Hello everyone, I'm in great need of an expert answer and havn't been able to find much help at all, so I am hoping I have come to the best place. I have two questions regarding forces acting apon passengers in an aircraft. I would like to know how passengers would experience a zero gravitational force inside a pressurized aircraft, which would be in a fixed pitch 90 degee descent. Does this have anything to do with terminal velocity? Can it be achieved at all? I'm ignoring the structual limits of aircraft, and I don't want this to be a factor. Which leads me on the my second question, can the passengers inside a pressurized aircraft be accelerated beyond their own terminal velocity? I'm sorry if sound stupid in asking these questions, but I really would like a clear explanation. Many thanks in advance, Sam Crawford.