611所(成都飞机设计院)早在1960年代末就开始研究鸭式无尾三角翼布局飞行平台。

611 institute (Chengdu Aircraft Design institute) initiated studied on the "tailless delta-canard" wing planform as early as the late 1960s.

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连翼布局飞机设计中，各专业学科之间的相互影响和复杂性是以前的设计中所未知的。

In the design of joined wing, the complex and the interaction between each specialities and subjects are unknown from previous design experience.

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