Hi,
Jules Richardson <julesrichardsonuk(a)yahoo.co.uk> said:
I have a feeling that in survival situations you
don't
make an igloo, but a tunnel that you lay down in. Dig a
trench into the snow first, then you just use a few
blocks above surface level to make the roof. Pack snow
on top of that to seal the gaps. One end is sealed, then
after reversing in you use your pack to seal the
entrance up beind you.
The other alternative is to dig a tunnel. You make it
T-shaped for some reason that currently eludes me; the
entrance is at the lowest point of the T and you lay
across the 'arms'.
The cold air sinks to the bottom, and the warm air, from
your own body heat, rises to the top, so you lie as high
up as possible. You should make a small air hole from the
top of your tunnel and make sure you keep it open so as
not to suffocate. The small entrance low down reduces the
amount of cold air blown in. I hope I never have to do it
for real :-)
I made the mistake one winter evening of not making the step
large enough and found my face frozen to my sleeping bag in
the morning. My EX became claustrophobic while in the snow
shelter and tried to dig her way through the roof. My
current wife has managed to avoid my usual christmas camping
trip, but she tolerates my machines in the basement and lets
the overflow go into the dinning room.
I've got a pair of commodore Pets to pick up as well as few
apples and I can't hide any more in the house. She found
the terminal I had in the car trunk today.