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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.
Inflation adjusted comparisons of the SpaceShipOne program with that of the X-15 budget, indicate that the Tier One program cost 1/100 that of the X-15 program, although the three X-15 aircraft made almost 200 test flights in their entire test program, typically exploring hypersonic flight between mach 4-7.
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 ...
In 2008, Virgin Galactic ordered two White Knight Two vehicles. [6] Together, WK2 and SS2 were to form the basis for Virgin Galactic's fleet of suborbital spaceplanes.. In November 2010, The Spaceship Company had announced that it planned to build at least three additional White Knight Two aircraft and an additional five SpaceShipTwo rocket planes, the aircraft to be built by Virgin after the ...
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SpaceShipOne takes off. X PRIZE rules required that the date and place of competitive flights be announced to the X PRIZE Foundation at least 60 days before the flight. Due to problems encountered during flight 15P on June 21, 2004, Scaled Composites did not immediately set a date for their competitive flights, suspecting that another test flight might be required.
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