HMS Ocean was the last of the Royal Navy’s Prince Consort-class ironclads, constructed in the mid-1860s. Originally laid down as a 91-gun second-rate ship of the line, she was converted during construction into an armoured frigate, reflecting the evolving naval technology of the period. She was launched on 19 March 1863 and commissioned in July 1866, with her completion finalized on 6 September 1866. Physically, HMS Ocean measured 273 feet 1 inch (83.2 meters) in length between perpendiculars, with a beam of 58 feet 5 inches (17.8 meters). Her draft was 24 feet 5 inches (7.4 meters) forward and 27 feet 6 inches (8.4 meters) aft, displacing approximately 6,832 long tons (6,942 tonnes). Her hull was sheathed with Muntz metal to reduce biofouling, and she had a metacentric height of 6.01 feet (1.83 meters), which contributed to her rolling instability. Powered by a horizontal 2-cylinder steam engine delivering 4,244 indicated horsepower, she could reach a maximum speed of 12.9 knots. She was also barque-rigged with three masts and a sail area of 25,000 square feet, capable of sailing at 11.5 knots under sail alone when the propeller was disconnected. Her armament initially consisted of twenty-four 7-inch rifled muzzle-loading guns, with some replaced by 8-inch guns in 1867, capable of penetrating significant armor. Her protective armor comprised a wrought iron belt tapering from 4.5 inches amidships to 3 inches at the ends, extending 5 feet 6 inches below the waterline. Small conning towers on each side proved ineffective when firing the ship’s guns. The ship’s sides were backed by 29.5 inches of hull. HMS Ocean served primarily on the China Station, acting as flagship for several years, and notably became the only armoured ship to double the Cape of Good Hope under sail alone. Her service included a notable sinking of a Chinese junk at Amoy in 1871. After returning to Britain in 1872, her hull’s deterioration led to her being relegated to reserve, and she was eventually sold for scrap in 1882. Her career highlights the transitional period of naval warfare from wooden ships to ironclads and her extensive service abroad underscore her maritime significance.

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