H: Hotel
H: Hotel Time Zone
HA: Host Administrator
HA: Humanitarian Assistance
HAA: Heavy Anti-aircraft
HAA: Helicopter Alighting Area
HAAPC: Heavy antiaircraft Practice Camp
HAB: Hardened Aircraft Bunker
HAB: High Air Burst
HAB: High Altitude Bombing
HAB: high altitude burst
HAC: Historical Area Coverage
HAC: Honourable Artillery Company
HAC: House Appropriations Committee
HACC: Humanitarian Assistance Coordination Center
HACQ: HUD Acquisition
HAD: Home Aircraft Depot
HAE: High-Altitude Endurance
HAF: Headquarters Air Force
HAFB: Holloman Air Force Base
HAHO: High-Altitude High-Opening
HAHO: high-altitude high-opening parachute technique
HAIS: Hawaiian Air Intelligence System
HaL: Hurricanes at Landfall
HALE: High-Altitude Long-Endurance
HALO: High Altitude Low Orbit
HALO: High-Altitude Low-Opening
HALO: high-altitude low-opening parachute technique
HANE: High-Altitude Nuclear Effects
HANE: High-Altitude Nuclear Explosion
HANG: Hawaii Air National Guard
HARDS: High-Altitude Radiation Detection System
HARM: High-speed Anti-Radar Missile
HARM: High-Speed Anti-Radiation Missile
HARV: Harassment Vehicle
HAS: Hardened Aircraft Shelter
HASC: House Armed Services Committee
HAT: height above touchdown
HATMD: High-Altitude Theater Missile Defense
HATS: Heuristic Automated Transportation System