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Apr 28, 2022 at 19:53 comment added John K The spinny chair thing is a common ground school demonstration of vertigo from instrument flying. You close your eyes and put your head up and down as the chair is gently rotated, then told to open your eyes and stand up right away. Everybody will generally stand at about a 45 deg angle and fall over. It's the sustained turn, then stopping the turn, that gets you into trouble, and you can replicate that in a chair. The swing is to desensitize to 0 G. I'm fine in planes, but more than 15 min on a park swing gets me queezy.
Apr 28, 2022 at 19:24 comment added Jpe61 Well worth +1, but it is really hard to mimick the sensory environment of flying. The swing method might really work though!
Apr 28, 2022 at 13:04 history answered John K CC BY-SA 4.0