First Section of the Second Conventional Submarine of Prosub Leaves Manufacturing Workshop and Goes to the Shipyard Also in Itaguaí, Rio de Janeiro
A successful transfer of the first section of the submarine Humaitá (S-BR2), the second submarine of PROSUB (Submarine Development Program) of the Brazilian Navy, took place on the morning of last Thursday (04/25).
The first section of the submarine Humaitá left the Metal Structures Manufacturing Unit (UFEM) and proceeded to the Construction Shipyard, ICN, both in Itaguaí-RJ.
At ICN, the structure will receive the installation of sensors and equipment, and all joining services to the other sections will be performed, which are expected to be completed and transferred by the end of June this year.
The plan is for four more sections to be transferred for the complete assembly of the vessel’s hull at the shipyard in Itaguaí.
PROSUB
PROSUB plans to build four submarines powered by conventional propulsion (Diesel-electric) and one powered by Nuclear propulsion, the first of its kind to be manufactured in Brazil.
Humaitá is the second of the four and is expected to be ready by the end of 2022.
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The first submarine of the program was launched to sea on December 14 of last year and was named Riachuelo (S40), with its sea trial scheduled for this year.
The sea trial for Humaitá (S-41) is expected for 2020, Tonelero (S42) in 2021, and Angostura (S43) in 2022.
The last submarine to be completed will be (SN-BR), which will be named “Álvaro Alberto,” in honor of the Brazilian Admiral who was a pioneer in the use of nuclear technology in the country.
The Brazilian Nuclear Center, where the Angra 1, 2, and 3 plants are located, situated in the city of Angra dos Reis, in the southern state of Rio de Janeiro, also received this name in honor of the Admiral.

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