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Brazil's submarine development programme to start with S40

Tuesday, 06 Feb 2018

The Brazilian Navy is making progress with its massive project to build submarines.

The navy and Brazilian construction firm Itaguai Construcoes Navais (ICN) have transferred the first three sections of the navy’s lead Scorpene conventional submarine Riachuelo (S40) to the final assembly hall at the Madeira Island shipyard Rio de Janeiro. The S40 represents the first vessel of the navy’s submarine development programme (PROSUB), which is also expected to involve the development of three other conventional submarines, as well as the first Brazilian submarine with nuclear propulsion. All of the three sections were transferred to the shipyard in the Itaguai Naval Complex after completing an 11-hour journey from the Steel Structures Manufacturing Unit (UFEM), also located in Itaguai in Rio de Janeiro. The three sections of the Riachuelo submarine weighed a combined 619 tonnes, measuring 39.86m in length and 12.30m in height. A further two sections, weighing 487 tonnes and measuring 30m long, are scheduled to be transferred separately to the construction shipyard in the near future. The Riachuelo submarine will enter the final assembly phase upon the delivery of all five sections. The diesel-electric vessel is scheduled to be launched into the sea during the second half of this year. It is scheduled to enter into service in 2020, which is nearly three years later than originally planned. Riachuelo (S40) is the first of four vessels set to be constructed for the navy under an agreement that was originally signed between the French Naval Group, formerly DCNS, and Brazil in 2008.The other three Scorpene submarines will be named Humaita (S41), Tonelero (S42) and Ango Stura (S43) and are currently at different stages of development at UFEM.

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