A new world record has been set by Austrian, Felix Baumgartner, who has broken the sound barrier without a machine to help him.
Luke Aikens, who was the sky-diving consultant on the team, told the Today programme they had been worried about Baumgartner becoming unconscious from spinning so fast after jumping off the balloon, but they were "ecstatic" when he regained control.
Mr Aikens said: "It was amazing. My job was to help train Felix for this jump, so I was pretty nervous about the part where there was no air. No matter how good you are, if there's no air to control yourself there's nothing you can do to prevent it.
"So once he regained control, it was just ecstatic. I was just proud to be part of this team."
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