French ironclad Amiral Duperré

Amiral Duperré was an ironclad barbette ship built for the French Navy in the 1870s and 1880s; she was the first vessel of that type built by France. She carried her main battery of four 34 cm (13.4 in) guns individually in open barbette mountings, which offered increased fields of fire compared to earlier central battery ships, though they were less well protected. Amiral Duperré was ordered as part of a French naval construction program aimed at countering the growth of the Italian fleet, which had begun work on the very large ironclads of the Duilio and Italia classes in the early 1870s. The Italian vessels, armed with 45 cm (17.7 in) guns, prompted public outcry in France that pressured the navy to develop larger guns for its own ships. Amiral Duperré's design served as the basis for several follow-on classes, including the Bayard and Amiral Baudin classes.

The ship served with the Mediterranean Squadron for most of her active career. In the 1880s and 1890s, the ship took part in numerous training exercises. She suffered an accidental explosion in one of her main guns, though reports of the timing and casualties vary. Amiral Duperré was reduced to the Reserve Division in 1895, serving as its flagship for the next three years. The ship continued to regularly participate in training maneuvers with the rest of the squadron. By the late 1890s, more modern pre-dreadnought battleships began to enter service, and in 1898, she was transferred to the Northern Squadron, based in the English Channel. In 1901, the ship was withdrawn from service to be modernized as part of a program to upgrade the ironclads still in service, though by the time work was completed after 1905, Amiral Duperré saw no further active duty. Instead, she was struck from the naval register in 1909 and subsequently broken up.