If I recall correctly from Hans Kunicke's book about the jet engine, the statement that EPR is ok for turbojet engines, but DIFFICULT TO MEASURE ACCURATELY in hi-bypass fan engines sez it all!
Had to fly EPRs on classic 74s some years ago and was sooooooh happy to move onto a 'frame with N1s.
Using the TLAR principle, a strange looking N1 will stick out like the dog's
s, but 1 point something or other never did it for me.
Maybe Hans would comment if he's still around and aware of this thread?
Which reminds me, I must call a millibar by it's proper name, a hectopascal, so's I can sound like I come from the far west and make words have more syllabubs and sound important...............................
