| Acronym | Meaning |
| GPA | General Purpose Amplifier |
| S/AC | Stabilization/Attitude Control |
| TVAR | Test Variance |
| SP&S | Special Processes And Sequencing |
| GCIL | Ground Control Interface Logic |
| MFTAD | Master Flight Test Assignment Document (JSC) |
| QSA | Qualification Site Approval |
| BT | Burn Time (Engine) |
| MDC | Mission Duty Cycle |
| TL | Transient Load |