Interesting post. Having not flown aeros for more than a year I found myself feeling extremely rotten flying a Chipmunk last week.
Briefed as an aerobatic sortie with spinning, loops and barrel rolls I was flying the aircraft from the front seat with an experienced instructor in the back. Spinning was disorientating to say the least and it took me three attempts to nail the correct recovery technique with considerable height loss - good reminder in how essential it is to only begin aerobatics at a suitable height above the ground.
Next up were some loops. During the third loop I was happily watching the horizon reappear over my head when I found myself get the cold sweats and a dry mouth. Uh oh.
Moving on to barrel rolls and I was very, very queasy so called it a day and flew the aircraft back for an uneventful landing.
I was surprised my tolerance for aerobatics was not higher given previous experience. I'd eaten a decent breakfast, was rested and excited about the flight and well briefed about what to expect.
I don't think it was down to G tolerance but the onset of nausea was something I'd like to reduce or at least delay next time. Would using breathing and straining techniques have helped? Would the nausea be caused by G or just the mechanics of the inner ear?
Lunchmaster