This is one of the only four aicrafts built as -3B, to be added to the only and first -1B. It went not in series production in favour of the next G.82, but also this one had a similar destiny, in favour of the T-33 and then of the MB-326.

Fiat designed the G.80 for the same role as the T-33, but performance fell short despite good handling in flight. After two prototypes, three preproduction aircraft followed. This is the second one of those, with a forward fuselage part of a G.82, a further development that did not enter production either.