| Acronym | Meaning |
| ERV | Expiratory Reserve Volume |
| MMCA | Mid Motor Controller Assembly |
| VC | Vector Character |
| RSI | Reusable Surface Insulation |
| FTE | Flight Test Engineer |
| IDD | Interface Definition Document(s) |
| SEG | Segment |
| TTCA | Thrust Translation Controller Assembly |
| FCI | Flight Control Indicator |
| TV | Television |