Dreamliner question
Just back from a week in Turkey, flew on TUIC/D. My first time on a 787 and have to say I was very impressed. Seat back IFE to keep the kids occupied, nice bit of extra legroom which being 6'4 was a godsend, and it seemed to ride turbulence a lot better than other aircraft.
One question I have for someone who knows, after pushback and engine start there was a loud whirring noise coming from somewhere underneath it sounded like. It went on for a good few minutes after we took off, then started up again during descent. Any ideas what it was? Are the flaps hydraulically driven on the 787 or could it have been electric motors to power them? Thanks in advance.