英语词汇“performance class 1 helicopter”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	performance class 1 helicopter
释义	performance Class 1 helicopter performance Class 1 helicopter A helicopter with performance such that, in case of critical power-unit failure, it is able to land on the rejected takeoff area or safely continue flight to an appropriate landing area, depending on when the failure occurs (ICAO).
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performance Class 1 helicopter