| Acronym | Meaning |
| RSI | Reusable Surface Insulation |
| TVA | Thrust Vector Alignment |
| LCG | Liquid Cooled Garment |
| BTC | Binary Time Code |
| COQ | Certificate Of Qualification |
| SSRR | Station Set Requirements Review |
| MDCS | Maintenance Data Collection System |
| PC | Pitch Control |
| HTG | Heating |
| NIP | NNIP Network Input Processor |