REMEMNER THERE IS NO AROARA HYPERSONIC AIRCRAFT!! PER ALL THE MILITARY REBUTTALS. 


DARPA's Hypersonic GliderCredit: DARPA artist's conceptThe DARPA Falcon Hypersonic Technology Vehicle (HTV)-2 is a prototype that launches on a rocket, reaches suborbital space and then re-enters Earth's atmosphere at speeds of about Mach 20. The vehicle is part of DARPA's Global Strike test program to check technologies for a global bomber.