Well, based on what I know of nuclear subs - which is precious little - this sounds more like a “bragging rights” project for Brazil than maybe the best military policy.
If their objective is coastal defense and to protect their oil rigs, I would think purchasing late model diesel-electric boats would be a sounder policy. You don’t need the around-the-world range of a nuke if you’re staying close to home. I would think you could also afford to buy several of them for the price of one nuc, with lower maintenance and operating costs as well.
Again, though, that’s just my armchair admiral-ing. Feel free to correct me if I’m off base here, folks.
Given the record of the French nuclear carrier, the Brazilian attempt to build a nuclear anything with the French should keep cartoonists busy for years.
The French carrier even lost a blade off one of the propellers.
Bad Froggie, BAD, BAAAD Froggie!