Brazilian Battleship Minas Geraes - Background

Background

Beginning in the late 1880s, Brazil's navy fell into obsolescence, helped along by an 1889 revolution, which deposed Emperor Dom Pedro II, and naval revolts in 1891 and 1893–94. By the turn of the 20th century it was lagging behind the Chilean and Argentine navies in quality and total tonnage, despite Brazil having nearly three times the population of Argentina and almost five times the population of Chile.

At the turn of the twentieth century, soaring demand for coffee and rubber brought prosperity to the Brazilian economy. The government of Brazil used some of the extra money from this economic growth to finance a large naval building program in 1904, which authorized the construction of a large number of warships, including three battleships. The Minister of the Navy, Admiral Júlio César de Noronha, signed a contract with Armstrong Whitworth for three battleships on 23 July 1906. While the first designs for these ships were derived from the Norwegian coastal defense ship Norge and the British (originally Chilean) Swiftsure class, the contracted ships were to follow Armstrong Whitworth's Design 439 (Design 188 in Vickers' files). They would displace 11,800 long tons (12,000 tonnes), have a speed of 19 knots (22 mph; 35 km/h), and be protected by belt armor of 9 inches (23 cm) and deck armor of 1.5 in (3.8 cm). Each ship would be armed with twelve 10-inch (25 cm) guns mounted in six twin turrets. These turrets would be mounted in a hexagonal configuration, similar to the later German Nassau-class battleships.

Two of these ships were laid down by Armstrong in Elswick (Minas Geraes and Rio de Janeiro), while the other was subcontracted out to Vickers in Barrow (São Paulo). The new dreadnought concept, which premiered in December 1906 upon the completion of the namesake ship in December 1906, rendered the Brazilian ships obsolete. The money authorized for naval expansion was redirected by new Minister of the Navy, Rear Admiral Alexandrino Fario de Alencar, to building two dreadnoughts, with plans for a third dreadnought after the first was completed, two scout cruisers (which became the Bahia class), ten destroyers (the Pará class), and three submarines. The three battleships on which construction had just begun were demolished beginning on 7 January 1907, and the design of the new dreadnoughts was approved by the Brazilians on 20 February 1907.

Even though the greater cost of these ships meant that only two ships could begin immediately, plans went ahead. Minas Geraes, the lead ship, was laid down by Armstrong on 17 April 1907, while São Paulo followed thirteen days later at Vickers. The news shocked Brazil's neighbors, especially Argentina, whose Minister of Foreign Affairs remarked that either Minas Geraes or São Paulo could destroy the entire Argentine and Chilean fleets. In addition, Brazil's order meant that they had laid down a dreadnought before many of the other major maritime powers, such as Germany, France or Russia, and the two ships made Brazil just the third country to have dreadnoughts under construction, behind the United Kingdom and the United States. In particular, the United States now actively attempted to court Brazil as an ally; caught up in the spirit, U.S. naval journals began using terms like "Pan Americanism" and "Hemispheric Cooperation". Newspapers and journals around the world, particularly in Britain and Germany, speculated that Brazil was acting as a proxy for a naval power which would take possession of the two dreadnoughts soon after completion, as they did not believe that a previously insignificant geopolitical power would contract for such powerful armament.