HMS Hermione was a Dido-class light cruiser of the Royal Navy, constructed by Alexander Stephen and Sons in Glasgow. The keel was laid on October 6, 1937, and she was launched on May 18, 1939, entering service on March 25, 1941. Measuring 512 feet (156.06 meters) in overall length and 485 feet (147.83 meters) between perpendiculars, Hermione had a beam of 50 feet 6 inches (15.4 meters) and a mean draught of 16 feet 6 inches (5.0 meters), which increased to 17 feet 3 inches (5.3 meters) at full load. Her displacement was approximately 5,600 long tons (5,700 tonnes) standard, rising to 6,850 long tons (6,960 tonnes) at full load. Hermione's propulsion system comprised four Admiralty 3-drum boilers driving Parsons single-reduction geared turbines, rated at 62,000 shaft horsepower, allowing her to reach speeds of 32.25 knots (59.73 km/h). She carried around 1,100 long tons (1,100 tonnes) of fuel oil, providing a range of 4,240 nautical miles at 16 knots. Her armament featured ten 5.25-inch (133 mm) dual-purpose guns in five twin turrets, suitable for both anti-ship and anti-aircraft roles. She was also equipped with two quadruple 2-pounder (40 mm) pom-poms, two quadruple .50 inch (12.7 mm) machine guns, and two triple 21-inch (533 mm) torpedo tubes. The ship's armor included a 3-inch (76 mm) belt protecting vital machinery and magazines, with deck armor of one inch and 3-inch plates over the magazines. Hermione played a notable role early in the war, participating in the pursuit of the German battleship Bismarck, including accompanying the carrier Victorious during the air attack on May 24, 1941. She was later deployed to the Mediterranean, where she distinguished herself by sinking the Italian submarine Tembien in August 1941. Under Captain G.N. Oliver, Hermione was part of convoys and operations supporting Malta. During Operation Vigorous in June 1942, she engaged in intense combat, expending most of her ammunition defending supply ships. On June 15, 1942, U-205 torpedoed her off the coast of Egypt; the hit caused Hermione to settle by the stern and eventually capsized after 21 minutes, resulting in the loss of 88 crew members, including her captain and her ship's cat. Her sinking marked a significant event in her service history, highlighting her active engagement in critical naval operations during World War II.

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