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  2. top of the aat hierarchies
  3. Objects Facet
  4. Furnishings and Equipment (hierarchy name)
  5. Transportation Vehicles (hierarchy name)
  6. vehicles (transportation)
  7. air and space transportation vehicles
  8. aircraft
  9. [aircraft by form]
  10. lighter than air aircraft
  11. airships
Scope note
Self-propelled and steerable lighter than air vehicles dependent on the displacement of air by a lighter gas for lift; generally composed of a streamlined hull, usually prolate ellipsoids, with one or more cells, a cabin for crew and passengers, and a propulsion system.
Accepted term: 08-Jul-2024