Supersonic jets will return—for good this time

the PopMechanics Brain Trust : scientist
The limit on supersonic flight is not one of engineering but of economics. Aircraft that break the speed of sound guzzle fuel, so new jet engines will have to be efficient. One solution—the pulse detonation engine, which uses a fuel—air mixture—was tested at the Mojave Air & Space Port in 2008. By 2030 a successor will power that fabled 2-hour hop from New York to London

Popular mechanics, (2012) "110 Predictions For the Next 110 Years", [online], Available: