Details can be found at: "Arquivo Souza Costa, CPDOC-FGV, pasta indexada como SC1934.03.15" in the Brazilian Archives.
Just mentioning that putting that search key into Google will point you to a 2020 PhD Thesis on Brazilian military shipbuilding, named "Construir navios é preciso, desistir não é preciso: a construção naval militar brasileira nas décadas de 1930 e 1940" ('Building ships is needed, giving up isn't needed: Brazilian military shipbuilding in the 1930s and 1940s'), which should give you plenty of information on that topic, as it is a 429-page thesis; it will take a while to fully digest the information. As for the folder itself, one will have to run through some hooops with the National Archive to get to it.
Read the relevant pages today. BTW, the "pasta indexada como SC1934.03.15" is a folder with many(some 600) documents of the Brazilian Finance Ministry regarding how to fund those ships.
Some more details on the 1932 Plan:
- Cruisers, as stated before, were supposed to displace 8,500 T and have 6 *-inch guns;
- Destroyers were as stated by COLDOWN;
- 4 of the submarines were to displace around 900 T and have 8 torpedo tubes and a 4-inch gun, while the other 2 were to displace up to 800 T and carry 42 mines(as well as lighter armament than the other submarines);
- Brazil negotiated the purchase of ships with Great Britain, the USA and Italy, mainly;
- The Italians wanted to receive money(pounds sterling, I assume), instead of doing something like the Aski Mark scheme the Germans did when dealing with Brazil, so Brazil only bought submarines from them;
- US negotiations started with Brazil trying to get
Omaha-class cruisers(the thesis says 'up to 10 cruisers of the class', so Brazil was going for the whole class - wonder how they would crew them). That plan didn't go through, for many reasons, including the fact the US Navy decided to keep them in service. Roosevelt offered, as compensation, the lease of 6
Wickes/
Clemson-class DDs; when that plan became public, it faced opposition from the US Congress, Argentina and Britain;
- As a result(as already widely-known), Brazil bought the plans for
Mahan-class DDs, to be built in Brazil, and 6 British H-class DDs. Many in the Brazilian Navy thought building a simpler design(like the H-class being built in the UK) would be more suited for construction in Brazil, something that(with the acquisition of the Brazilian destroyers by the British) would lead to the A-class DDs that would later be built.