Simon Brooke <
[email protected]> wrote in message
news:<
[email protected]>...
> The hunt'n, shoot'n an' fish'n fraternity use hand warmer thingies that you put charcoal in. I
> don't know how well they work but they might be lighter than batteries, and if you can stick one
> in a glove I would think you can stick one in an overboot.
That somehow reminds me of a quote from Terry Pratchett. "Give a man a fire and he's warm for a day,
but set fire to him and he's warm for the rest of his life."
There are a couple of systems that might be made to work without requiring actual combustion. Look
at
http://www.motorcycle-uk.com/giali/Gialiheatedclothing.html for Klan heated socks at £59.99. Mind
you I think the necessary 24 watts at 12 volts could be a bit of a challenge. There are also
chemical systems such as the one featured at
http://www.heatfactory.com .
Glider pilots have been known to try variations on both methods for flying at altitude. I have heard
of at least one pilot making an emergency landing when his feet got too hot to bear, to the general
amusement of those on the airfield. It's probably much easier to deal with burning feet on a bike
ride though than in a cramped glider cockpit at 18,000'.
--
Dave...