XS-1

[Foxbat]

In the USA, the Defence Advanced Research Projects Agency (DARPA) has selected Boeing to design its experimental unmanned spaceplane XS-1. Touted as fully re-usable and a tenth of the cost of conventional low-orbit travel and with speeds of between Mach 5 and 10 (without payload) being mentioned, could this be the beginning of a new future in routine space access?
Lockheed Martin drops out of US Navy missile competition

 

[tinkerdan]

I wasn't having much luck with that link.
DARPA Picks Design for Next-Generation Spaceplane

 

[Danny McG]

They are giving them numbers like XS-1?
Wow! I wonder if we'll one day get a XL-5?

 

[Foxbat]

They are giving them numbers like XS-1?
Wow! I wonder if we'll one day get a XL-5?

With a name like XL-5, it'd go like a real fireball