| Acronym | Meaning |
| GFRP | Glass Fiber Reinforced Plastics |
| RTCC | Real-Time Command Controller |
| INSTRUM | Instrumentation Subsystem |
| PLACE | Position Location Aircraft Communications |
| TCN | Test Change Notice |
| SDF | System Development Facility (Breadboard) |
| TZ | Translation Hand Controller Z-Axis Direction |
| CE | Control Element |
| CRR | Computer Run Report |
| PTR | Printer |