| Acronym | Meaning |
| VSD | Vertical Situation Display |
| UFD | User File Directory |
| LRF | Liquid Rocket Fuel |
| PIND | Particle Impact Noise Detection |
| HTPB | Hydroxyl Terminated Polybutadiene (Propellant) |
| ATC | Absolute Time Command |
| BMA | Body-Mounted Accelerometer |
| LEC | Lockheed Electronics Company |
| MPTA | Main Propulsion Test Article |
| SDP | Shuttle Data Processor |