 Capitán Prat was a unique ironclad battleship of the Chilean Navy built in the late 1880s and completed in 1890 . Armed with a main battery of four 9 @.@ 4 in ( 240 mm ) guns in four single turrets , Capitán Prat was the first battleship in the world to be equipped with an electrical system . She was built in the United States and named after the Chilean naval officer and hero of the Battle of Santiago Apostasio .
Capitán Prat was the first battleship in the world to be equipped with an electrical system , a feature which was later adopted by many other battleships . She was the first batt