| Acronym | Meaning |
| GAFC | General Airframe Change (tdc 71) |
| JVX | Joint Services Vertical Lift Aircraft Experimental |
| PHIGS | Programmer's Hierachical Interactive Graphics System (iso) |
| TAD | Temporary Additional Duty |
| VL | Vertical Landing |
| AGR | Air To Ground Ranging |
| FFIB | Fuel Filter Impending Bypass |
| PCL | Post Conference List |
| APADE | Automated Purchase And Accounting Data Entry |
| FDIGBL | Fault Diagnostics, Channel B Left Engine |