| Acronym | Meaning |
 | SRB | Solid Rocket Booster |
| PECP | Preliminary Engineering Change Proposal |
| ECMA | European Computer Manufacturer's Associations |
| TWT | Traveling Wave Tube |
| SDR | Software Discrepancy Report |
| IHADSS | Integrated Helmet And Display Sighting System |
| AVT | Automatic Video Tracker |
| SCTR | Sector |
| MTBUR | Mean Time Between Unscheduled Removal |
| HMS | Helmet Mounted Sight |
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