HMS Agincourt was a armoured frigate built for the Royal Navy during the 1860s. She spent most of her career as the flagship of the Channel Squadron's second-in-command. During the Russo-Turkish War of 1877–1878, she was one of the ironclads sent to Constantinople to forestall a Russian occupation of the Ottoman capital. Agincourt participated in Queen Victoria's Golden Jubilee Fleet Review in 1887. The ship was placed in reserve two years later and served as a training ship from 1893 to 1909. That year she was converted into a coal hulk and renamed as C.109. Agincourt served at Sheerness until sold for scrap in 1960. Design and description The three Minotaur-class armoured frigates were essentially enlarged versions of the ironclad with heavier armament, armour, and more powerful engines. They retained the broadside ironclad layout of their predecessor, but their sides were fully armoured to protect the 50 guns they were designed to carry. Their plough-shaped ram was also more prominent than that of Achilles. The ships were long between perpendiculars and long overall. They had a beam of and a draft of . The Minotaur-class ships displaced . Their hull was subdivided by 15 watertight transverse bulkheads and had a double bottom underneath the engine and boiler rooms. Agincourt was considered "an excellent sea-boat and a steady gun platform, but unhandy under steam and practically unmanageable under sail" as built. The ship's steadiness was partially a result of her metacentric height of . Propulsion Agincourt had one 2-cylinder horizontal return connecting rod-steam engine, made by Maudslay, driving a single propeller using steam provided by 10 rectangular fire-tube boilers. It produced a total of during the ship's sea trials on 12 December 1865 and Agincourt had a maximum speed of . The ship carried of coal, enough to steam at . Agincourt had five masts and a sail area of . Agincourt only made under sail mainly because the ship's propeller could only be disconnected and not hoisted up into the stern of the ship to reduce drag. Both funnels were semi-retractable to reduce wind resistance while under sail. Admiral George A. Ballard described Agincourt and her sisters as "the dullest performers under canvas of the whole masted fleet of their day, and no ships ever carried so much dress to so little purpose." In 1893–1894, after her withdrawal from active service, Agincourt had two masts removed and was re-rigged as