| Acronym | Meaning |
| DIFAR | Directional Frequency And Ranging (asw) |
| TUSS | Trainer Unique Subsystem Units |
| DT | Development Testing |
| RDR | Radar |
| AFPRO | Air Force Plant Representative Office |
| TAEAS | Tactical Asw Environmental Acoustic Support |
| NSCCA | Nuclear Safety Cross-check Analysis |
| SLWT | Side Loading Warping Tug (landing Craft) |
| CHMS | Copilot Helmet Sight System |
| UTIL | Utility |