| Acronym | Meaning |
| OF | Oxidizer-to-Fuel Ratio |
| RM | Right Mid |
| S/V | SuPply Valve |
| NCS | Nutation Control System |
| VGX | Velocity To Be Gained (Body X-Axis) |
| ACRV | Assured Crew Return Vehicle |
| PRD | PersonalRadiation Dosimeter |
| KIAS | Knc)ts Indicated Airspeed |
| RMRS | Repeatable Maintenance And Recall System |
| PROM | Programmable Read-Only Memory |