[aprssig] Balloon- clear package keeps warm

Robert Bruninga bruninga at usna.edu
Tue May 6 15:21:57 EDT 2014

> Or I can make a foam box, with a lid, easy to work with.
> Foam also makes it ridiculously easy to meet the cross sectional
> density requirement for no-waiver unmanned free balloons.

But how cold does it get inside?  Or do throw in a hand-warmer?

I guess I can test that in the Thermal chamber.


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