| Acronym | Meaning |
| ITSC | Interservice/industry Training Systems Conference |
| ISG | Instructional Systems Group |
| TMC | Technical Manual Code |
| VMS | Vax Virtual Monitor System |
| PRGB | Proprotor Gearbox |
| PTEL | Prequalified Training Equipment List |
| ACCS | Advanced Communications Control System |
| DOD | Department Of Defense |
| INAV | Inertial Navigation |
| DRLMS | Digital Radar Landmass Simulator |