The IA 45 Querandi was designed as an executive and light transport. A twin-engined all metal high-wing cantilever monoplane with an upswept rear fuselage. It had a tailplane with two fins and rudders and retractable tricycle landing gear. Powered by two pusher configurationAvco Lycoming O-320 piston engines it had room for a pilot and four passengers. The prototype first flew on 23 September 1957 and was followed by an improved version with more powerful engines and six-seats.