The "Centauro" entered in service with the ANR; a decision was made to produce 500 G.55s, of which 300 were G.55/I and 200 G.55/II "Serie" II, armed with five 20 mm MG 151/20s and no machine guns.
El Centauro entró en servicio con la "Aeronáutica Nazionale Repubblicana" y se decidió producir 500 aparatos; 300 serían G.55/I y 200 G.55/II (Serie II), armados con cinco cañones MG 151/20 y sin ametralladoras.