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News Link • Transportation: Air Travel

Demonstration supersonic plane will fly at mach 2.2 by the end of 2019

• https://www.nextbigfuture.com, brian wang

The XB-1 will fly at mach 2.2 by the end of 2019. It is being built now.

Boom Aerospace is using new more efficient engines. Afterburners will not be needed to reach supersonic speed. Materials are lighter and improved. Inlet and other designs are more efficient.

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