| Acronym | Meaning |
| CHIPT | Oil Particle Count Total |
| CAD | Computer Aided Design |
| FOSI | Functional Output Specification Instance |
| IECS | Intergrated Environmental Control System |
| DBDD | Data Base Design Document Udi-e-21250b/mod |
| AHIP | Army Helicopter Improvement Program |
| RABFAC | Radar Beacon Forward Air Control |
| PDS | Project Design Standards |
| IPSC | Information Processing Standards For Computers |
| COMBAT DF | Srs-1 (outboard) |