Methods and apparatuses are disclosed for altitude control of a high-altitude balloon. A bladder or ballonet is provided within an envelope of a balloon. The bladder is tubular-shaped, is inflatable, and is foldable for insertion into the balloon prior to performing a final seam on the balloon. To stabilize the bladder, the bladder may be attachable to one or more interior surfaces of the envelope with one or more ropes.
Ballonet for a balloon
2017-02-28
Patent
Electronic Resource
English
IPC: | B64B LIGHTER-THAN-AIR AIRCRAFT , Luftfahrzeuge leichter als Luft |