That’s a shame. Do you keep up with the developments on the subject? Are we any closer today than we were 10 years ago?
U.S. Army Tests Secret Hypersonic Weapon
Published November 17, 2011 / TechNewsDaily
http://www.foxnews.com/tech/2011/11/17/us-army-tests-secret-hypersonic-weapon/
USAF X-51A Waverider
I follow it a little. First, the USAF has two programs related to the scramjet and fuels that have been successful. They got a scrammie to work up to Mach 10. We could have begun testing the NASP with a Mach 10 scramjet. Second, the developments in the private sector will easily overtake government work in the next 10 years and probably do what NASP was supposed to do anyway.