| Acronym | Meaning |
| ECS | Engineering Change Support |
| TILT | Tiltaxis |
| ICAPS | Integrated Command Anti-submarine Warfare Diction System |
| CPL | Consolidated Procurement Directive (ntec-3930/27) |
| ENG | Engine |
| TSI | Tactical Situation Indicator |
| PTT | Part Task Trainer |
| CAEIU | Conversion Actuator Electrical Interface Unit |
| PTA | Proposed Technical Approach |
| MRD | Military Requirements |