HMS Cornwall (pennant number 56) was a County-class heavy cruiser of the Kent sub-class built for the Royal Navy during the mid-1920s. Displacing approximately 9,850 long tons at standard load and up to 13,520 long tons at deep load, she measured 630 feet in length, with a beam of 68 feet 5 inches and a draught of 20 feet 6 inches. Powered by Parsons geared steam turbines driving four shafts, she produced 80,000 shaft horsepower, enabling a maximum speed of 31.5 knots. Her steam was generated by eight Admiralty 3-drum boilers, and she carried a fuel oil capacity of 3,425 long tons, which granted her a range of 13,300 nautical miles at 12 knots. The ship's complement comprised 784 officers and men. Her armament included eight 8-inch (203 mm) guns in four twin turrets for primary firepower, complemented by four single 4-inch (102 mm) AA guns, and four 2-pounder light AA guns ("pom-poms"). She was also equipped with two quadruple 21-inch torpedo tubes for offensive capabilities. Cornwall's armor was relatively light, with only about an inch protecting vital machinery, while her magazines benefited from 2 to 4.375 inches of armor. Although space was reserved for an aircraft catapult and seaplane, these were only fitted after her initial completion. Laid down at Devonport Dockyard on October 9, 1924, and launched on March 11, 1926, Cornwall was completed in December 1927. She served predominantly on the China Station during the interwar years, where she underwent several upgrades, including the addition of a High-Angle Control System, improved anti-aircraft guns, and a hangar for aircraft, along with a new catapult. Notably, in 1936–1937, she received a significant refit with enhanced armor protection, a new power-operated director-control tower, and upgraded armament. During World War II, Cornwall initially operated in the Indian Ocean, hunting German commerce raiders and escorting convoys. She notably sank the German auxiliary cruiser Pinguin in May 1941. After the Pacific War commenced in December 1941, she continued convoy escort duties until her sinking on April 5, 1942, during the Indian Ocean Raid by dive bombers launched from Japanese aircraft carriers. Cornwall's service history reflects her role as a formidable cruiser involved in key naval operations across the Asian and Atlantic theaters.

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