The Reggiane Re.2000 Falco I was an Italian all metal, low-wing monoplane developed and manufactured by aircraft company Reggiane. The type was used by the Regia Aeronautica (Italian Air Force) and the Swedish Air Force during the first part of the Second World War.
The Re 2000 was developed by a team headed by aircraft designers Roberto Longhi and Antonio Alessio to be a lightly-built and highly maneuverable interceptor/fighter aircraft. The emergent design, which had been designated as the Re 2000 Falco I, was equipped with a Curtiss-Wright-style retractable undercarriage, bore substantial similarities to the American-built Seversky P-35. On 24 May 1939, the prototype performed its maiden flight. Flight testing of the prototype revealed it to be able to outfight several significant combat aircraft of the time, including even the more modern Macchi C 200 and the German Messerschmitt Bf 109E fighters. During the run up to and following the outbreak of the Second World War, the aircraft was ordered by several nations, including the Hungarian, Swedish, British and Italian governments.
Upon entering squadron service, the Re 2000 soon proved to be a technically advanced aircraft, being well balanced and extremely aerodynamic during flight, but was not without its faults. Although the aircraft was potentially superior to Italian contemporary fighters (Fiat G 50 and Macchi C 200), the Re 2000 was not considered to be satisfactory by Italian military authorities. Consequently, the manufacturer built the type for export and almost all of the first production served with the Swedish Air Force and Hungarian Air Force, rather than in the Regia Aeronautica. The Re.2000 served as the starting point for several derivatives, including the MÁVAG Héja, Reggiane Re.2001, Re.2002, Re.2003, Re.2004, Re.2005, Re.2006 and Re.2007 combat aircraft.
Development
Background
During 1938, the Italian Air Ministry launched Programme R, a comprehensive effort targeted towards the enactment of several improvements, both qualitative and quantitative, throughout the Regia Aeronautica (Italian Air Force). At the time, those fighter aircraft under consideration for their potential adoption had either already reached the prototype phase of development (such as the Fiat G.50 and the Macchi C.200) or were within advanced stages of development (like the Aeronautica Umbra Trojani AUT.18 and the Caproni Vizzola F.5). However, only one aircraft, designated as the Re 2000 by Italian aircraft manufacturer Reggiane, was intentionally designed with the intention of competing for orders under Programme R in mind.
During 1938, work commenced at Reggiane on a new fighter design; the company's design team, which was headed by Roberto Longhi and Antonio Alessio, set about designing an aircraft that would be offered to the Air Ministry that would not only meet but exceed the requirements of Programme R. Having very little time, the company considered various options, including the potential for manufacturing an American-developed fighter aircraft under license, however, under the influence of aeronautical engineer Giovanni Battista Caproni, a completely new design was rapidly prepared. The design team took inspiration from the contemporary American fighter Seversky P-35, which Re.2000 would superficially resemble; according to aviation author Gianni Cattaneo, the design "displayed evidence of fairly strong American influence...certain structural characteristics were strongly reminiscent of the American school, particularly of the Seversky P-35". Refinement of the Re 2000's aerodynamic characteristics greatly benefitted from a series of wind tunnel tests held at Caproni's facility in Taliedo, Milan.
Flight testing
On 24 May 1939, the prototype Re 2000 conducted its maiden flight at Reggio Emilia, Emilia-Romagna, Italy, flown by Mario De Bernardi. According to Cattaneo, early flights had quickly demonstrated the type's favourable flying attitude, including good speed and high manoeuvrability. Only minor modifications were required after the successful completion of the initial factory flight test programme; these including changes to the exhaust, the lengthening of the carburetor air intake, and the replacement of the round windshield with a framed counterpart. Following the completion of armament trials at Furbara, Santa Marinella, in August 1939, the prototype was delivered to the Experimental Establishment of the Regia Aeronautica to commence its formal evaluation.