| Acronym | Meaning |
| MERL | Materials Engineering Research Laboratory |
| ICAO | International Civil Aviation Organization |
| P/L | Purchased Labor |
| PDR | Preliminary Data Requirements |
| KCRT | Keyboard Cathode RaY Tube |
| TS | Test Site |
| CPC | Characteristics Properties Code |
| DBGMP | DBIUData Bus Interface Unit |
| RPTA | Rudder Pedal Transducer Assembly |
| DP/DT | Delta Pressure/delta Time |