| Acronym | Meaning |
| DPA | Data Processing Assembly |
| GDC | Gyro Display Coupler |
| EHR | Earned Hour Ratio |
| HD | Hydrogen Drain |
| ICOU | Inertial Coupling Data Unit |
| RBMT | Retrospective BibliographieS On Magnetic Tape |
| JETS | Joint Electronics Type (Designation) System |
| LSU | International System Of Units |
| LOB | Left Outboard |
| H | AlH AlHazardous (Task Classification) |