The Dinfia IA-53 was an Argentine two-seater agricultural monoplane first flown as a prototype in 1966. The IA-53 was a low-wing cantilever monoplane powered by a Lycoming O-540-B2B5 six-cylinder horizontally-opposed air-cooled engine providing a top speed of 215 kmh and a range of 650 km.
Found on http://www.probertencyclopaedia.com/browse/II.HTM
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