| Acronym | Meaning |
| FCS | Flight Crew System |
| STRCH | Stretch |
| PRCB | ProgramRequirementsChangeBoard |
| HPU | Hydraulic Power Unit |
| FVV | Facility Verification Vehicle |
| GNCIS | GNGNCISGN&C Integration Simulator |
| OGMT | Orbiter GreenwichMeanTime |
| LSSRC | Life Sciences Shuttle Research Centrifuge |
| DFI | Development Flight Instrumentation |
| MAA | Maximum Authorized Altitude |