On September 29, 2004, Mike Melvill flew SpaceShipOne to 102.9 km. About 50 seconds into the burn, at Mach 2.7, it began rolling rapidly, completing 29 rolls. It was the first of two flights needed to win the $10 million Ansari X Prize.

On September 29, 2004, Mike Melvill flew SpaceShipOne to 102.9 km. About 50 seconds into the burn, at Mach 2.7, it began rolling rapidly, completing 29 rolls. It was the first of two flights needed to win the $10 million Ansari X Prize.