| Acronym | Meaning |
| RALT | Radar Altimeter |
| SDP | Software Development Plan |
| TP | True Position |
| TSGP | Test Sequence Generator Program (ESTEC) |
| DD | Mechanical And Facilities Engineering (KSC DE Dir.) |
| IPS | Inner Roll Gimbal |
| PD | Procurement Drawing |
| CMAO | Contract Management Assistance Officer |
| PGA | Pressure Garment Assembly |
| ETD | Electrical Terminal Distributor |