Each pavilion patron will have a chance to win a freeflight in the vertical windtunnel.
每位参观游客都有机会免费体验垂直风洞。
2
This paper presents the methods of freeflight spin test and rotation balance test in vertical windtunnel, 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。
3
The model freeflight method in windtunnel is a non-intrusive way to measure the aerodynamic characteristics of a model.