The logarithm model in fighter plane air combat effectiveness assessment is analyzed firstly, and its deficiencies are put forward.

首先详细分析了战斗机空战效能评估中常用的对数法模型，指出了模型中存在的问题；

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But apart from the minor niggles, Mr Knapp said the Mark IA is in fantastic condition and is the best preserved early model of the fighter plane he has ever seen.

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