 The lines of the fuselage were aerodynamically efficient, and the design was intended to exploit the famous Daimler-Benz DB 605 engine.The only drawback was a certain structural weakness in the rear section of the fuselage.Only 48 examples had been delivered before the Armistice, and these fighters took part in the defence of Naples, Rome and Sicily, with the survivors battling above the crumbling ruins of Berlin, in German insignia.