Ge 36 Udf
In those mentioned years of the early 1980īs I was a representative of our Federal Adminstration of Air Navigation Services and a detached member of not less than 11 Noise Abatement Commissions. As I remember the UDF engines caused a real uprise by evironmentalists because of the level of noise they produced.
A more technical item I remember were unwanted resonances / vibrations of the aircraft structure. I thought they were caused by the shockwaves of the counter rotating fans. I do not remember any report about engine inherent vibrations, but assume they were existent because of the so much different and radical desighn.
Ref. the ongoing oil and bearing discussion. Is there somewhere a list of oils that show the maximum permissable oiltemperature for Jetengine oils ?? Is it correct to say that the Trent 900 runs at borderline oil temperatures ??
I know there was the one or the other hint in that long lasting thread, but want to ask to shortcut.