Due to the lack of air at 120,000 feet, a high altitude parachutist could easily spin out of control. To get a sense the amount of G forces I can take before blacking out, I went flying with my very good friend and aerobatic pilot Craig Beevers, who was UK Air Race Champion in 2005. Craig's Marchetti was just the tool for the job. Tunnel vision just before blackout is a really wierd experience as we pulled over 6 G's high over the Essex countryside. I nearly re decorated Caig's cockpit with my breakfast but managed to keep it down...just!
For more on my Space Jump training visit the Project Space Jump site.