| Acronym | Meaning |
| SMU | SOft Mockup |
| PGA | Programmable Gain Amplifier |
| EVMU | Extra Vehicular Mobility Unit |
| MO | Molybdenum |
| MAIDS | Multipurpose Automatic Inspection And Diagnostic |
| STD | LStandard Distribution List (letter Denoting Which List |
| DECL | Direct Energy Conversion Laboratory (JSC) |
| MCC | Main Combustion Chamber |
| LPOT | Low-pressure Oxidizer Turbopump |
| ESP | Engine Service Platforms |