| Acronym | Meaning |
 | CS/FP | Contractor Support/full Provisioning |
 | SSDD | System/segment Design Document |
 | PROP | Proprotor |
 | PO | Ambient Pressure |
 | SIMSYS | Simulation System (software) |
 | SHSC | Safety Hazard Severity Code |
 | SDIO | Strategic Defense Initiative Office |
 | CLASS | Comprehensive Lsa Automated Support System |
 | MDU | Multiplexer Decoder Unit |
 | PSDP | Preliminary System Design Plan |