The Spaceplane is the world's finest commercial passenger spaceplane. Suborbital flight is the answer for taking a short journey into space; it begins with a 45-minute cruise at an altitude of 12 km. At this distance, the rocket propulsion system takes over from the jet engines. The Spaceplane is boosted to almost vertical attitude with the breath-taking velocity of Mach 3 (three times the speed of sound). After 80 seconds and at an altitude of 60 km, passengers are literally sent into orbit. The rocket propulsion system is then shut down and the spaceplane's inertia allows it to ascend to over 100 km. To return to Earth, the jet engines take over again, letting passengers enjoy a 30-minute descent to Earth and landing back at the spaceport.
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