Supersonic

The space agency is using F/A-18 fighter jets off the coast of Texas to simulate the sound of its quiet supersonic X-plane.

GE and Aerion reveal the engine that’ll power the supersonic AS2 to Mach 1.4 when it flies in 2023.

The low-boom aircraft could be certified to operate in areas where noise restrictions normally prevent supersonic flight.

Ultimately, the agency wants to prove the viability of the technology so it can be adopted by commercial manufacturers.

We look at audacious airborne concepts that might revolutionizes the way we get around . . . someday.