National Aero-Space Plane
Key Issues Facing the Program Gao ID: T-NSIAD-92-26 March 31, 1992This testimony provides GAO's interim assessment of the National Aero-Space Plane Program and addresses the following four issues now confronting the program: Will the program include single-stage-to-orbit flight testing? How much will the program cost? How have changes affected the program's schedule? How much progress has been made in developing key technologies?