| Acronym | Meaning |
 | ICC | Interstate Commerce Commission |
 | SERVO | Servomechanism |
 | ERPM | Engineering Requirements And Procedures Manual |
 | HID | HIM Interface Distributor |
 | FPM | Feet Per Minute |
 | SBA | Structure Borne Acoustic |
 | IVL | Lntervatometer |
 | ELV | Expendable Launch Vehicle |
 | VASI | Visual Approach Slope Indicator |
 | SCRS | Serialized Control And Reporting System |