| Acronym | Meaning |
| URT | Universal Remote Terminal |
| TBD | To Be Determined |
| ATP | Acceptance Test Procedure |
| GRDS | Generic Radar Display System |
| PMDB | Project Master Data Base (trw Ir&d Project Name) |
| WG | Wire Gage |
| IV&V | Independent Verification And Validation |
| RPU | Rotor Phasing Unit |
| NCDT | Non-chargeable Down Time |
| TDF | Tactical Digital Facsimile |