| Acronym | Meaning |
| IPS | IRU Inertial Reference Unit |
| LAT | Large Angle Torque |
| TVP | Test Verification Program |
| MMS | Modular Multiband Scanner |
| VSWR | Visual Standing Wave Ratio |
| OLSP | Orbiter Logistics Support Plan |
| MTEM | Mechanical Maintenance Test Equipment |
| MCT | Maximum Climb Thrust |
| SRM | Standard Reference Material |
| CC | Carbon-Carbon |