The Blender, or Panic maneuver is a vertical diving roll that virtually stops its descent as it instantaneously enters into a flat spin.

搅拌器，也叫“恐慌”，的动作指的是带着横滚的垂直俯冲，然后马上接能够保持高度不变的水平自旋。

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This paper presents the methods of free flight spin test and rotation balance test in vertical wind tunnel, the design of test model is briefly expounded.

介绍了立式风洞自由飞尾旋试验和旋转天平试验的方法，简述了试验模型的设计。

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