| Acronym | Meaning |
| HPOTP | High Pressure Oxidizer Turbopump |
| DARA | Deutsche Agentur Fuer Raumfahrtangelegenheiten |
| FFCC | Free-Flyer Control Centre |
| NSA | National Security Agency |
| HOTOL | HOrizontal TakeOff And Landing |
| NPO | Scientific Production Organization |
| ESOC | European Space Operations Centre |
| SL-J | SpaceLab Japan |
| WR | Western Range |
| MACS | Modular Attitude Control System |