The CJ-6 (Chu Jiao 初教 = Chuji Jiaolianji 初级教练机 = basic trainer aircraft) is an all-original Chinese design that is commonly mistaken for a Yak-18A.

[1] During late 1957 Aeronautical Engineers Cheng Bushi and Lin Jiahua began work in Shenyang on a trainer design that addressed the shortcomings of the Yak-18A.

Wind tunnel testing validated the design, and in May 1958 the program was transferred to the Nanchang Aircraft Manufacturing factory where Chief Engineer Gao Zhenning initiated production of the CJ-6.

CJ-6 attained its civil aviation type certificate on February 28, 2019, more than 60 years after it entered military service in China.

One thing to note is that the Nanchang CJ-6 makes extensive use of pneumatics to control the gear and flap extension/retraction, operate the brakes and start the engine.