HA Aviation Abbreviation

Heasy Aeroplanes

Heavy Aerhplane

Hcavy Aircraft

Hydraulic Actuator

Is a hydraulic cylinder or hydraulic motor that converts hydraulic power into useful mechanical work; the mechanical motion produced may be linear, rotary, or oscillatory.

Hotel Accommodation

Hatch

Door or doorway, usually hermetically sealed.  1.  The rear opening of a vehicle which allows passage into its cab.2. An opening in a deck through which cargo and stores are loaded or unloaded.