3 person requirement:
1) must have the space and capability to carry 3 people, although not all 3 people must fly.
2) if 3 people don't fly, additional weight must be added to offset missing passengers.
That's the way I understand it in order to win!
Thanks. I couldn't tell from the excerpt whether this flight was manned. Apparently it was:
Roaring straight up through the sky after release from the White Knight carrier plane, SpaceShipOne began rolling at the top of its flight, with pilot Mike Melvill at the controls.
"I didn’t actually have any discomfort," he said. "I thought it was kind of cool."