| Acronym | Meaning |
| GS | Ground Speed |
| CIS | Communication Interface System |
| VAA | Viewpoint Adapter Assembly |
| PMD | Palmdale (TACAN Station) |
| GDSM | Ground Data Systems Manager |
| VSA | Verification Site Approval |
| RCVY | Recovery |
| SSS | Subsystem Segment |
| VCD(S) | Vapor Compression Distillation (Subsystem) |
| CRSI | Ceramic Reusable Surface Insulation |