X-33 Advanced Technology Demonstrator

ED98-44831-4 An artist's conception of the X-33 in flight, with the aerospike engine firing. The X-33 demonstrator was designed to test a wide range of new technologies including the aerospike engine, that would be used in a future single-stage-to-orbit reusable launch vehicle called the VentureStar. Due to technical problems with the liquid hydrogen tank, however, the X-33 program was cancelled in February 2001. 1998 NASA Photo
NASA Identifier: 353277main_ED98-44831-4