RIVADAVIA
The first dreadnought that entered into service in the Argentinean Navy was the Rivadavia. The ship was an answer to Brazil's Naval Program which originally included the acquisition of three dreadnought type vessels.
The Rivadavia was constructed at the U.S yard by Fore River Shipbuilding.
Laid down on May 25, 1910, the ship was comissinoned on January 15, 1914.  Both
Rivadavia and her twin sister Moreno had a full displacement of 31,500 tons and a length of 181 metres. With a Horse Power of 41,000 h.p. the ships reached the maximum speed of 22,3 knots. Six twin turrets with two 12-inchs (305 mm) guns each made up their main armament. The ships also carried twelve 6-inchs guns in single mountings along with others sixteen 4-inchs cannons in sixteen mounts. Finally, two torpedo tubes closed the list of armament added to the ship.
Some 1,050 men and officers made up the ship's crew.
Both ships had the brifer carrier of all Southamericans dreadnoughts. In 1940, the two ships were decommissioned. In 1956, the
Rivadavia were sold for scrap.