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装备苏２７战斗机的АЛ－３１Ф，是由俄罗斯的“留里卡－土星”航空航天发动机制造公司在１９８５年研制的第四代单元体设计、推重比为８的涡轮风扇发动机。该发动机有很高的可靠性及技术维护性能。据报道，在１０００小时飞行中，每架飞机的非计划拆卸率为０．４次，翻修率
The АЛ-31Ф, equipped with Su-27 fighter jets, is a fourth-generation unit body designed by Russia’s Julian-Saturn aerospace engine manufacturing company in 1985 with a thrust-weight ratio of eight turbo-fan engines. The engine has high reliability and technical maintenance performance. It was reported that in a 1000-hour flight, the unplanned disassembly rate per aircraft was 0.4 and that the revision rate