| Acronym | Meaning |
 | MOPS | Mission Operations Planning System |
 | RDR | Rudder |
 | CAB | Civil Aeronautics Board |
 | TFU | Test Facility Utilization |
 | CDI | Course Deviation Indicator |
 | RAG | Reusable Agenda |
 | VFO | Variable Frequency Oscillator |
 | TAO | Trans-Atlantic Abort |
 | SOA | RShuttle Orbital Applications And Requirements |
 | TACO | Test And Checkout Operations |