| Acronym | Meaning |
| EC | Essentiality Code |
| SPC | Software Productivity Consortium |
| EOSS | Engineering Operational Sequencing System |
| CDPR | Compressor Discharge Pressure Right Engine |
| YAG | Miscellaneous Auxiliary (self-propelled)(misc) |
| CALS | Computer-aided Acquisition & Logistics Support |
| PSIC | Provisioning System Identifier Code |
| IOC | Initial Operational Capability |
| VTOL | Vertical Takeoff And Landing |
| HWCI | Hardware Configuration Item |