Thanks for the abusive reply. You ask a question and can't handle a simple answer, so it's my bloody fault.
OK Grub I will explain in a way that I hope a feeble brain such as yours can follow.
B 777 aircraft are now allowed to fly direct Auckland to LA, without the need to dogleg over Hawaii. This saves time for all and fuel costs. FAA granted this privilege because the engines, be they RR or GE have such incredible Mean Time Between Failures that they now have the freedom granted to four engined B 747s.
As you might imagine, the engine manufacturers jealously guard that status and are always looking over the operators' shoulders to see what faults are logged. In fact they have real time monitoring of engines while in flight. So you think some men in coats and black hats can dope the fuel that those engines burn and nobody will object?
Keeping engines turnin and burnin is an incredibly exact science, so you can delete fuel doping from your list of ways to deliver "whatever". The engine manufacturers would NEVER allow it, nor could they be kept in the dark.
