| Acronym | Meaning |
| GRI | Gas Research Institute |
| UCAR | Unmanned Combat Armed Rotorcraft |
| AP | Access Permit |
| PCMS | Process And Change Management System |
| TAS | True Air Speed |
| IAMAPS | International Association Of Meteorology And Atmospheric Physics Sciences |
| U.S./JC | United States/Japan Cooperation |
| DA | Drift Angle |
| USAFGL | United States Air Force Geophysical Laboratory |
| BL | Beta Lambda |