HMS Collingwood was the lead ship of her class of ironclad battleships built for the Royal Navy in the 1880s. She measured approximately 325 feet in length between perpendiculars, with a beam of 68 feet and a deep load draught of nearly 28 feet. Displacing around 9,500 long tons, she was powered by two 2-cylinder inverted compound-expansion steam engines, generating up to 7,000 indicated horsepower, with forced draught bringing her speed to approximately 16.84 knots during sea trials. Her propulsion system utilized a dozen cylindrical boilers operating at 100 psi, and she carried a maximum of 1,200 long tons of coal, enabling a range of about 8,500 nautical miles at 10 knots. Her main armament comprised four 12-inch (305 mm) breech-loading guns mounted in two twin-gun barbettes—one forward and one aft of the superstructure—with open, exposed mounts that could only be loaded when the guns pointed fore and aft. These guns fired shells weighing 714 pounds, with a maximum range of roughly 9,400 yards, and were capable of penetrating 20.6 inches of wrought iron at 1,000 yards. The secondary armament included six 6-inch (152 mm) guns in single mounts amidships on the upper deck, which were later converted into quick-firing guns. For close defense, she carried a dozen 6-pounder Hotchkiss guns and eight 3-pounder Hotchkiss guns, along with four 14-inch torpedo tubes. Constructed at Pembroke Dockyard and launched in 1882, HMS Collingwood was commissioned in 1887 and primarily served with the Mediterranean Fleet and as a guardship in Ireland. She participated in notable events such as the Golden Jubilee Fleet review in 1887 and the coronation review at Spithead in 1902. Despite some design criticisms—particularly regarding her limited end armor and tendency to roll heavily—her configuration influenced subsequent British battleship designs until the advent of the revolutionary Dreadnought. She was decommissioned and sold for scrap in 1909.

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