| Acronym | Meaning |
| SDGW | Structural Design Gross Weight |
| PDS | Power Demand Signal |
| ECL | Engine Control Lever |
| F/D | Flight Director |
| SSAG | Auxiliary Submarine |
| SPDR | Software Preliminary Design Review |
| DBDD | Data Base Design Document Udi-e-21250b/mod |
| MDTUM | Mean Down Time For Unscheduled Maintenance |
| VX | Best Angle Of Climb Speed |
| DCMC | Defense Contract Management Command |