| Acronym | Meaning |
| FAC | Facility Requirements Code |
| TIP | Trainer Improvement Program |
| OOD | Object-oriented Design |
| TUNA | Tunable Attribute Display Sub-system |
| PLC | Programming Language Committee |
| IUS | Interim (inertial) Upper Stage |
| NORPAX | North Pacific Experiement |
| DNS | Doppler Navigation Sensor |
| DFR | Digital Flight Recorder |
| NAC | Naval Avionics Center (indianapolis) |