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Boeing unveils design for hypersonic passenger plane

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Boeing has revealed a concept design for a hypersonic aircraft that could reach most locations in the world within one to three hours.

The American aerospace company showed a rendering of what the plane could look like at the American Institute of Aeronautics and Astronautics conference in Atlanta this week.

Boeing said the design was based on current research by company engineers, who are looking at passenger travel as one of many possible applications for the hypersonic technology they are developing.

Plane would fly at Mach 5

The technology would mean flying at Mach 5 (around 3,836 miles per hour). That's much faster than the supersonic travel achieved by the Concorde, which flew at Mach 2. The speed of sound is Mach 1.