Tags: Aircraft.
The O.K.15 was a 1950s Austrian two-seat light aircraft the first aircraft designed in Austria for 20 years. Designed by Otto Kauba and built at the Oeffag factory at Wiener Neustadt the O.K.15 was a low-wing monoplane powered by a Walter Minor III piston engine. First flown on 16 July 1956 it was estimated at the time to have a cruise speed of 124 mph.