| Acronym | Meaning |
| MPTF | Main Propulsion Test Facility |
| HIGH | PressuHigh Pressure |
| ISPG | Institutional Support Planning GrouP |
| LF | Load Factor |
| REM | Roentgen Equivalent In Man |
| FPE | Functional Program Element |
| QAVT | Qualification Acceptance Vibration Test |
| FHS | Forward Heat Shield |
| LDR | LowData Rate |
| O&R | Overhaul And Repair |