11.   But as time passed it became clear that the breakdown of the ozone layer by supersonic aircraft had been grossly overstated.

12.   It was the first fatal crash for the needle-nosed supersonic aircraft, and all other Concordes were grounded.

13.   It was the first fatal crash for the needle-nosed supersonic aircraft.

14.   Meanwhile, India is also developing an indigenous engine for the LCA, which would be the first supersonic aircraft built in India.

15.   Meanwhile, India is also developing its indigenous Kaveri engine for the LCA, which would be the first supersonic aircraft built in India.

16.   The pilot of a Concorde jet abandoned takeoff at Heathrow Airport on Friday after the supersonic aircraft experienced engine trouble.

17.   Transport Minister Jean-Claude Gayssot said that a new generation supersonic aircraft could be a European or even a world venture that would include the United States.

18.   Witnesses said the supersonic aircraft was not able to gain sufficient altitude before it crashed.

19.   Boeing and McDonnell Douglas have collaborated on other projects and are currently members in an international group studying next-generation supersonic commercial aircraft.

20.   The collection included many original hand-drawn designs for the supersonic aircraft, each signed by Concorde test pilot Brian Trubshaw.