| Acronym | Meaning |
| DLC | Direct Lift Control |
| MR | Mixture Ratio |
| MTTFF | Mean Time To First Failure |
| POL | Petroleum, Oil, And Lubricant |
| S | Second (Astronomical Tables) |
| MM | Major Mode Or Mass Memory |
| IPDR | Incremental Preliminary Design Review |
| CCB | Change Control Board |
| GDA | Gimbal Drive Actuator/Assembly |
| EMS | Engineering Master Schedule |