The PWR reactor design for the Brazilian Navy’s future nuclear-powered submarine (SN-Br) has been completed. A model of the design, known as the 2131-R, and an actual-size combustion element were on display at the navy’s stand at the LAAD exhibition in Rio de Janeiro. A spokesperson from the Brazilian Navy told Shephard that the reactor design had been completed with assistance from France but that the reactor itself would be built in Brazil at a later date. The navy had two separate designs of the SN-Br on display at the stand. A model from the navy’s technology centre in Sao...