| Acronym | Meaning |
| D | LSC Data Link Transmission Repeater |
| ORB | 1 -g Orbiter One-g (trainer) |
| CPF | Cost Per Flight |
| MP | Mission Planner |
| BP | C&DSCommand And Data Simulator |
| GND | GrGNDGround |
| CTP | Communications Timing Procedure |
| P-TUBE | Pneumatic Tube |
| TV | Television |
| GTI | Ground Test Instrumentation |