| Acronym | Meaning |
| OPB | Oxidizer Preburner |
| FCIT | First Computer Interface Tester |
| EOW | Energy Over Weight |
| CPE | I Computer Program End Item |
| RPS | Record And Playback System (Subsystem) |
| M50 | Mean Of 1950 (Coordinate System) |
| SCIU | Selector Control Interface Unit |
| LC | Information Center |
| VTP | Verification Test Plan |
| OMP | Operations And Maintenance Plan |