| Acronym | Meaning |
| ACAP (ACAPS) | Advanced Computer For Array Processing |
| STEP | Stratosphere-Troposphere Exchange Project |
| PFU | Proto Flight Unit |
| CAPTEX | Cross-Appalachian Tracer Experiment |
| MECCA | Mesoscale Experiment Center For Control And Analysis |
| ALAP | As Low As Possible |
| WWW | World Weather Watch |
| SIE | Scale Interation Equipment |
| IFR | Instrument Flight Rules |
| GFP | Government Furnished Property |