02/28/2019. Remarks by Johan Visschedijk: "Powered by two 1,175 hp Daimler-Benz DB 601A-1 twelve-cylinder liquid-cooled inverted V-engines, the sole Ro 58 was tested at Guidonia in early 1943 as a prototype two-seat long-range heavy fighter, corresponding to the German Zerstörer (Destroyer) class, exemplified by the Messerschmitt Bf 110. Maneuverability of the Ro 58 proved to be excellent for a twin-engined fighter, and quantity production was planned using the Fiat R.A.1050 R.C.58 Tifone (Typhoon) engine, the license-built version of the Daimler-Benz unit. These plans were upset by the end of the war.

The Ro 58 was an all-metal low-wing monoplane with initially a single fin with a rudder, later replaced by twin fins and rudders. Armament consisted of five forward-firing Mauser MG 151 cannon, two of these in a ventral bulge which could be removed and replaced by a bomb rack, and one 0.50 in (12.7 mm) Breda-SAFAT defensive machine gun in the rear cockpit. Empty and loaded weights were 9,590 lb (4,350 kg) and 13,448 lb (7,000 kg)."