The Italian Fighter Germany Desired

The Fiat G.55 Centauro was one of Italy’s three Serie 5 fighters, developed around the German DB 605 engine built under license as the Fiat RA.1050 Tifone. Alongside the Macchi C.205 and Reggiane Re.2005, it represented Italy’s final effort to field a competitive high altitude interceptor during the later stages of the war. Of the three, the G.55 attracted the most serious interest from Germany.

Why Germany Took Notice

The G.55 first flew in April 1942 and was evaluated against its Serie 5 rivals. While the C.205 performed well at low and medium altitude and the Re.2005 showed strong maneuverability, the G.55 offered the best overall high altitude performance. This mattered by 1943, as Allied strategic bombers were operating routinely over Italy.

In February 1943, a German test commission compared the Italian fighters with the Bf 109 G-4 and Fw 190 A-5. Both the G.55 and Re.2005 were rated excellent. The Re.2005 was dismissed due to manufacturing complexity, leaving the G.55 as the preferred option. The commission’s leader went so far as to describe it as the best Axis fighter, based on its balance of firepower, ceiling, and handling.

Strengths as an Interceptor

The G.55 entered service in March 1943, just as Italy faced increasing bomber pressure. Its large wing area supported strong high altitude performance, with a service ceiling over 12,700 meters. This placed it above most Axis fighters and close to contemporary American designs.

Armament was another strength. The Serie I carried three 20 mm cannons and two heavy machine guns, with ample ammunition. Later versions replaced the machine guns entirely with cannons, creating a dedicated bomber interceptor capable of sustained fire against heavy formations. Compared with the Bf 109 G-4, the G.55 offered superior armament and ceiling, with similar climb performance.

The Production Problem

Despite its capabilities, the G.55 was expensive to build. It required roughly three times the man-hours of a Bf 109. German engineers believed this could be reduced, but wartime conditions made such changes unrealistic. As a result, Germany abandoned plans to produce it and redirected the more powerful DB 603 engine toward domestic designs.

Only 274 G.55s were completed during the war. Combat service was limited, but Italian pilots flying with the ANR reported solid performance against P-51s, P-47s, and Spitfires. Individual pilots, such as Giulio Torresi, demonstrated the aircraft’s effectiveness even under extreme numerical pressure.

Strategically, however, it arrived too late and was too complex to alter the course of the war. Its reputation rests not on numbers or impact, but on what it showed was technically possible.