| Acronym | Meaning |
 | SIS | Shuttle Interface Simulator |
| OVCO | Operational Voice Communication Office |
| OTY | Quantity |
| DUPLX | Duplex |
| HFO | High Frequency Oscillator |
| EBD | Eyeballs Down (+GZ) |
| CST | Crew Systems Trainer (One-G Trainer) |
| DOC | Department Of Commerce |
| MIPS | Merritt Island Press Site |
| LDMK | Landmark |
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