| Acronym | Meaning |
| SAC | Standards Activity Committee (of SISO) - U.S. Strategic Air Command (1946-1992) |
| CI | Commission Internationale De L'?clairage |
| PCL | Passive Coherent Location |
| TWS | Thermal Weapon Sight - Track While Scan |
| ACES | Aerolineas Centrales De Colombia |
| CH | Chieftain Tank -China (FIPS 10-4 Country Code) - Switzerland (ISO 3166 Digram; From Latin Confoederatio Helvetica) |
| MEX | Mexico (ISO 3166 Trigram) |
| HIN | Hindi Language (ISO 639-2 Code) |
| STSM | Senior Technical Staff Member |
| VIA | Versatile Interface Adapter |