| Acronym | Meaning |
| RMI | Radio Magnetic Indicator |
| SSMECA | SSM E Controller Assembly |
| SRS | Software Requirements Specification |
| HMC | Hypergolic Maintenance And Checkout |
| BP | C/FCenter Frequency |
| CM | Crew Module |
| MILSTRIP | Military Standard Requisition And Issue Procedure |
| RJD | Reaction Jet Device |
| MAPS | Measurement Of Air Pollution From Satellites |
| IPS | Integral Rocket Ramiet |