Nuclear submarine “Alvaro Alberto” and Brazilian submarine fleet developments

Deliorman

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Many people don’t know that Brazil is actually right now building its first nuclear-powered attack submarine which will be named “Alvaro Alberto”. It is being built by Itaguaí Construções Navais (ICN) in Rio de Janeiro with the assistance of Naval Group (France). The whole project is worth 8,9$ billion dollars and includes 5 new submarines- 1 nuclear-powered “Alvaro Alberto” and 4 modified Scorpene class diesel-powered submarines.

The first 1700 ton submarine named Riachuelo (S-40) have already been lowered into the sea in the end of 2018 in Rio de Janeiro. It features diesel propulsion and an additional air-independent propulsion (AIP). In the following years it’s the Humaitá (S-41), the Tonelero (S-42) and Angostura ( S-43) that are expected to enter service too.

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On October 21st the assembly of the Nuclear Propulsion Prototype Reactor of the Brazilian Submarine Development Program (PROSUB) was started at the Experimental Center Aramar located in Iperó, São Paulo. The assembly of the reactor will be replicated in the construction of the first Brazilian submarine with nuclear propulsion, the “Álvaro Alberto”. It will be powered by a 48MW reactor and the sub will have a displacement of 6000 tons.

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Nilgiri

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For the record, the PROSUB program calls for the design and construction of four Riachuelo-class conventional submarines (SB-R), the design of the future nuclear-powered submarine (SN-BR) and the design of a naval base in ItaguaÏ. French Shipbuilder Naval Group is assisting Brazil in all steps of the PROSUB program.


According to the Brazilian Navy, “the event represents the initial step in the project licensing process and the construction process of the SN-BR. Admiral Olsen, invested with the competence delegated to him as Naval Authority for Nuclear Safety and Quality, emphasized the importance of this strategic milestone, which contributes directly and indirectly to a pioneering initiative, of historical importance, by concretely expressing the Navy’s dedicated and judicious treatment with the safety of its crews, the environment and society in general, an inseparable attribute of the strategic naval environment that will materialize one of the most relevant defense bastions of the Blue Amazon.”

(more at link)
 

Madokafc

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They need to defend all of their coastal area and including lot of Atlantic ocean, hence the name of Blue Amazon project. In which will including the building of new Aircraft Carrier, several AAW Frigates and large number of OPV/Corvettes.
 

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