After the '0' scries of fighters — Fiat G.50, Reggiane Re.2000 (SAMIVol3/6, June 1997) and the Macchi C.200 (SAMI Vol2/8, August 1996) — the Italian aircraft industry entered a second phase in a desperate effort to regain lost ground. Most of the aircraft on the Regia Aeronautica (RA) inventory were at that time powered by bulky radial air-cooled engines as no Italian aeroengine manufacturer had managed to produce an in-line liquid-cooled power plant of suitable performance. If the Italian aircraft industry was to produce anything like the Spitfire and Messerschmitt Bf 109, it had no option but to turn its attention beyond its shores for the necessary power around which to build such projects. On the personal initiative of Ing. Alberto Longhi, head of Reggiane's Technical Office, the excellent Daimler-Benz DB.601A arrived in Italy, first through the supply of a number of examples, and later through its licence-production. The Italian version officially matched the original's l,175hp at sea level running at 2,300rpm, and l,040hp at 4,100m. In practice, it seems that some did not perform so well, while there were the odd ones which bettered specified rates by some 10-12%!
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