| Acronym | Meaning |
| GG | Gas Generator |
| ORD | Orbital Requirements Document |
| SD | Space Division (Rockwell) |
| FHS | Forward Heat Shield |
| CSCB | Contractor's Summary Cost Breakdown |
| SEPAR | Shuttle Electrical Power Analysis Report |
| PMT | Planning/ManagementTeam |
| MDS | Mission Development Simulator |
| G | IWG Ground Interface Working Group |
| SSUSP | Spinning Solid Upper Stage Project |