Originally Posted by
bsieker
The answer is definitely not what you suggest, which, at the risk of sounding like a broken record, does not give you attitude information!
Probably the best way to demonstrate this to non-aviators is the old video of Bob Hoover performing a barrel roll with a glass of refreshing iced tea on the glareshield. Even though the aircraft is clearly inverted, Bob maintains coordinated flight, and the tea in the glass remains level.
Bob then one-ups himself by POURING a glass of tea while performing a barrel roll. Even though the aircraft is inverted, the stream of tea always flows toward the floor of the aircraft.