| Acronym | Meaning |
| R/O | Rollout |
| EDU | Engineering DeveloPment Unit |
| IPS | IRIG-BInterrange Instrumentation Group B |
| PG | Pressure Gage |
| MAC | Maintenance Advisory Committee |
| HIPO | Hierarchical Input/Process Output |
| CST | Contract Supplemental Tooling |
| CMOS | Complementary Metal Oxide Silicon |
| GSFC | Goddard Space Flight Center (Greenbelt |
| HQR | Handling Qualities Rating (Cooper-Harper) |