| Acronym | Meaning |
| SIP | SYstems Integration Office |
| OPT | OPerational Pressure Transducer |
| SDF | System Development Facility (Breadboard) |
| SPL | Serialized Parts List |
| DP | Double Precision |
| SCA | Shuttle Carrier Aircraft |
| PLACE | Equipment |
| M | LGS Microwave Landing Guidance System |
| V/M | Velocity Meter |
| SCARS | Sneak Circuit Analysis Report Summary |