| Acronym | Meaning |
| TRA | Turnaround Requirements Analysis |
| RAI | Rofl Attitude Indicator |
| PTA | Positest Analysis |
| FTA | Flight Test Article |
| EXH | Exhaust |
| IPACS | Integrated Power And Attitude Control System |
| RCCA | Rough Combustion Cutoff Assembly |
| UBIC | Universal Bus Interface Controller |
| GCE | Ground Checkout Equipment |
| TSRA | Total System Requirements Analysis |