aerostatic
or aer·o·stat·i·cal
[ air-uh-stat-ik or air-uh-stat-i-kuh l ]
/ ˌɛər əˈstæt ɪk or ˌɛər əˈstæt ɪ kəl /
adjective
of or relating to aerostatics.
of, or capable of supporting, aerostats.