| Acronym | Meaning |
| DIF | Difference |
| FHF | First Horizontal Flight |
| CTR | Contract Technical Representative |
| LSU | International System Of Units |
| EDR | Engineering Design Review |
| SOS | Source Of Supply |
| DV | Designee For Verification |
| BP | Capacitance |
| MILA | Merritt Island Launch Area |
| SOCH | Spacelab Orbiter Common Hardware |