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Talk:HacDC Spaceblimp

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Revision as of 06:35, 24 November 2010 by ITechGeek (talk | contribs) (Undo revision 4013 by Yrewevaca (talk))
Why use helium instead of hydrogen?
Wouldn't you get more lift? Leakage maybe?
Are there flight requirements other than avoiding restricted airspace?
Do you have to notify anyone or announce the release on the radio?