North American X15 A Short History updated version

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=OHD1FE1ADPo

The North American X-15 was a hypersonic rocket-powered aircraft operated by the United States Air Force and NASA between 1959 and 1968, and one of the fastest planes ever. It still has the speed record for manned aircraft, at Mach 6.70. It also crossed over the edge of space multiple times. • SOURCE: • Wikipedia, https://en.wikipedia.org/wiki/North_A..., License: CC BY-SA 3.0 (https://creativecommons.org/licenses/...) - the text has been remixed and shortened • MEDIA: • Images and video in the Public Domain. • #ashorthistory

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