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Brasil has benefitted a lot from technology exchange with Saab. For those of you who are not familiar with the concept, the idea ,(very simplified) is that Brasil buys a lot of Saab planes, and in return gets knowledge about latest Swedish advances in the field. And Sweden, while perhaps not best in class, builds decent military planes, and I assume at least some of the knowledge is transferable to civil applications as well.

That's almost cheating given Santos-Dumont's role in the origins of aviation. That said I don't think there are any modern, high bypass turbofans coming out of Brazil. China will need those if they hope to have a fully homegrown solution.

3rd world doesn’t mean poorly developed.

It just means not 1st world (NATO countries) or 2nd (Soviet Bloc)

So for example Finland and Sweden are third world countries?

Yes.

Also Ireland, Switzerland, Austria, and almost all of the Middle East.