The visual error of final approach leg is analysed by introducing a model, through a combination of flight data and flight methods, resulting in a minimum range of error in the final approach, which has important reference value for the actual flight.%通过引入模型分析研究了最后进近目视精度大小,通过结合最后进近的飞行参数和飞行方法,得出最后进近误差最小值的一个范围,对于实际飞行有重要的参考意义.
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