"John Doe" wrote in message
s.com...
Not to belittle the great achievement made yesterday, but are the SS1
concept
and materials usable for real space flight ? Or is this a design that is
really limited to the Xprize mission ?

From what I heard, it only reached top speed of about Mach 3. Is that
correct
? So from a re-entry perspective it is quite far from orbital re-entry.

I don't think Enterprise ever went that fast, yet it is still called a Space
Shuttle.