| Acronym | Meaning |
| DIS | Disagree |
| VGOR | Vehicle Ground Operation Requirements |
| PORB | Production Operations Review Board |
| ORB | Order |
| FAR | Federal Aviation Regulation |
| RDF | Radio Direction Finder |
| RT | Real Time (R/T Preferred) |
| TC | Test Conductor (Controller) |
| FCOS | Flight Control Operational Software |
| CMPRT | Compartment |