| Acronym | Meaning |
![](file.png) | OPF | Orbiter Processing Facility |
![](file.png) | SPO | SYstem Program Office |
![](file.png) | HFC | Hydraulic Flight Control |
![](file.png) | TRSD | Test Requirements Specification Document |
![](file.png) | LST | Liquid Storage Tank |
![](file.png) | DD&CS | Dedicated Display And Control Subsystem |
![](file.png) | CWG | Constant Wear Garment |
![](file.png) | VCB | Vertical Location Of The Center Of Buoyancy |
![](file.png) | MCDU | Multifunction CRT Display Unit |
![](file.png) | ED | Edit |