| Acronym | Meaning |
 | ECA | Electronics Control Assembly |
| WSTF | White Sands Test Facility |
| KATS | Kennedy Avionics Test Set |
| HSI | Horizontal Situation Indicator |
| FD | WMR Food Warmer |
| FA | Flight Critical Aft |
| TV | Thrust Vector |
| SD | Specification Document |
| VFO | Variable Frequency Oscillator |
| OIS | Operational Intercommunication System |
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