The Alfa Romeo 122 was a 12-cylinder inverted-V aircraft engine produced in 1941 by Alfa Romeo Milano as a licence-built Czechoslovakian Walter Sagitta, featuring a single-speed supercharger.
The 122 R.C.38 major production variant had a reduction gearbox, single stage supercharger and rated altitude of 3,800 m (12,500 ft).
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