| Acronym | Meaning |
| STR | System Test Review |
| CSD | LCharles Stark Draper Laboratory (MIT) |
| P-TUBE | Pneumatic Tube |
| HCF | High Cycle Fatigue |
| MDM | Multiplexer/demultiplexer |
| BCRD | Basic Consolidated Requirements Document |
| SPDB | Subsystem Power Distribution BC)x |
| KB | Kilobit |
| FCPS | Fuel Cell Power System (Subsystem) |
| T/W | Thrust Weight |