The Y-11 failed to attract export orders while equipped with Chinese radial engines, so it was converted to the Y-12.
In July 1982 it was reported that the Harbin Aircraft Works had developed a turbine-powered version of the Y-11, with PT6A-110 turboprops. A prototype was reputed to have flown. With a gross weight of 12,125 lb / 5500 kg, the maximum payload is 3748 lb / 1700 kg, and the Y-11T is estimated to have a max speed of 175 mph / 282 kph and a max range of 876 miles / 1410 km.
All Aero 