Target has increased angle and rate of descent. 目标飞机增大了下降角度和速率。
Based on the flight test data, a new practical boundary is obtained, which was almost parallel with the theoretical one, and the critical vertical descent velocity and the angle of safety descent are redefined. 通过对试飞数据的处理,得到了实测涡环边界线以及对应的临界垂直下降率和安全下滑角。