Nevada-based Aerion Corporation is championing the comeback of supersonic air travel in the form of a new executive jet.

The company says it has already received $US4 billion in orders for the Aerion Supersonic Business Jet, which it expects to be launched in 2014.

At its top speed, the company says the jet will shave about three hours off the flight time between Paris and New York.

In theory, you could take-off from Paris at 8am and touch down in New York in time for a breakfast meeting.

Cessna is also building a jet called the Cessna Citation X. It is claimed to be the fastest civilian aircraft in the sky, cruising just shy of the sound barrier at Mach .92.