It is important but difficult to establish uniform and repeatable stick inputs in ground-based simulated experiments of flight control system, especially of stability and control augmentation system.

Secondly, the stability of designed AFCS is analyzed and an amalgamation control mode of damper and stability augmentation control system is put forward in the paper.

The results show that the stability and control are sufficient, that the flying qualities are satisfactory after stability augmentation, and that the roll attitude protection system works as expected.