ICM Models 1/48 ICM Ki-21-Ib Sally Japanese Heavy Bomber Plastic Model KitThe Ki 21 bomber, also known as the Sully during World War II, was developed by Mitsubishi designers in accordance with the requirements set by the General Aviation Directorate. The first prototype of the aircraft took off on December 18, 1936, and flight tests of prototypes took place over the next year. Serial production began in the spring of 1938. The bomber was produced by two factories, Nakajima and Mitsubishi, and the aircraft of these two