| Acronym | Meaning |
| OAS | Orbiter Aeroflight Simulator |
| SCAN | Selected Current Aerospace Notices |
| RE&T | Research Engineering And Test |
| CIS | Communication Interface System |
| FFM | Free-Flying (Experiment) Module |
| BCU | Bus Control Unit |
| SLP | ERNO Spacelab Program Office |
| HW | Headwind |
| DRS | Digital Range Safety |
| PTD | Provisioning Technical Documentation |