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SpaceShipOne ranks among the world's first spaceplanes in the first 50 years of human spaceflight, with the North American X-15, Space Shuttle, Buran, and Boeing X-37. SpaceShipOne is the second spaceplane to have launched from a mother ship, preceded only by the North American X-15.
The White Knight and SpaceShipOne were designed by Burt Rutan and manufactured by Scaled Composites, a private company founded by Rutan in 1982. On three separate flights in 2004, White Knight conducted SpaceShipOne into flight, and SpaceShipOne then performed a sub-orbital spaceflight, becoming the first private craft to reach space.
Although not a Virgin Galactic launcher, SpaceShipOne was the direct predecessor of the Virgin Galactic vehicles, and served to demonstrate the feasibility of the concept. SpaceShipOne was an experimental air-launched rocket-powered aircraft with sub-orbital spaceflight capability at speeds of up to 3,000 ft/s (900 m/s), using a hybrid rocket ...
Tier One was a Scaled Composites' 1990s–2004 program of suborbital human spaceflight using the reusable spacecraft SpaceShipOne and its launcher White Knight. The craft was designed by Burt Rutan, and the project was funded 20 million US Dollars by Paul Allen.
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(L–R) Marion Blakey, Mike Melvill, Richard Branson, Burt Rutan, Binnie, and Paul Allen reflect on a mission accomplished in 2004. On December 17, 2003, the 100th anniversary of the Wright brothers' first powered flight, Binnie piloted the first powered test flight of SpaceShipOne, flight 11P, which reached a top speed of Mach 1.2 and a height of 12.9 miles (20.7 km).
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SpaceShipOne was released from White Knight at an altitude of 46,000 ft (14.0 km) and a speed of 120 knots (62 m/s). After ten seconds the rocket was lit, for a 55 second burn. At burn-out the altitude was 150,000 ft (45.7 km) and the Mach number was 2.5. The craft then coasted to an apogee altitude of 211,400 ft (64.4 km).