| Acronym | Meaning |
| HFTF | Horizontal Flight Test Facility |
| LL | Lower Limit |
| OST | Operations Support Team (GSFC) |
| SP-OPI | OPerations Planning And Integration Office (KSC |
| SCA | Schedule Change Authorization |
| THC | Translational Hand Controller |
| EFCS | Earth Fixed Coordinate System |
| OH | Overhaul |
| HB | Handbook |
| RRL | Rudder Reference Line |