25.03.1938 The famous Japanese ace Capt.Tateo Kato (later Lt.Col) has is best day over China, shooting down four Chinese I-15. Despite this feat the Kawasaki Ki-10 type 95 Perry was replaced by the Ki-27 Nate, less than a month of Kato's best day. Polikarpov I-15/I-152 (I-15bis) Kawasaki Ki-10 Perry Nakajima Ki-27 Nate/Clint