| Acronym | Meaning |
| O/I | Outboard/inboard |
| WBS | Work Breakdown Structure (mil-std 881) |
| CMO | Configuration Management Officer |
| MTF | Modulation Transfer Function |
| HDC | Helicopter Direction Center |
| YSR | Sludge Removal Barge (non Self-propelled) (lighter) |
| BCS | Baseline Comparison System |
| OFIB | Oil Filter Impending Bypass |
| TPC | Training Path Chart |
| STHD | Stored Heading |