| Acronym | Meaning |
| IDA | Institute For Defense Analysis |
| SDBL | Supportability Design Baseline |
| TDMP | Training Device Maintenance Plan |
| SEP | Software Enhancement Proposal |
| NRAC | Nato Requirements & Criteria |
| IECS | Intergrated Environmental Control System |
| FCC | Federal Communication Commission |
| SCST | Submarine Combat System Trainers (21a Series) |
| XVT | X Virtual Terminal |
| SDC | Super Data Coder |