Class three battleships of the Dreadnought type designed according to specification tests for the house Vickers in 1907 (the third was not ordered). These ships have made Brazil one of the naval powers of the secondary period. The battleship remained in service until the 1950s, engaging in patrols in the South Atlantic in World War I (a bid to bring the vessels to the British fleet was not accepted). In the interwar Mine was modernized and both served in WWII as floating batteries.
At the beginning of twentieth century the Navy of Brazil initiated the program of technological modernization and acquisition of ships, aiming increase and refit the fleet. This found itself obsolete since the end of the Empire (1889), Among other factors:
- by rapidly changing media due to the arms race among the industrialized nations including the last quarter of nineteenth century and the first decade of the twentieth century ;
- the lack of acquisition of new resources by the republican government of Brazil, newly implemented, and
- according to the damage caused by two Revolts of the Armada.
In accordance with the guidelines of foreign minister, José Maria da Silva Paranhos (Rio Branco), and the Minister of Marine, Julio Cesar de Noronha, the government of President Rodrigues Alves commissioned in 1906, Next to the yards Sir WG Armstrong Whitworth & Co Ltd (Elswick, Newcastle upon Tyne, in England), Three large ships of the battleship " Dreadnought Class , "which, in Brazil, was named "Class Minas Geraes ". However, because of diplomatic pressure Argentina, Fearful of naval power in Brazil, and difficulties of financing the purchase of vessels, the initial order of three battleships had been reduced to only two, 23,500 t maximum displacement, baptized with the names of E Minas Gerais and E São Paulo.
After the keel was laid (April 17 of 1907), Was released to the sea (September 10 of 1908) And embedded in April 6 of 1910.
Operations and activities
In early November 1910, the two new battleships and Cruiser Bahia (C-12) Participated in the Revolt of Chibata.
Both Minas Gerais And São Paulo participated in the bombing of Salvador (1912), within the call Politics of bailouts.
Subsequently, during the WWI (1914-1918), worked hard at work patrolling the territorial waters of Brazil.
Underwent extensive upgrading between intervention 1935 and 1939, when she received improvements to its weapons systems and propulsion, with the replacement of their old Boilers the coal by engine oil.
During the WWII, in 1942,Was part of the defense system of the port of Salvador, in Bahia.
Was in active service until 1952, And disembodied in September 20 of 1953 and subsequently broken up.
- Class: Minas Gerais and São Paulo
- Normal speed: 19,280 tons
- Displacement laden: 21,200 tons
- Length: 161.5 m
- Mouth: 25.3 m
- Silent: 8.5 m
- Primary armament: 12 12 inch guns caliber 50 in six towers of two parts
- Secondary armament: 22 guns of 120 mm 50 caliber guns and eight 47 mm
- Shielding in the asteroid: 228.6 mm to 102.4 mm
- Shielding on deck: 57 mm
- Shielding the towers: 305 mm to 204 mm
- Shielding on the bridge: 305 mm
- Motors: 2 axles, triple expansion, Babcock boilers, 23,500 hp.
- Speed: 21 knots
- Capacity of coal: 800 to 2350 tons
- Range: 10,000 miles at 10 knots
- Crew: 900
- Cost: £ 616,360
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