top | item 18468643 (no title) bradleysmith | 7 years ago At least at loon, the balloon has a ballonet that takes on atmosphere as ballast for descending. discuss order hn newest londons_explore|7 years ago A balloonet is a small balloon inside the big balloon. By filling it with air, you are adding mass to the craft without changing the crafts volume.
londons_explore|7 years ago A balloonet is a small balloon inside the big balloon. By filling it with air, you are adding mass to the craft without changing the crafts volume.
londons_explore|7 years ago