| Acronym | Meaning |
 | PDRM | Payload Deployment And Retrieval Mechanism |
| SDF | Safing And Deservicing Facility |
| FSK | Frequency Shift Keyed (Keying) |
| ESA | Engineering SuPPort Assembly |
| SP | Spare |
| CCMS | Checkout |
| ILC | Initial Launch Capability |
| VSA | Variable Stability Aircraft |
| OP | Oxygen Purge |
| PM | Performance Monitor |
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