ALPHA

The Alpha Project is a fully reusable two stage vehicle proposed by World Aerospace, Inc. The upper stage, dubbed the Alpha CX-1A SRV (Space Reusable Vehicle) is a three-person spaceplane designed to take one pilot and two mission specialists into space. Intended to use off-the-shelf technology where possible, the CX-1A may also be launched from the ground as a suborbital spacecraft.
Interestingly, three potential configurations for the lower stage (or launch vehicle) are being proposed as development proceeds:
The first is an Air Launched Horizontal Landing (ALHL) solid rocket booster RLV derived from the Pegasus by Orbital Sciences Corporation. This vehicle will carry the CX-1A upper stage for the flight test phase.
The second is a HTOL liquid rocket flyback booster RLV. This vehicle will carry the CX-1A in the piggyback configuration and is ultimately expected to evolve into the final RLV lower stage as the design matures.
The third is a VTOL rocket booster option. In this configuration the CX-1A will be launched atop currently available commercial launch vehicles such as the Boeing Delta IV-M EELV, the LMCO Atlas V 500, and an RLV based on the Thor (a former USAF ICBM)
World Aerospace, Inc. is targeting the Alpha series of space planes for orbital and suborbital space tours, as well as crew transfer, small satellite launches, and emergency rescue.