HMS Hannibal was a 91-gun second-rate ship of the line, part of the Princess Royal class, built for the Royal Navy in the 1850s. Constructed at Woolwich Dockyard, she was laid down in December 1848, following several design reorders, including an initial plan as a 90-gun Albion-class ship, and later a conversion to include steam power. The ship was launched on 31 January 1854 and commissioned on 18 March 1854, completing her sea trials by June of that year. Hannibal measured approximately 217 feet 6 inches (66.3 meters) on her gundeck, with a keel length of 179 feet 7 inches (54.7 meters). Her beam was 58 feet 1 inch (17.7 meters), with a depth of hold of 24 feet 6 inches (7.5 meters), and a deep draught of 26 feet 6 inches (8.08 meters). She displaced around 3,130 tons burthen. The vessel was fitted with a horizontal, geared, two-cylinder single-expansion steam engine, originally from HMS Greenock, rated at 450 nominal horsepower and capable of producing 1,071 indicated horsepower, allowing her to reach a speed of approximately 8.6 knots. Her armament comprised traditional muzzle-loading smoothbore guns: thirty-two 8-inch shell guns on the lower gundeck, thirty-four 32-pounder guns on the upper gundeck, and an additional twenty-four 32-pounders along with a single 68-pounder gun positioned amidships. Her crew numbered around 850 officers and ratings. HMS Hannibal's service included a minor role in the Crimean War, where she initially served as flagship of Commodore Grey, transporting French troops to the Åland Islands. By January 1855, she was the flagship of Rear-Admiral Houston Stewart in the Black Sea under Captain John Charles Dalrymple Hay. Beyond her wartime duties, she was also utilized to transport Giuseppe Garibaldi’s soldiers to Italy, arriving in Naples in July 1860. In November of that year, a smallpox epidemic aboard the ship resulted in at least 90 cases and seven fatalities, with some burials at the English Cemetery in Naples. Hannibal was hulked in 1874 and remained in service until she was broken up in 1904. Her career highlights reflect the transitional period of naval warfare, blending traditional ship-of-the-line design with early steam propulsion, marking her as a significant example of mid-19th-century naval engineering and maritime history.

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