HMCS New Glasgow was a River-class frigate built for the Royal Canadian Navy during World War II, with later service as a Prestonian-class frigate. Laid down on December 2, 1942, by Yarrows Ltd. at Esquimalt, she was launched on June 23, 1943, and commissioned on December 23, 1943, with the pennant K320. Designed by William Reed of Smith's Dock Company, the River-class represented an improvement over previous convoy escort vessels, featuring better accommodations, extended range—up to 7,200 nautical miles at 12 knots—and enhanced anti-submarine weaponry, including a twin 4-inch mount, Hedgehog mortar, depth charges, and side-mounted throwers. She was also equipped with advanced sonar and radar systems, notably the 147B Sword horizontal fan echo sonar, augmenting her ability to detect and track submarines. New Glasgow's initial deployment involved trans-Atlantic convoy escort duties, operating with the Mid-Ocean Escort Force and later with escort groups based out of Derry and other UK ports. She played a notable role in March 1945 when she was involved in the collision with U-1003 off Londonderry Port, which resulted in damage to both vessels. The U-boat was subsequently scuttled, marking the last U-boat loss involving an RCN warship during the war. Following the war, she returned to Canada and was decommissioned in November 1945, entering reserve at Shelburne, Nova Scotia. Between 1953 and 1955, she was converted to a Prestonian-class frigate, featuring a flush deck aft, a larger bridge, and hull strengthening for ice conditions, alongside the installation of two Squid anti-submarine mortars. Recommissioned in 1954, she served with the Second Canadian Escort Squadron on the West Coast, participating in training exercises and Pacific voyages, including visits to Yokohama, Midway, and Hawaii. Her service extended into the 1960s, focusing on training until she was paid off in January 1967 and subsequently broken up in Japan later that year. HMCS New Glasgow's service exemplifies Canada's wartime and Cold War naval evolution, particularly in anti-submarine warfare.

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