New Launchers

X-33 (suborbital): NASA has selected Lockheed Martin to develop and test fly the unmanned sub-orbital flight test vehicle in 1999, which may lead to the development of a new manned/unmanned re-usable SSTO VentureStar launch vehicle (RLV) to replace the Space Shuttle, capable of flying 18,000kg to LEO, starting in 2005. The new vehicle would not be designated the X-33.

Source: Flight International