MD83FO
6th Aug 2020, 23:21
Hi! Is it fair to say that a engine indicating an EPR below 1 is windmilling ?
Pugilistic Animus
7th Aug 2020, 00:35
https://www.pprune.org/tech-log/634168-ge-engines-not-displaying-epr.html
post 31...but overall that's a great thread
tdracer
7th Aug 2020, 00:37
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.