HMS Hannibal was a Majestic-class pre-dreadnought battleship constructed for the Royal Navy. Laid down at Pembroke Dock on 1 May 1894 and launched on 28 April 1896, she was commissioned into service in April 1898. The vessel measured approximately 421 feet (128 meters) in length overall, with a beam of 75 feet (23 meters) and a draft of 27 feet (8.2 meters). At full load, she displaced around 16,060 long tons (16,320 metric tons). Her propulsion system comprised two 3-cylinder triple-expansion steam engines powered by eight coal-fired Scotch marine boilers, which were later converted to oil-fired boilers around 1907–08. These engines produced a top speed of 16 knots (30 km/h; 18 mph), and the ship carried a crew of 672 officers and ratings. HMS Hannibal's armament included a main battery of four 12-inch (305 mm) BL Mk VIII guns housed in twin-gun turrets on pear-shaped barbettes—one forward and one aft—along with a secondary battery of twelve 6-inch (152 mm) guns in casemates amidships. She was also equipped with sixteen 12-pounder guns, twelve 2-pounder guns, and five 18-inch (457 mm) torpedo tubes (four submerged and one deck-mounted). Her armor featured a belt of Harvey steel 9 inches (229 mm) thick, providing protection comparable to heavier armor but with less weight, and barbettes protected by 14 inches (356 mm) of steel. The deck armor varied from 2.5 to 4.5 inches (64 to 114 mm). HMS Hannibal’s service history included participation in the Channel Fleet, later renamed the Atlantic Fleet, and she was present during significant events such as Queen Victoria’s funeral procession in 1901 and King Edward VII’s Coronation Fleet Review in 1902. She underwent a refit in 1906, converting her from coal to oil fuel and installing improved fire control. During her career, she experienced incidents including a collision with her sister ship HMS Prince George in 1903 and damage from a reef in 1909. During World War I, she was mobilized as part of the 9th Battle Squadron and served as a guard ship at Scapa Flow until early 1915. Subsequently, her main guns were removed for use on monitors, and she was converted into a troopship for the Dardanelles campaign. Later, she served as a depot ship at Alexandria, supporting operations in Egypt and the Red Sea until June 1919. Disposed of in 1920, HMS Hannibal was sold for scrapping and dismantled in Italy, marking the end of her maritime service.

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