[LS]

When the USAF and NASA pulled the plug on the National Aerospace Plane in 1995, we had serious concerns about the scram. We HAD the fuel (H2); we HAD the ultra-advanced materials (carbon-carbon and other classified materials); we HAD the computational fluid dynamics (CFD) to computer test this stuff---but the scram just was not developing "thrust over drag."

This is moving much faster than NASA, for one, thought, and I wouldn't be just a little surprised if the PRIVATE Ruttan-based group didn't add a little "incentive" for the government scientists to solve a few problems.

[KateatRFM]

These things have been test flown over Georgia for years. The Atlanta Journal had a story about it back in the mid-90s including a sketch made by a reporter who happened to see the thing and didn't have a camera.