3 ms·
Volume is changing somewhere. You compressed a gas bag so now normal outside air fills that space and your airship is heavier.
by Fatnino 4y ago
Volume is changing somewhere. You compressed a gas bag so now normal outside air fills that space and your airship is heavier.
- TylerE 4y agoIt's a rigid envelope, not a gas bag. The volume doesn't change, and you certainly wouldn't mix in atmospheric air.
- smolder 4y agoI don't think it's infeasible that air could displace the lifting gas that was compressed, even in a rigid envelope. You could maybe build flexible bladders on the inside for this purpose. Another way to add weight using the same principle would just be to compress outside air into rigid tanks on the craft, making it heavier.
- devilbunny 4y agoDirigibles are rigid airframes, not rigid gas containers. They used gas bags to displace normal air from inside the frame and replace it with lifting gas.