Brazilian SSN Alvaro Alberto to be commissioned in 2034.

According to a tweet published by Victor Barreira / Defence 360° on June 4, 2021, the Brazilian nuclear-powered attack submarine SSN Alvaro Alberto is scheduled to be commissioned in 2034.
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Brazilian submarine Riachuelo (Picture source: Twitter account of Sankalan Chattopadhyay)

The Brazilian submarine Álvaro Alberto is a nuclear-powered attack submarine (SSN) under construction for the Brazilian Navy, by the Itaguaí Construções Navais (ICN). The construction is part of the strategic partnership signed between France and Brazil in 2009, which also included the total transfer of technology and support for the construction of four enlarged conventionally-powered Scorpène-class submarines.

Álvaro Alberto has many similarities to his conventional predecessor of the Scorpène class. The first Brazilian nuclear submarine will have a beam of 9.8 m (32 ft) to accommodate the pressurized water nuclear reactor (PWR). Its 100 m (330 ft) length and 6,000-ton displacement will be propelled by a 48 MW (64,000 hp) fully-electric propulsion system.

The Scorpène-class submarines are a class of diesel-electric attack submarines jointly developed by the French Company Naval Group (formerly DCNS) and the Spanish company Navantia. The Scorpène class of submarines has four subtypes including the CM-2000 conventional diesel-electric version, the AM-2000 air-independent propulsion (AIP) derivative, the downsized CA-2000 coastal submarine, and the enlarged S-BR for the Brazilian Navy, without AIP. The Scorpéne-class submarines are in service with Chile, Malaysia, India, and Brazil. Over fourteen Scorpène submarines were sold by Naval Group internationally.