"Andrews Space, Boeing and Lockheed Martin have been awarded
contracts
to design, fabricate and test systems under the reusable booster
system
flight and ground experiments (RBS-FGE) programme. The contracts,
awarded by the US Air Force Research Laboratory in Dayton, Ohio, are
worth
up to $250 million each.

RBS-FGE is meant to mature technologies for a fully reusable vertical
take-off,
horizontal landing first stage booster system, using a liquid oxygen-
fuelled
combined cycle engine. The winged booster will loft the launch vehicle
to the
point where a second, expendable stage can fire and put the payload in
orbit,
while the first stage booster will return and land on a runway.

Limited flight testing is due to begin by 2015."

See:

http://www.flightglobal.com/news/art...tracts-365835/