| Acronym | Meaning |
 | TACNAV | Tactical Navigator |
| IMC | Instrument Meteorological Conditions |
| LHD | Amphibious Helicopter Assault Carrier Dock |
| VERT | Vertical |
| HPDU | Hydraulic Power Drive Unit |
| YF | Covered Lighter (self-propelled) |
| PRISM | Portable Reuseable Integrated Software Nodules |
| SPM | Software Programmers Manual |
| CRISD | Computer Resources Integrated Support Document |
| OSI | Open Systems Interconnection (iso Standard) |
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