Word: vvrrooom
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...booms it will create whizzing along at Mach 2.7 and the airport noise its engines will cause. But Boeing is confident that its swing wing, which folds back along the fuselage at 1,800 m.p.h. and opens out at slower subsonic speeds, may solve much of the boom and vvrrooom. And even while some engineers work at refinements such as these, others are already seriously at work on a new generation of jets to eventually follow. They would be called HSTs, for hypersonic transport, and would hurtle along at Mach 10 or 6,600 m.p.h. At that speed, the trip...
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