English abbreviations from haj to hans
- HAJ (Hannover Airport)
- HAK (Haikou Meilan International Airport)
- HAL (Hardware Abstraction Layer)
- HAL 9000 (Heuristic Algorithmic Computer 9000 (2001 A Space Odessy))
- HALCA ((telescope) Highly Advanced Laboratory for Communications and Astronomy, a satellite that is part of the VLBI Space Observatory Program, a Japanese radio astronomy project)
- HALE (High Altitude Long Endurance)
- HALO (High Altitude Low Opening, High Activity/Low Observable)
- HALS (Helicopter Automatic Landing System)
- HALT (Hungry Angry Lonely Tired)
- HAM (Amateur radio operator)
- H-AMI (Host Automated Message Interface)
- HAMS (Headquarters and Maintenance Squadron - Marine Aircraft Group (USMC))
- HAN (Health Alert Network)
- HANA (Hispanic Asian and Native American)
- HAND (Humanitarian Aid Network For Distribution)
- HANDLE (Holistic Approach To Neuro Development And Learning Efficiency)
- Hangar "[#]" (A nonexistent hangar (e.g. if there are 4 hangars, then it would be hangar 5) heard most often over the radio that is code for the bathroom/Porta John. Example: "Get me to hangar 5!")
- HANS (Head And Neck Support (device used in many race cars))