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What I read about combustion efficiency of jet engine is ratio of (Th-Tc)/ Th where Th combustion chamber temp and TC exhaust temp. I also read this efficiency reduces with increase in altitude and reduction in rpm. Please explain me this and correct me if I m wrong? Please don’t mix it with fuel efficiency.

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marked as duplicate by xxavier, Juan Jimenez, KorvinStarmast, Koyovis, Manu H May 21 at 15:32

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