重心位置对不同布局飞机尾旋特性的影响

为了研究某大型民机重心位置轴向变化对其尾旋特性的影响，在尾旋风洞中进行了飞机模型的尾旋特性研究试验，试验结果表明在前重心条件下，模型旋转更加明显，尾旋情况更为严酷。同时展示了重心位置轴向变化对鸭式布局飞机和高平尾尾吊发动机布局飞机的影响，并进行了对比分析。此外，还研究了重心位置横向变化对常规布局大型民用飞机尾旋特性的影响。

Effect of C.G. Location on Spin Characteristics of Different Layout Aircraft

An aircraft model was tested in spin tunnel to investigate the effect of C.G. (center of gravity) location in longitudinal direction on aircraft spin characteristics. The results show that the more obvious the model rotates, the more critical spin situation gets under forward C.G. condition. Meanwhile, the effect of C.G. location in longitudinal direction on spin characteristics of canard aircraft and high tail aircraft are also presented, compared and analyzed. Furthermore, the effect of C.G. location in lateral direction on general aircraft spins characteristics was also investigated in spin tunnel tests.