BS (!)
In other words, the precedent has already been set, in the last five years or so (sic), for BA aircraft to operate over long oceanic stretches with 75% of available thrust, as a matter of routine
Please read my post... I said, BA
and other Euopean Carriers i.e. a general precedent has been set, not a BA specific one.
PS What is the "long oceanic" stretch you refer to...? This was a LAX-LHR flight... No long over water bits I know of
PS, on many of our routes the PAX might get a 777 or 744... so are you suggesting when a 744 is used, the PAX pay a 4 eng supplement