Hi,
Thank you for your answers. I apologize for the delay regarding this post.
I should said engine having problems instead of a failed engine, like engine experiencing high EGT, and after reducing the power the EGT returns to the allowable limit and the engine is kept running at idle.
-I am wondering about another utility (besides the one mentioned previously in your posts) of idling engine after it is experiencing permissible problems :
The idled engine will reduce the trim between the normal operating engine and the idled engine (compared to the trim caused by one engine normaly operating at MCT in such case), therefore reducing fuel consumption. In addition the airplane will fly at at higher altitude with both engines compared to an altitude with one operating engine, so this will save more fuel for a diversion (according to the previous posts LAND ASAP, so it is not possible for a twin to continue the flight if the planned destination is not far from the divertion airport or may be even to opt for adequate and suitable alternate airport).
Is this statement true?
-If a permissible idling engine (in stead of shutting) in trijet or quad will save fuel as described above (for the twin and if it is true), is it possible to continue the flight for the planed destination (assuming we saved enough fuel by idling engine)?
-When the engine is set at flight idle or lower power settings, the EPR will probably be < 1, does it mean that the engine is not producing thrust?
Is there an EPR limit for a minimum thrust and/or providing electric, hydraulic and pneumatic power? (or may be minimum N1 if the aircraft is not fitted with EPR).
Feedback appreciated. Thank you
Best regards.