| Acronym | Meaning |
| RS | Rawinsonde |
| UUT | Unit Under Test |
| PSS | Propulsion Support System |
| PVT | Private |
| Q | Pitch Rate (Angular Rate) |
| IPS | IRL Initiating Reference Letter |
| PDRS | Payload Deployment And Retrieval System(s) |
| CSC | Computer Sciences Corporation |
| FMSP | FM Signal Processor |
| DOL | Discrete Output Low |