Well, thanks for the info, guys. I am perhaps fortunate in that I never cease to be amazed at the engineering miracle that is Aviation.
Just based very broadly on the figures given, the N3 shaft in each of the 211's that carried me turned over 4 million in one crossing of the Atlantic.
They performed the same coming back over here, then to my knowledge, performed the same again a few days later bringing me home again!
And as far as I know, they did it a few more times whilst I was there, and are probably still doing it now!
What a lump of kit.!