Brazilian cruiser Rio Grande do Sul

Rio Grande do Sul was a Bahia-class cruiser built for the Brazilian Navy in 1909–10.

For other ships with the same name, see Brazilian ship Rio Grande do Sul.

Rio Grande do Sul sometime after its mid-1920s modernization, as indicated by the third funnel.[1]
History
Brazil
Name: Rio Grande Do Sul
Namesake: The Brazilian state of Rio Grande do Sul
Builder: Armstrong Whitworth[1]
Yard number: 810[2]
Laid down: 30 August 1907
Launched: 20 April 1909
Commissioned: 14 May 1910
Decommissioned: 1948
Fate: Scrapped
General characteristics
Class and type: Bahia-class cruiser
Displacement: 3,100 tonnes (3,050 long tons; 3,420 short tons)[1][3]
Length:
  • 122.38 m (401.5 ft) oa
  • 115.82 m (380.0 ft) pp[3]
Beam: 11.89–11.91 m (39.0–39.1 ft)[3]
Draft:
  • 3.81 m (12.5 ft) forward[3]
  • 4.75 m (15.6 ft) amidships[3]
  • 4.42 m (14.5 ft) aft[3]
Propulsion:
Speed:
  • 27.016 knots (50.034 km/h; 31.089 mph) trial[1]
  • 25 knots (46 km/h; 29 mph) at full load[3]
Endurance:
  • 1,400 nautical miles (2,600 km; 1,600 mi) at 23.5 knots (43.5 km/h; 27.0 mph)[4]
  • 3,500 nautical miles (6,500 km; 4,000 mi) at 10 knots (19 km/h; 12 mph)[4]
Complement: 320[4] to 357[3]
Armament:
Armor:
Notes: Specifications given are prior to the 1925–26 modernization.

Construction and commissioning
See also: South American dreadnought race

Rio Grande do Sul was part of a large 1904 naval building program by Brazil.[5][6] Also planned as part of this were the two Minas Geraes-class dreadnoughts, ten Pará-class destroyers, three submarines and a submarine tender.[6][7] With a design that borrowed heavily from the British Adventure-class scout cruisers,[1] Rio Grande do Sul's keel was laid in 1907 in Armstrong Whitworth's Elswick, Newcastle upon Tyne yard.[1] Construction took about a year and a half, and she was launched on 20 April 1909 with Madame A. M. Gomez Ferraz being the sponsor on behalf of Her Excellency Senhora Dr. Carlos Barbosa.[8] As a class, Bahia and Rio Grande do Sul were the fastest cruisers in the world when they were commissioned,[1] and the first in the Brazilian Navy to utilize steam turbines for propulsion.[3]

Endnotes
  1. Scheina, "Brazil," 405.
  2. http://www.tynebuiltships.co.uk/R-Ships/riograndedosul1910.html
  3. "Rio Grande do Sul I," Serviço de Documentação da Marinha – Histórico de Navios.
  4. Moore ed., Janes Fighting Ships, 300.
  5. "Cruzador Bahia – C 12/C 2 Archived 26 February 2008 at the Wayback Machine" (in Portuguese), Navios de Guerra Brasileiros. Retrieved 8 November 2012.
  6. Scheina, "Brazil," 403.
  7. Scheina, Latin America's Wars, 37.
  8. The Engineer. 107. 1909. p. 420.

References
  • Brook, Peter (1999). Warships for Export: Armstrong Warships 1867 – 1927. Gravesend, Kent, UK: World Ship Society. ISBN 0-905617-89-4.
  • Moore, John, ed. Jane's Fighting Ships of World War I. London: Random House [Jane's Publishing Company], 2001 [1919]. ISBN 1-85170-378-0. OCLC 48257502.
  • "Rio Grande do Sul I." Serviço de Documentação da Marinha – Histórico de Navios. Diretoria do Patrimônio Histórico e Documentação da Marinha, Departamento de História Marítima. Accessed 27 January 2015.
  • Scheina, Robert L. "Brazil" in Robert Gardiner and Randal Gray, eds. Conway's All the World's Fighting Ships: 1906–1921. Annapolis: Naval Institute Press, 1985. ISBN 0-87021-907-3. OCLC 12119866.
  • Whitley, M.J. Cruisers of World War Two: An International Encyclopedia. Annapolis: Naval Institute Press, 1995. ISBN 1-55750-141-6. OCLC 34089382.
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