The hypersonic jet Waverider
Media playback is unsupported on your device

First test of hypersonic Waverider jet in May 2010

15 August 2012 Last updated at 10:42 BST

The US military has conducted a test flight of its hypersonic jet Waverider, aiming to reach Mach 6 (4,300mph; 6,900km/h) above the Pacific Ocean.

This archive footage, taken in May 2010, shows the jet in action.

Courtesy US Department of Defense and Pratt & Whitney