| Acronym | Meaning |
| TCS | Thermal Control System (Subsystem) |
| MDCS | Maintenance Data Collection System |
| IN. | Inch |
| NBF | Neutral Buoyancy Facility |
| GCOS | General Computer Operational System |
| TM | Technical Management |
| BME | Bench Maintenance Equipment |
| LES | Launch Equipment Shop |
| POST | Program To OPtimize Simulated Trajectories |
| TPF | Terminal Phase Finish |