Shaka
That's the key to it and I did mention it on thread on Ryanair and the City of Derry:
http://www.pprune.org/forums/showthr...hreadid=138607
Moderator - any chance of combining the two threads to avoid going round the same discussion again?
To move it on, does anyone have any idea of the % reduction in maintenance and fuel costs which Ryanair gain from having the de-rated version of the engine?