The Argentine Navy requested that INVAP develop the CAREM nuclear reactor to power these submarines, but the program was halted in late 1980s.
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The feasibility study includes technicians from INVAP and CNEA, who are investigating the possible use of a CAREM reactor in the unfinished vessel.
Mathes spearheaded fundraising efforts for CAREM, a non-profit historical society based in Tecate, Baja California, which promotes the history of Baja California.