SpaceShipOne flight 11P
White Knight, piloted by Peter Siebold, carried SpaceShipOne to launch altitude. At 08:15 PDT at an altitude of 47,900 feet (14.6 km) and a speed of 112 knots (58 m/s), SpaceShipOne was released from White Knight. After gliding to 44,400 feet (13.5 km) and accelerating to Mach 0.55, the rocket was lit for a 15 second burn.
9 seconds into the burn, SpaceShipOne exceeded the speed of sound. The craft climbed at a 70 degree angle, accelerating at 3 g (30 m/s²). At burn-out the Mach number was 1.2. The craft coasted to an apogee altitude of 67,800 feet (20.7 km).
The craft was reconfigured into high-drag ("feathered") mode to begin descent. After about a minute of descent, it switched to glider configuration at 35,000 feet (10.7 km). It then glided for 12 minutes back to Mojave Airport.
During landing a roll oscillation caused the left main gear to collapse. The craft made a runway excursion rolling to a stop in soft sand. The craft sustained minor damage, later repaired, and the pilot was uninjured.