| Acronym | Meaning |
 | FCCP | Firm Contract Cost ProPosal |
 | THERM | Thermal |
 | BFCS | Backup Flight Control System |
 | LL | Launch And Landing |
 | GIRD | Ground Integration Requirements Document |
 | BM | Basal Metabolism |
 | PAR | Planning Action Request |
 | SOTS | Suborbital Tank Separation |
 | LVLH | Local Vertical/Local Horizontal |
 | FA | Flight Critical Aft |