Martin X-23 PRIME
AMERICAN EXPERIMENTAL AIRCRAFT
Martin-Marietta X-23; Martin Marietta X-23; Martin-Marietta X-23 PRIME; X-23 PRIME; Martin Marietta X-23 PRIME; Precision Reentry Including Maneuvering reEntry; SV-5D
The Martin X-23A PRIME (Precision Reentry Including Maneuvering reEntry) (SV-5D) was a small lifting-body re-entry vehicle tested by the United States Air Force in the mid-1960s. Unlike ASSET, primarily used for structural and heating research, the X-23A PRIME was developed to study the effects of maneuvering during re-entry of Earth's atmosphere, including cross-range maneuvers up to from the ballistic track.