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Old 6th Aug 2020, 23:21
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EPR Question

Hi! Is it fair to say that a engine indicating an EPR below 1 is windmilling ?
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Old 7th Aug 2020, 00:35
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GE engines not displaying EPR
post 31...but overall that's a great thread
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Old 7th Aug 2020, 00:37
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Originally Posted by MD83FO
Hi! Is it fair to say that a engine indicating an EPR below 1 is windmilling ?
No...
During idle descent, it's quite common and normal for EPR to read less than 1.0 (I've seen as low as 0.7). And, even though EPR is below 1.0, the core is still producing thrust due to the high exit temperature.
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