High flying frequent travelers have been lamenting the end of Concorde flights more than ten years ago, and wondering if true high speed air travel will ever return.

Well, never say never. There are a number of projects on the drawing board.

Airbus, which built the Concorde, is developing a hypersonic plane.

It just patented an aircraft that can cruise at Mach 4, or about 3,400 miles per hour.

This is insanely fast—4.5 times the speed of sound.

At that speed, you would be able from New York to Los Angeles in 43 minutes.

Elon Musk is also working on his hyperloop pneumatic electromagnetic tube to speed you from LA to New York in 3.5 hours.

Both projects are moving forward, but not at warp speed. It could be at least ten years before these projects might—I repeat might—be operational.

But the good news is that they’re working on it.

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