| Acronym | Meaning |
![](file.png) | MTGW | Maximum Total Gross Weight |
![](file.png) | OA | Office Of Applications (now OSTA) |
![](file.png) | MIPR | Military Intergovernmental Purchase Request |
![](file.png) | MOD | Modification |
![](file.png) | IPS | ISD Instructional Systems DeveloPment (USAF) |
![](file.png) | LH2 | Liquid Hydrogen |
![](file.png) | SSCSP | Space Shuttle Crew Safety Panel |
![](file.png) | DDS | Data Display System |
![](file.png) | PF | PayloadForward |
![](file.png) | SMD | Spacelab Mission DeveloPment |