| Acronym | Meaning |
| FCW | Format Control Words |
| I | ECM Induced Environment Contamination Monitor |
| HBT | Heflex Bio-Engineering Test |
| MACH | Velocity Relative To The Speed Of Sound |
| CAP | Crew Activity Plan |
| GSS | Ground Support System |
| EDS | Electrical Distribution System |
| VTP | Vehicle Test Plan |
| VE | Equivalent Velocity |
| SEI | SYstem Engineering Groundrule |