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#8
March 5th 08, 03:56 AM
posted to rec.aviation.piloting
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Any gas balloon pilots here?
On Tue, 4 Mar 2008 14:47:54 -0800 (PST), Ricky
wrote in : hydrogen is a stronger lifting gas than helium. The atmospheric displacement of hydrogen (H2 MW=2), with one fourth the molecular weight of helium (He2 MW=8), should be a considerably larger percentage of its mass. But because the hydrogen molecule is physically smaller, containing it within the balloon envelope may be an issue. My 2¢ 
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