| Acronym | Meaning |
| MPB | Maintenance Parts Breakdown |
| LH2 | Liquid Hydrogen |
| MOPI | Max Rate Output Initiator |
| S/C | Splitter/Combiner |
| SSR | System Requirements Review |
| PFM | Pulse Frequency Modulation |
| OMDRI | Operations And Maintainability Data Record |
| STIRD | SAIL Test Implementation Requirements Document |
| MLG | Main Landing Gear |
| L/T | Load Test |