| Acronym | Meaning |
| ATMS | Automatic Text Management System |
| EDR | Equivalent Direct Radiation |
| EED | Electro-explosive Devices |
| CW | Continuous Wave |
| CDIL | Cumulative Damage Index Left Engine |
| PRI | Primary |
| EAU | Extended Arithmetic Unit |
| LWR | Lower |
| UDI | Unique Data Item |
| IDS | Interface Design Specification Udi-e-21403/mod |