Paris Air Show: Supersonic plans to rival Concorde

Several projects at the Paris Air Show are competing to bring supersonic travel to paying customers.

    Fifteen years after the last flight of the Concorde, there are new plans to build supersonic passenger jets.

    And with advanced materials and technology, engineers say they could be cheaper and cleaner.

    Al Jazeera's Natacha Butler reports from the Paris Air Show.


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