Brazilian frigate Dom Afonso

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.