"Unveiled on 18th June 2011 by EADS at Le Bourget air show, it's expected to fly at mach 4, 32km above the ground, and it will carry 50 to 100 people. It will combine three propulsion systems: two turbofans for take-off and up to Mach 0.8, then rocket boosters up to Mach 2.5, then two underwing ramjets would accelerate it to Mach 4."
The Phone Alarm Must Be Destroyed
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