[aprssig] Balloon warmth

[david vanhorn]

On Tue, Mar 23, 2010 at 7:00 PM, AD4BL <ad4bl at arrl.net> wrote:

> An alternative to keeping equipment warm on a balloon flight is to use the
> hand warmers.   They last about
> 8 hours and provide enough heat to keep equipment operating in a cold
> environment.


And most of them need AIR to oxidize the fuel.

Kinda scarce at 100k.
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