Questions on 787 Undercarriage Doors and Humidity
Recent took my first pax trip in 787 and was lucky enough to chat with captain, a very approachable guy, in rear galley.
In the conversation he mentioned that the U/C doors automatically open after lift off and stay open for 60 seconds ready for gear retraction. I understood him to say that although there was a slight drag penalty, this is a performance requirement which I did not understand, but did not want to belabour. Could somebody please explain?
Also when discussing the cabin altitude he seemed to be saying that the aircraft carried water to raise the humidity in the cabin, did I understand this correctly?