It may look like a vehicle the Thunderbirds would travel in, but in fact this experimental aircraft could be the future of long haul flights.

It uses a revolutionary 'scramjet' engine that allows it to travel at hypersonic speeds.

Tomorrow, it will be dropped from a B52 bomber in its latest test.

The craft, called the X-51A Waverider, is currently being prepared at Edwards Air Force Base in the Mojave Desert.

Tomorrow, it will take part in a key test.

Attached to a B-52 bomber's wing, it will be taken from Edwards to about 50,000 feet over the Pacific Ocean near Point Mugu.

there' it will be dropped and the engines fired. The entire mission will last just 300 seconds, but will be the longest the craft has ever flown for.

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