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How long can a balloon stay at a certain altitude (~14km) and what are the techniques to control the altitude? Are there low-cost ($300) methods to maintain an altitude of 14km for weeks? The foreseen payload would be around 1kg.

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  • $\begingroup$ Since someone might 'write a book' on this area, it seems 'too broad' for an SE site. A good tip on 'too broad' is that it includes more than one question. Try to limit each Q&A thread to a single question. $\endgroup$ – Andrew Thompson Feb 24 '16 at 7:44
  • $\begingroup$ Thanks for your help! Should I edit this question or make a new one? I would simplify it to: How long can a balloon stay at a certain altitude (~14km) and what are the techniques to control the altitude? $\endgroup$ – wuza Feb 24 '16 at 8:23
  • $\begingroup$ "Should I edit this question or make a new one?" I think you should edit the question down to the lesser question you proposed, then move perhaps one or two of the others to new, separate Q&A threads. See how they go, (answers to one or more might show the idea to be impractical) then ask more questions once those few are answered. $\endgroup$ – Andrew Thompson Feb 24 '16 at 8:37
  • $\begingroup$ Hi wuza. I edited the title (and removed some now seemingly obsolete tags) to try to better summarize the question you are asking. $\endgroup$ – user Feb 24 '16 at 11:59
  • $\begingroup$ I voted to close this because as written it doesn't seem to have the slightest relevance to space exploration. If you left out an important fact that would make it relevant for this site, please edit that in. $\endgroup$ – Organic Marble Feb 24 '16 at 14:46

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