| Acronym | Meaning |
 | LSCA | Logistics Support Cost Analysis |
| DEW | Distant Early Warning |
| GLS | Ground Launch Sequence (Sequencer) |
| SF | Signaling Frequency |
| OFI | Operational Flight Instrumentation |
| COS | Cosine |
| OLF | Orbiter Landing Facility (now SLF) |
| SPA | Signal Processor Assembly |
| FDM | Flight Data Manager |
| SSUS | Spinning Solid Upper Stage |
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