"SpaceShipTwo could be single stage to SUBorbit"

On 5/14/2010 7:19 AM, Jeff Findley wrote:
NASP was a research playground which was producing little to no flight
hardware, and certainly wasn't producing flying testbeds (i.e. real X-planes
testing real engines on real test flights). Killing a research program
which was sucking up billions of dollars without producing any actual flown
hardware was a prudent move, IMHO.

You can't be really sure it didn't produce some form of flight test
hardware, though probably fairly small and unmanned in design.
The program was then (and still is) largely classified in nature due to
the obvious military applications of the technology it would develop:
http://www.fas.org/irp/mystery/nasp.htm

Pat