| Acronym | Meaning |
 | ESD | Electrostatic Discharge |
| ESGN | Electrically Suspended Gyro Navigator (an/wsn-3(v)) |
| ESM | Electronic Support (surveillance) Measures |
| ESS | Environmental Stress Screening |
| ESS | Essential |
| ESTG | Easting |
| ETA | Estimated Time Of Arrival |
| ETE | Estimated Time Enroute |
| ETI | Elapsed Time Indicator |
| EVCS | External Voice Communication System |
| EW | Electronic Warfare |
| EWJWG | Electronic Warfare Joint Working Group |
| EWR | Electronic Warfare Range (2d2) |
| EXEC | Executive Subsystem |
| EXPS | Expanding Squares |
| EXT | Extend |
| EXT | Exterior |
| F&PM | Fuel And Power Management |
| F/C | Flight Control |
| F/D | Flight Director |
| FAA | Federal Aviation Agency |
| FAB | Fabrication |
| FAB | Forward Avionics Bay |
| FABITAL | Fadec Fail Bit, Channel A Left Engine |
| FAC | Facility Requirements Code |
| FACTS | Flip Augment Cobra Tow Sight |
| FAD | Funding Authorization Document |
| FADEC | Full Authority Digital Engine Control |
| FADECAL | Fadec, Channel A, Left Engine |
| FADECAR | Fadec, Channel A, Right Engine |
| FADECBL | Fadec, Channel B, Left Engine |
| FADECBR | Fadec, Channel B, Right Engine |
| FADIGAL | Fault Diagnostics, Channel A, Left Engine |
| FADLIM | Fadec On Limit |
| FAEWS | Fleet Airborne Electronic Warfare System |
| FAIL | Failure |
| FAIR | Financial Accounting & Inventory Record |
| FALT | Final Altitude |
| FANFARE | Navy Torpedo Countermeasures Sys For Ships |
| FAR | Federal Acquisition Regulation |
| FAR | Federal Aviation Regulation |
| FARECONRON | Fleet Air Reconnaissance Squadron |
| FASO | Fleet Aviation Support Office |
| FASOTRAGRUPAC | Fleet Aviation Specialized Operatonal Training Group Pacific |
| FASP | Facility For Automated Software Production |
| FAT | File Access Table |
| FAT | Final Acceptance Trial |
| FAT | First Article Testing |
| FAT | Free Air Temperature |
| FBC | Furnished By Contractor |
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