| Acronym | Meaning |
| SRCB | Software Requirements Control Board |
| EL | MECH Electromechanical |
| IOB | InPut/Output Box |
| MID | Midbody |
| QSM | Quarter Scale Model |
| DIFF | Differential |
| FED | Flight Events Demonstration |
| ESCA | Electron Spectroscopy For Chemical Analysis |
| CPC | Characteristics Properties Code |
| SFC | Specific Fuel Consumption |