| Acronym | Meaning |
| IN | Inlet |
| PACC | Problem Action Control Center |
| MEC | Main Engine Controller |
| UPS | Uninterruptible Power System |
| DML | Developmental Instrumentation MDM-Left |
| FCP | Firm Cost Proposal |
| C | OfF Construction Of Facilities |
| OMRSD | O&M Requirements And Specifications Documentation |
| LL | Launch And Landing |
| ETA | Explosive Transfer Assembly |