| Acronym | Meaning |
| MEAR | Maintenance Engineering Analysis Request |
| SDAF | Source Data Automatic)n |
| VCU | Video Control Unit |
| S | Second (Astronomical Tables) |
| CFP | Conceptual Flight Profile |
| BFC | Backup Flight Control |
| VU | Vehicle Utility |
| COS | Carry-on Oxygen System |
| CTR | Contract Technical Representative |
| ESMC | Eastern Space And Missile Center (formerly AFETR) |