| Acronym | Meaning |
| ADI | Attitude Director Indicator |
| PIMA | Plug-in Module Adapter |
| DTR | Data Terminal Ready |
| HG | Inches Of Mercury |
| OSI | Open Systems Interconnection (iso Standard) |
| QDMA | Quantitative Debris Monitor Mission Alert Status |
| MSSS | Model 901 Simulation Support Software |
| MRAALS | Marine Remote Area Landing System |
| PY | Program Year |
| METS | Mobile Electronic Threat Simulator |