Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Transportation Vehicles (hierarchy name)
5. vehicles (transportation)
6. air and space transportation vehicles
7. aircraft
8. [aircraft by form]
9. lighter than air aircraft
10. balloons (aircraft)

Anotations

Scope note:

Balloons of nonextensible material, usually spherical or pear-shaped, open on the bottom and held aloft by the introduction of heated air; they are designed to rise and travel into the atmosphere. Hot-air balloons typically have a container, usually a basket large enough to carry people, suspended below.