[Daus]

I know you couldn't do the same things with an Airbus A340.

Any idea of what she is describing is 'required' or is Boeing going for beyond the FAA requirement?

[wk4bush2004]

Boeing is probably going above and beyond. Boeing is a lot more technologically advanced than Airbus and its planes are more capable than Airbus.

The 777-200LRs sister, the 777-300ER, managed to fly over the Pacific Ocean for 6 hours & 29 minutes---on 1 engine! That overwhelmingly surpassed FAA requirements. I'm sure the 777-200LR will be able to do the same.

[DuncanWaring]

Theoretically,as I recall, per the regulations, a 4-engine aircraft is supposed to be able to lose two engines on takeoff at max gross takeoff weight after having accelerated to a certain speed, continue the takeoff, and maintain a positive climb gradient.

Then again, you're not supposed to be able to kick the rudder off at low speeds, either.