| Acronym | Meaning |
| NCDT | Non-chargeable Down Time |
| SCR | Silicon Control Rectifier |
| ASM | Actuator Signal Management |
| AFT | After |
| PDD | Program Design Description |
| E2 | Exponential Elevation Display |
| VOR/ILS/MB | Vhf Omni Range/instrument Landing System/marker Beacon |
| SEAMIS | Navsea Acquisition Management Information Systems |
| DTL | Data-time Logged |
| MEPS | Modification Engineering Program Status |