| Acronym | Meaning |
| HEOS | Highly Eccentric Orbit Satellite |
| MTL | Message Transfer Layer |
| MCIDAS | Man-computer Interactive Data Access System |
| SESQUINET | N/A |
| UCAR | Unmanned Combat Armed Rotorcraft |
| ASROC | Antisubmarine Rocket |
| NEAQS | New England Air Quality Study |
| AX | Auxiliary Systems |
| ACME | Airborne Carbone In The Mountains Experiment |
| ACSE | Association Control Service Element |