Brazilian frigate Dom Afonso

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NameDom Afonso
Laid down25 March 1847
Dom Afonso frigate, c. 1850
History
Empire of Brazil
NameDom Afonso
NamesakeAfonso, Prince Imperial of Brazil
BuilderThomas Royden & Sons
Laid down25 March 1847
Launched23 December 1847
FateSunk
General characteristics
TypePaddle frigate
Displacement900 metric tons (890 long tons)
Length60 m (196 ft 10 in)
Beam9.45 m (31 ft 0 in)
Draft3.66 m (12.0 ft)
Depth6.10 m (20.0 ft)
Installed power300 ihp (220 kW)
PropulsionMixed steam-sail
Armament

Dom Afonso was a steam frigate that served the Imperial Brazilian Navy, being the first steamship to serve in this navy. It was built in England under the supervision of chief of squad John Pascoe Grenfell and was named Dom Afonso in honor of Afonso, Prince Imperial of Brazil, son of emperor Pedro II of Brazil and empress Teresa Cristina.

Its first commander was then frigate captain Joaquim Marques Lisboa. The frigate participated in the rescue of the American vessel Ocean Monarch and the Portuguese vessel Vasco da Gama. It also took part in the repression of republican revolutionaries and clandestine slave traders off the coast of Brazil. The ship was part of the squadron that successfully forced the Tonelero pass in 1851 in Argentina, during the Platine War. On 9 January 1853, during a storm, it sank northwest of Cabo Frio, killing three sailors.

Dom Afonso was 60m long; its beam was 9.45m wide and measured 6.10m in depth; it displaced 900t in weight and had a draft of 3.66m. Its propulsion system consisted of a pair of paddle wheels, mounted on each side, masts and four boilers that generated 300 hp of power. This meant that the ship could sail safely in the absence of wind or coal or use both wind and steam propulsion. Its hull was built with quality wood, with the bottom of the hull lined with thick copper and with a frame made of oak covered in bronze and copper. Its artillery consisted of two 68 caliber howitzers and four 32 caliber culverins. The crew consisted of 190 to 240 men, depending on the occasion. It was considered by the Brazilian navy its first steamship proper, at the time an innovation.[1]

Construction

The frigate was built at the Thomas Royden & Sons shipyard in Liverpool, England, based on the design of the British ship HMS Fury. Its boilers and condensators were built by B. Hick and Sons in Bolton. The construction of the ship was under the supervision of English officer John Pascoe Grenfell, at the time consul of Brazil in Britain, who demanded a payment of 5% of the ship's total construction cost. His request was granted by the Brazilian government. Dom Afonso was named on 25 March 1847, in homage to the imperial prince Afonso Pedro, firstborn of emperor Pedro II and his wife Teresa Cristina. It was launched into the sea on December 23 of that same year and joined the navy in 1848.[2][3]

Career

See also

References

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