMCS Messines, HMCS St. Eloi, and HMCS St. Julien. Eventually designated Lightship No. 5, Vimy was probably broken up in around 1958.