【作者】 王海平； 王保祥；

【Author】 WANG Hai-ping, WANG Bao-xiang(Chinese Flight Test Establishmen4 xi’an 710089, China)

【机构】 中国飞行试验研究院；

【摘要】 从能量的角度出发,在分析飞机可用推力(或换算推力)、阻力(或换算阻力)以及剩余推力的基础上,推导出单位剩余功率。进而通过使用能量法nz=1单位剩余功率获得飞机稳定盘旋性能的方法。结合实例分析了某型飞机通过平飞加速获得Nz=1单位剩余功率,并运用试飞数据加以验证。结果表明该方法可行,其误差与直接盘旋法的误差相当,并具有实施简单,试飞数据质量高和试飞架次少的优点。更多还原

【Abstract】 Based on the principle of energy method, the specific excess power is deducted by analysis of airplane available thrust. The method of acquiring the sustained turn performance is obtained by using the specific excess power followed. According to an example, the specific excess power of a given airplane is concluded through level acceleration, then it was verified by flight test data. The result shows that this method is efficient, it’s calculate error is near the same level with spiral method, this method also has the advantage of easy to execute, higher quality of flight test result and lower flight run.更多还原