This is an artist's interpretation of a future launch complex for third generation propulsion reusable launch vehicles such as the X-33. The X-33 is a sub-scale technology demonstrator prototype of a Reusable Launch Vehicle (RLV), with a vertical take off / horizontal landing (lifting body) concept, which was manufactured and named as the Venture Star by Lockheed Martin. The X-33 program was cancelled in 2001.