| Acronym | Meaning |
| MRF | Maximum Retarding Force |
| HRSI | High Temperature Reusable Surface Insulation |
| OFT | Orbital Flight Test |
| CCP | Configuration Change Point |
| T | Thermostabilized |
| G-11 | Gulfstream 11 (Shuttle Training Aircraft) |
| SCF | Sequenced Compatibility Firing |
| PER | Period |
| SIL | Systems Integration Laboratory |
| MTA | Major Test Article |