U.S. Air Foce an X-51

[vkritan]

[img]http://cdn.physorg.com/newman/gfx/news/hires/usafvehicleb.jpg[/img]

An experimental aircraft has set a record for hypersonic flight, flying more than 3 minutes at Mach 6 - six times the speed of sound.

[Anta Assamey]

[IMG]http://i325.photobucket.com/albums/k379/NFDB/Akkineni%20Nagarjuna%20-1/nag8.gif[/img]