Embraer delivered the first upgraded A-4 (AF-1) to the Brazilian Navy on May 26 at its plant in Gavião Peixoto.

Press release said Embraer will modernize nine AF-1 single-seaters and three AF-1A two-seaters with new “navigation, weapons, power, tactical communications and sensor systems, plus computers and multimode state-of-the art radar.”

Source: Alert 5