 "Rap" was outfitted with launch racks for the new self-propelled Whitehead torpedoes in 1879.The first recorded launch of torpedoes from a torpedo boat—which itself was launched from a torpedo boat tender—in an actual battle was by future Russian Admiral Stepan Makarov on January 16, 1878, who used self-propelled Whitehead's torpedoes against the Ottoman gunboat "İntibâh" during the Russo-Turkish War of 1877–1878.The first sinking of an armoured ship by a torpedo boat using self-propelled torpedoes, the , occurred during the battle of Caldera Bay during 1891 Chilean Civil War.