United States floating battery Demologos
Demologos was the first warship to be propelled by a steam engine. She was a wooden floating battery built to defend New York Harbor from the Royal Navy during the War of 1812. The vessel was designed to a unique pattern by Robert Fulton, and was renamed Fulton after his death. Because of the prompt end of the war, Demologos never saw action, and no other ship like her was built.
Demologos, first steam warship
Robert Fulton, designer
Three-view of Demologos as originally portrayed to the US government. The resulting vessel differed greatly from this early proposal.
A floating battery is a kind of armed watercraft, often improvised or experimental, which carries heavy armament but has few other qualities as a warship.
Wash drawing of a floating artillery battery from the 18th century.
French Navy ironclad floating battery Lave, 1854. This ironclad, together with the similar Tonnante and Dévastation, vanquished Russian land batteries at the Battle of Kinburn (1855).
Ironclad floating battery of the Dévastation class, spending the winter of 1855–1856 in the Crimea.
The floating battery Paixhans (1862), designed for war in Cochinchina
