http://psk.blog.24heures.ch/archive/2013/05/03/le-x-51a-vient-d-atteindre-mach-5-1.html
Scramjet voir http://en.wikipedia.org/wiki/Boeing_X-51
Statoréacteur, ramjet voir http://en.wikipedia.org/wiki/Ramjet
Rappel sur le X-15 ? Voir http://en.wikipedia.org/wiki/North_American_X-15
As of 2013, the X-15 holds the official world record for the fastest speed ever reached by a manned aircraft. Its maximum speed was 4,520 miles per hour (7,274 km/h).[1]
