Late-war Italian aircraft began to adopt the "original" calibre German Mauser 20 mm MG 151 cannon to give their aircraft parity in firepower with Allied fighters, with as many as three MG 151 fitted to Macchi MC.205, Fiat G.55 and Reggiane Re.2005—the third cannon firing through the propeller hub of the German-designed, Italian-built Fiat Tifone inline inverted V12 engines used to power these aircraft—in addition to cowl-mounted 12.7mm Bredas-SAFATs.